ski-lift cables aren’t string at an angle 30 ° to the top of a 5000 ft mountain. How long are the cables?

Answers

Answer 1
The cables are 5,060.567 ft



You use tan to find this because 5000 is the opposite and your are trying to find the adjacent to the angle so then you can do Pythagorean theorem to find the length of the cables

Tan(30)=5000/x
Multiply x on both sides
X•tan(30)=5000
Divide by tan(30)
X= 5000/ tan(30)
X= -780.5997608

Then you plug it in because x is the bottom length of the right triangle and now your finding the hypotenuse, the length of the cables

-780.5997608^2 + 5000^2 = x^2
609,335.9866 + 25,000,000= x^2
25,609,335.99 =x^2
Then you square root the number
And x = 5,060.566766 ft

And your just round to the nearest hundredth or tenth like it did up too
Answer 2

Answer: the length of the cable is 10000 feet.

Step-by-step explanation:

A right angle triangle is formed. The length of the cable represents the hypotenuse of the right angle triangle. The height of the mountain represents the opposite side of the right angle triangle. To determine the length of the cable, L, we would apply the Sine trigonometric ratio.

Sin θ = opposite side/hypotenuse. Therefore,

Sin 30 = 5000/L

L = 5000/Sin 30 = 5000/0.5

L = 10000 ft


Related Questions

An NHL hockey player has 59 goals so far in season what are the possible numbers of additional goals the player can score to make or break the NHL record of 92 goals in a season

Answers

Answer:

53 by the fact NFL players use a for wheeler u Dan je e eka a f wjd r

Francisco's game involves a bag of 3 green, 2 yellow, 4 red, and 3 black marbles. Andrew wants to increase the likelihood of selecting a yellow marble. How can the game be modified to make drawing a yellow marble more likely? Select all that apply.XAndrew should add more green marbles to the bag.-Andrew should add more yellow marbles to the bag.-Andrew should remove from the bag 1 green, 1 black, and 2 red marbles.XAndrew should add more black marbles to the bag-Andrew should triple the number of yellow marbles in the bag.

Answers

To increase the likelihood of selecting a yellow marble Andrew should:

-Add more yellow marbles to the bag

-Remove from the bag 1 green, 1 black, and 2 red marbles

-Triple the number of yellow marbles in the bag

Answer:

B,C,E

Step-by-step explanation:

just did it

A statistics professor plans classes so carefully that the lengths of her classes are uniformly distributed between 48.048.0 and 53.053.0 minutes. Find the probability that a given class period runs between 50.550.5 and 51.7551.75 minutes.

Answers

Answer:

Probability = 0.241

Step-by-step explanation:

We can find the probability that a given class period runs through the given time recognizing that a uniform probability distribution is mostly a rectangle with an area equal to 1.

Therefore,

Probability = 51.7551 - 50.550/53.053 - 48.0480 = 1.2057/5.005

= 0.241

Answer:

The probability of selecting a class that runs between 50.550.5 and 51.7551.75 minutes is 0.24

Step-by-step explanation:

A uniform distribution is a flat distribution that has the same probability density for every number. The area under the graph of the distribution must be 1. Since this distribution runs from 48.048.0 to 53.053.0  minutes,

it has a range of 5.005 (53.053.0 - 48.048.0).

The density must be 1/5.005 ≅ 0.2, so that 5.005*0.2 ≅ 1.0.

 

To find the probability of being between two numbers multiply the range between the numbers by the probability density.

range:51.7551.75 - 50.550.5 ≅ 1.2

1.2*0.2 = 0.24

P(50.550.5 < x < 51.7551.75) = 0.24

The probability of selecting a class that runs between 50.550.5 and 51.7551.75 minutes is 0.24

If a student places in the 99th percentile on an exam, she performed better than 99% of all students who completed the exam. Her performance is similar to a statement based on a __________.

Answers

Answer:

Cumulative frequency distribution

Step-by-step explanation:

Cumulative frequency distribution is a form of a frequency distribution that represents the sum of a class and all classes below it. Remember that frequency distribution is an overview of all distinct values (or classes of values) and their respective number of occurrences.

Final answer:

Placing in the 99th percentile means a student did better than 99% of test takers, akin to scoring beyond the second standard deviation, a high achievement.

Explanation:

If a student places in the 99th percentile on an exam, this indicates that her performance was better than 99% of all students who completed the exam. Her achievement is akin to being beyond the second standard deviation in the context of a normal distribution, showing an exceptional score. In the given context, this means she likely scored higher than what is considered the range for the majority of her peers.

Being in the 90th percentile would indicate that 90 percent of test scores were at or below that mark, a clear demonstration of high achievement compared to peers. In educational measurement, the choice between absolute rating and relative ranking can greatly affect the evaluation of student performance. With relative ranking, a student's performance is compared against that of their peers, such as being in the top 10% as opposed to achieving a specific score percentage, which would be an absolute rating.

Brainliest + 20 points to whoever helps!!!

Under which circumstances should you use a two-population z test?
a. The standard deviation is unknown.
b. The sample size is less than 30.
c. The population is slightly skewed and n > 40.
d. The standard deviation is known and n > 30.

Answers

Answer:

D. The standard deviation is known and n > 30.

Step-by-step explanation:

Your sample size is greater than 30.Data points should be away from each other.Your data should be commonly categorized. Your data should be randomly picked from a population. Each item should have an equal chance of being selected. The sample sizes should be equal.
Final answer:

A two-population z test should be used when the standard deviation is known and the sample size is greater than 30.

Explanation:

The circumstances under which you should use a two-population z test are:

The standard deviation is known and the sample size is greater than 30.

Learn more about Two-population z test here:

https://brainly.com/question/32498061

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A CHAIR regular is 349.It is on clearance for 30% off and a customer uses a 15% off coupon after that. What is the final cost of the chair before sales tax

Answers

Answer:

$207.655

Step-by-step explanation:

Firstly, we calculate the value taken off the cost by the clearance sales tag.

That would be 30/100 * 349 =104.7

We subtract this from the original = 349-104.7 = 244.3

Now, he applied a 15% coupon. That would be 15/100 * 244.3 = 36.645

The cost of the chair before sales tax = 244.3-36.645 = 207.655

Determine whether the statement is sometimes, always, or never true.

If ax + b - 4 = b and a doesn't = 0 then x = 4/a

sometimes
always
not enough information provided
never

Answers

Answer:

  always true

Step-by-step explanation:

Adding 4-b to both sides of the equation gives ...

  ax = 4

Then dividing by "a" gives ...

  x = 4/a

This is always true when a≠0.

The population of a city is expected to increase by 7.5% next year. If p represents the current population, which expression represents the expected population next year.

Answers

Answer:

Population next year = 1.075p

Step-by-step explanation:

The current population can be represented by 1 p the increase in the population number by next year is 7.5% p or 7.5/100 p that equals to 0.075p. The expression that represents the expected population by next year is:

Population next year = This year population + expected growth

Population next year = 1p + 0.075p = 1.075p

Given Information:

Population rate = 7.5 %

Current population = p

Required Information:

Population next year = ?

Answer:

Population next year = 1.075p

Step-by-step explanation:

The rate of increase in the population is given as 7.5 %

We know that the current population is equal to p

The population in the next year would be the sum of current population and 7.5 % of current population.

Population next year = current population + 7.5% of current population

Population next year = p + 7.5% of p

Population next year = p + 0.075*p

Population next year = p(1 + 0.075)

Population next year = p(1.075)

Population next year = 1.075p

A rectangle is constructed with its base on the diameter of a semicircle with radius 2 and with its two other vertices on the semicircle. What are the dimensions of the rectangle with maximum​ area?

Answers

Answer:

L = 2*√2

w = √2

Step-by-step explanation:

Given:

A rectangle is constructed with its base on the diameter of a semicircle with radius 2 and with its two other vertices on the semicircle.

Find:

What are the dimensions of the rectangle with maximum​ area?

Solution:

- Let the length and width of the rectangle be L and w respectively.

- We know that Length L lie on the diameter base. So , L < 4 and the width w is less than 2 . w < 2.

- Using the Pythagorean Theorem, we relate the L with w using the radius r = 2 of the semicircle.

                           r^2 = (L/2)^2 + (w)^2

                           sqrt (4 - w^2 ) = L / 2

                           L = 2*sqrt (4 - w^2 )           L < 4 , w < 2

- The relation derived above is the constraint equation and the function is Area A which is function of both L and w as follows:

                          A ( L , w ) = L*w

- We substitute the constraint into our function A:

                          A ( w ) = 2*w*sqrt (4 - w^2 )

- Now we will find the critical points for width w for which A'(w) = 0

                         A'(w) = 2*sqrt (4 - w^2 ) - 2*w^2 / sqrt (4 - w^2 )  

                         0 = [2*sqrt (4 - w^2 )*sqrt (4 - w^2 )   - 2*w^2] / sqrt (4 - w^2 )  

                         0 = 2*(4 - w^2 )   - 2*w^2

                         0 = -4*w^2 + 8

                         8/4 = w^2

                         w = + sqrt ( 2 )   ..... 0 < w < 2

- From constraint equation we have:

                          L = 2*sqrt (4 - 2 )

                          L = 2*sqrt(2)

A bag contains 4 red, 5 blue, and 6 green marbles: ​One blue marble is selected and NOT replaced. If a 2nd marble is drawn, what is the probability that the 2nd marble drawn is a blue marble? ​Write your answer as a simplified fraction.

Answers

Answer:

2/7

Step-by-step explanation:

To find the this first you need the total number of marbles minus one since the blue marble was taken.

4+5+6-1=14

after one blue marble being picked there are 4 blue left, so the fraction is

4/14 and after being simplified it is 2/7

Answer:

the true is the answer is g

Step-by-step explanation:

a. I have five coins in my pocket – four are fair, and the other is weighted to have a 70% chance of coming up heads. I pull one out at random and flip it three times. What is the conditional probability that I get four heads given I pulled out the weighted coin?

Answers

Answer:

The conditional probability that I get four heads given I pulled out the weighted coin = 0.2401

Step-by-step explanation:

Probability of getting 4 heads from 4 trials for a fair coin = 0.5⁴

But given that it is the weighted coin that is pulled out,

The probability of getting 4 heads from 4 trials = 0.7⁴ = 0 2401

Vera claimed the solution set on the number line represents the inequality Negative 78.9999 greater-than-or-equal-to x. A number line going from negative 82 to negative 78. A closed circle is at negative 79. Everything to the left of the circle is shaded. Which error did Vera make? Vera wrote the inequality with the variable on the left side of the relation symbol. Vera wrote a relation symbol that does not represent the direction of the ray. Vera selected an inequality that does not include –79 in its solution set. Vera used the wrong number in her inequality.

Answers

Answer:

Vera used the wrong number in her inequality.

Step-by-step explanation:

Inequalities are graphed to present a clearer picture of their behavior

To graph an inequality, the following are required steps

(1) Locate the indicated number on the other side of the  inequality sign variable x in the inequality equation (in this case we have 78.9999 ≥ x)

(2) Draw a number line and place an open or shaded circle around around the number specified in the inequality equation depending on whether the variable is also equal to the number

(3) Shade the possible numbers of the variable

In this case Vera used 78.999 in the equation and 79 on the graph

Answer:

Vera used the wrong number in her inequality.

Step-by-step explanation:

Vera graphed the inequality -78.9999 ≥ x. However, she plotted the point at -79, not -78.9999. Thus, we can tell the answer is Vera used the wrong number in her inequality.

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Chris wants to fence three sides of a rectangular exercise yard for his dog. The fourth side of the exercise yard will be a side of the house. He has
120
feet of fencing available. Find the dimensions that will enclose the maximum area.

The fence parallel to the house is ___
feet, the fence perpendicular to the house is ____
feet and the area of the yard is ____
square feet.

Answers

Answer:

parallel: 60 ftperpendicular: 30 ftarea: 1800 ft^2

Step-by-step explanation:

Let x represent the length of fence parallel to the house. Then the length perpendicular is ...

  y = (120 -x)/2

The area of the yard is the product of these dimensions, so is ...

  A = xy = x(120-x)/2

This is the equation of a parabola that opens downward and has zeros at x=0 and x=120. The maximum (vertex) is on the line of symmetry, halfway between these zeros, at x=60.

The fence parallel to the house is 60 feet.

The fence perpendicular to the house is (120-60)/2 = 30 feet.

The area of the yard is (60 ft)(30 ft) = 1800 ft^2.

what is the approximate volume of the cylinder? use 3.14 for TT 7 cm radius 26 cm height

Answers

The volume of the cylinder is [tex]4000.36 \ cm^3[/tex]

Explanation:

Given that the radius of the cylinder is 7 cm

The height of the cylinder is 26 cm

We need to find the volume of the cylinder.

The volume of the cylinder can be determined using the formula,

[tex]Volume = \pi r^2 h[/tex]

Let us substitute the values [tex]\pi= 3.14[/tex] , [tex]r=7[/tex] and [tex]h=26[/tex] in the above formula.

Thus, we have,

[tex]Volume = (3.14)(7)^2(26)[/tex]

Simplifying the terms, we get,

[tex]Volume = (3.14)(49)(26)[/tex]

Multiplying the terms, we have,

[tex]Volume = 4000.36 \ cm^3[/tex]

Thus, the approximate volume of the cylinder is [tex]4000.36 \ cm^3[/tex]

Solve the system of equations.
-5y+6x=40
3y-8x=-46

x=
y=

Answers

Answer:

X=5

Y=-2

Step-by-step explanation:

Answer:

x = 5

y = -2

Step-by-step explanation:

Let's solve the system of equations, this way:

-5y + 6x = 40

3y - 8x = -46

******************

-5y + 6x = 40

6x = 40 + 5y

x = (40 + 5y)/6

******************

Substituting x and solving for y in the 2nd equation:

3y - 8x = - 46

3y - 8 * [(40 + 5y)/6] = - 46

3y - (320 + 40y)/6 = - 46

18y - 320 - 40y = - 276 (Multiplying by 6 at both sides)

-22y = - 276 + 320 (Adding 320 at both sides)

-22y = 44

y = -44/22

y = -2

**************************

Solving for x in the 1st equation:

-5y + 6x = 40

-5 * - 2 + 6x = 40

10 + 6x = 40

6x = 40 - 10 (Subtracting 10 at both sides)

6x = 30

x = 30/6

x = 5

Jane must select three different items for each dinner she will serve. The items are to be chosen from among five different vegetarian and four different meat selections. If at least one of the selections must be vegetarian, how many different dinners could Jane create?
A. 30
B. 40
C. 60
D. 70
E. 80

Answers

Answer:

E. 80

Step-by-step explanation:

First consider exactly what the problem is asking. You have to make a dinner and AT LEAST one of the dishes has to be vegetarian. So then we could have all three be vegetarian (V V V), 2 vegetarian with one meat (V V M), or one vegetarian with 2 meat (V M M). If I can find the number of arrangements possible for each of the possibilities and add them, we should have our answer.

Consider first the all vegetarian option. There are 5 vegetarian meals on the menu and we may choose 3 of them. This will be a combination since the order in which we choose doesn't matter. For example if my 5 vegetarian dishes are salad, hummus, rice, lentils and pasta, it doesn't matter what order I serve them in, since they will all be a part of the meal. Simply put, placing hummus, rice, and lentils on the table is the same as placing rice, lentils and hummus on the table if everybody shares the dishes. If I had specific guests assigned to the each dish then the order would matter, and it would be a permutation. For example if three of Jane's guests, (lets say Mike, Frank, and Bob) are going to have a specific dish, then the arrangement where Mike has rice, Bob has lentils, and Frank has pasta is different from the arrangement where Mike has lentils, Bob has rice, and Frank has pasta. Since there is no mention of a specific order this has to go in, it is safe to assume a combination. So how many ways can we choose 3 vegetarian dishes from 5 options? This will be 5 C 3.

So we found that (V V V) gives us 5 C 3, so lets examine the other remaining cases. (V V M) implies from 5 vegetarian options we can choose 2 and from 4 meat options we choose one. Then (V V M) gives us 5 C 2 * 4 C 1. Likewise for (V M M) we can say 5 C 1 * 4 C 2.

Putting it all together we have 5 C 3 + 5 C 2 * 4 C 1 + 5 C 1 * 4 C 2. 10 + 10*4 +5 *6 =80.

PLLLZ HELP Find Sn if a1 = 20, d = –10, and n = 25.

–2500

–2750

2500

–5000

Answers

Option A: [tex]-2500[/tex] is the value of [tex]S_{25[/tex]

Explanation:

It is given that the first term is [tex]a_1=20[/tex]

The common difference is [tex]d=-10[/tex]

We need to determine the sum of 25 terms.

The sum of  terms of an arithmetic series can be determined using the formula, [tex]S_n=\frac{n[2a_1+(n-1)d]}{2}[/tex]

Substituting [tex]n=25[/tex] , [tex]a_1=20[/tex] and [tex]d=-10[/tex]

Thus, we have,

[tex]S_{25}=\frac{25[2(20)+(25-1)(-10)]}{2}[/tex]

Simplifying the values, we get,

[tex]S_{25}=\frac{25[40+(24)(-10)]}{2}[/tex]

[tex]S_{25}=\frac{25[40-240]}{2}[/tex]

Subtracting the terms within the bracket, we get,

[tex]S_{25}=\frac{25[-200]}{2}[/tex]

Multiplying the terms in the numerator, we have,

[tex]S_{25}=\frac{-5000}{2}[/tex]

Dividing, we get,

[tex]S_{25}=-2500[/tex]

Thus, the sum of the 25 terms is [tex]-2500[/tex]

Therefore, Option A is the correct answer.

Answer:

-2500 answer

Step-by-step explanation:

Find a1, d, and the Explicit Rule for this arithmetic sequence: -3, 4, 11, 18, 25, ...
1.)a1 =-3, d=-7, an = -7n - 3
2.)a1 =-3, d = 7, an = 7n - 10
3.)21 = -3, d =-7, an = -7n - 10
4.)a1 = -3, d = 7, an = 7n - 3​

Answers

Answer:

2

Step-by-step explanation:

Answer: 2.)a1 =-3, d = 7, an = 7n - 10

Step-by-step explanation:

In an arithmetic sequence, consecutive terms differ by a common difference.

The formula for determining the nth term of an arithmetic sequence is expressed as

an = a1 + d(n - 1)

Where

a represents the first term of the sequence.

d represents the common difference.

n represents the number of terms in the sequence.

From the information given,

a1 = - 3

d = 4 - - 3 = 11 - 4 = 18 - 11 = 25 - 18 = 7

Therefore, the Explicit Rule for this arithmetic sequence is

an = - 3 + 7(n - 1)

an = - 3 + 7n - 7

an = 7n - 7 - 3

an = 7n - 10

What is the area of the largest circular fire that can be made in this fire pit? Use 3.14 for π. Round to the nearest square inch.
!no absurd answers, please! : (

Answers

Area of the largest circle fit in the fire pit is 4069.44 square inches.

Solution:

Length of the rectangular pit = 7 feet

Width of the rectangular pit = 6 feet

The diameter of a largest circle inscribed in a rectangle is equal to the smaller side of the rectangle.

Diameter of the largest circle = 6 feet

Radius of the largest circle = 3 feet

Area of the circle = πr²

                             = 3.14 × 3²

Area of the circle = 28.26 square feet

Let us convert square feet into square inches.

1 square feet = 144 square inches

28.26 square feet = 28.26 × 144

                              = 4069.44 square inches

Area of the largest circle fit in the fire pit is 4069.44 square inches.

A consumer organization inspecting new cars found that many had appearance defects. While none had more than 3 defects, 7% had three, 11% had two, and 21% had one defect. Find the expected number of appearance defects in a new car, and the standard deviation.

Answers

Answer:

E(X) = 0.64

Sd(X) = 0.933

Step-by-step explanation:

3(0.07) + 2(0.11) + 1(0.21)

E(X²) = 3²(0.07) + 2²(0.11) + 1²(0.21)

= 1.28

Var(X) = 1.28 - 0.64² = 0.8704

Sd = 0.933

Ramon wants to cut a rectangular board into identical square pieces. If the board is 18 inches by 30 inches, what is the least number of square pieces he can cut without wasting any of the board?

Answers

Answer: 15

Step-by-step explanation:

Answer:

he have to kep cutting them until he find out he answer

Step-by-step explanation:

If the risk-free rate is 7 percent, the expected return on the market is 10 percent, and the expected return on Security J is 13 percent, what is the beta of Security J

Answers

Answer:

0.02 or 2% = Beta

Step-by-step explanation:

Given that,

Risk-free rate = 7 percent

Expected return on the market = 10 percent

Expected return on Security J = 13 percent

Therefore, the beta of Security J is calculated as follows;

Expected return on Security J = Risk-free rate + Beta (Expected return on the market - Risk-free rate)

13 percent = 7 percent + Beta (10 percent - 7 percent)

0.13 - 0.07 = 0.03 Beta

0.06 = 0.03 Beta

0.06 ÷ 0.03 = Beta

0.02 or 2% = Beta

Find the range and the interquartile range.
57,96,72,63,88

Answers

The range is 39

The interquartile range is 32

Explanation:

The given data is [tex]57,96,72,63,88[/tex]

Let us arrange the data in ascending order.

Thus, we have,

[tex]57,63,72,88,96[/tex]

We need to determine the range and interquartile range of the data.

Range:

The range of the data is the difference between the highest and the lowest value in the given data.

Highest value = 96

Lowest value = 57

Range = Highest value - Lowest value

           = 96 - 57

           = 39

Thus, the range of the data is 39

Interquartile range:

The interquartile range is the difference between the upper quartile and the lower quartile in the given data.

From, the given data, we have, 3 quartiles. They are [tex]Q_1 , Q_2[/tex] and [tex]Q_3[/tex]

[tex]Q_2=72[/tex]

[tex]Q_1=\frac{57+63}{2} =60[/tex]

[tex]Q_3=\frac{88+96}{2} =92[/tex]

Interquartile range = [tex]Q_3-Q_1[/tex]

                               =  [tex]92-60[/tex]

                               =  [tex]32[/tex]

The interquartile range is 32

List the data set from least to greatest:

57, 63, 72, 88, 96

Range: Highest value - Lowest value = answer

Range: 96 - 57 = 39

(IQR) Interquartile Range: Upper quartile - Lower quartile = answer

(IQR) Interquartile range: 88.5 - 57.5 = 31

Use the value of the linear correlation coefficient r to find the coefficient of determination and the percentage ofthe total variation that can be explained by the linear relationship between the two variables. r = 0.885 (x = weight of male, y = waist size of male)

Answers

Answer:

Step-by-step explanation:

The coefficient of determination = [tex]r^{2} = 0.885^{2}[/tex] = 0.7832

It means about 78% variation in waist size of males can be explained by their weight and about 23% can not be explained.

A student in statistics argues that the concepts of mutually exclusive events and independent events are really the same, and that if events are mutually exclusive they must be independent. Do you agree with this statement

Answers

Answer:

No, Mutually exclusive events and Independent events are not the same.

Step-by-step explanation:

Mutually exclusive events and Independent events are not the same.

Mutually Exclusive Events:

Mutually exclusive events are those events that cannot occur together, i.e. they cannot take place at the same time.

For example, the events of tossing a Head and Tails are mutually exclusive. This is because when a coin is flipped it cannot land on both sides at once.

Independent Events:

Independent events are those events that can occur at the same time without affecting each other, i.r. they are not dependent on the occurrence of other events in the sample space.

For example, on rolling two fair die the events of first die rolling 4 and the second die rolling 1 are independent.

Final answer:

Mutually exclusive events cannot occur simultaneously, which means P(A AND B) = 0. Independent events occur independently of each other, and their combined probability is P(A AND B) = P(A)P(B). They are different concepts; being mutually exclusive does not imply events are independent.

Explanation:

No, the statement that mutually exclusive events and independent events are the same is incorrect. Mutually exclusive events are two or more events that cannot happen at the same time. For example, when tossing a coin, the events of landing on heads and tails are mutually exclusive because the coin cannot land on both sides at once. This means that P(A AND B) = 0 for mutually exclusive events A and B.

Independent events, however, are those where the occurrence of one event does not affect the probability of the other event occurring. In other words, events A and B are independent if the probability of A occurring is the same, regardless of whether B has occurred, and vice-versa. This means that P(A AND B) = P(A)P(B) for independent events A and B.

Therefore, while mutually exclusive events must have a combined probability of zero (they cannot both occur), independent events are characterized by one event's occurrence not influencing the probability of the other event occurring. Essentially, mutually exclusive deals with the impossibility of events happening simultaneously, whereas independence is about the absence of any causal connection between them.

For how many values of k is it true that |k - 3| + 2 is equal to one?

A) One
B) Two
C) None
D) More than two

Answers

Answer:

C) None

Step-by-step explanation:

|k - 3| + 2 = 1

|k - 3| = -1

Which is not possible because a mod can never be negative

Final answer:

There are zero values of k that make the equation |k - 3| + 2 = 1 true because the absolute value of any number cannot be negative.

Explanation:

To determine for how many values of k the equation |k - 3| + 2 = 1 is true, we need to consider what the absolute value represents. The absolute value of a number is its distance from 0 on the number line, regardless of direction.

Thus, |k - 3| represents the distance of k from 3.

First, we simplify the equation by subtracting 2 from both sides:

|k - 3| = -1

Since the absolute value of a number is always non-negative, there can be no real number k that would make |k - 3| equal to -1.

Therefore, there are zero values of k that would satisfy the original equation.

A soccer ball is kicked from the ground with an initial upward velocity of 90 feet per second. The equation h=-16t^2+90t gives the height h of the ball after t seconds. Find the maximum height of the ball.

Answers

Answer:

[tex]h_{max} = 30.012\,ft[/tex]

Step-by-step explanation:

The maximum height of the soccer can be determined with the help of the First Derivative and Second Derivative Tests, whose expression are introduced below:

[tex]\frac{dh}{dt} = -32\cdot t + 90[/tex]

[tex]-32\cdot t + 90 = 0[/tex]

[tex]t = 0.356\,s[/tex]

[tex]\frac{d^{2}h}{dt^{2}} = -32[/tex]

According to both tests, the critical value leads to maximum height. Then:

[tex]h_{max} = -16\cdot (0.356)^{2}+90\cdot (0.356)[/tex]

[tex]h_{max} = 30.012\,ft[/tex]

What are the eight-digit grid coordinates for benchmark 86 (circled in red)?

Answers

Final answer:

Without a map or structured dataset, it is not possible to provide the eight-digit grid coordinates for benchmark 86 as requested.

Explanation:

The student asked for the eight-digit grid coordinates for benchmark 86, which is circled in red. To determine the eight-digit grid coordinates, we need a map with grid lines or specific information that provides the exact location of benchmark 86. Unfortunately, the data provided does not contain adequate information to pinpoint the exact eight-digit grid coordinates for this benchmark. Grid coordinates are typically derived from a more structured dataset or map rather than the types of numbers presented in the question. Those appear to be an arbitrary sequence of numbers and are not formatted as grid coordinates, which usually consist of an easting and a northing.

Please someone help me on 2 problems 25 points ya boy be struggling

Answers

Answer:

6) x = 17 ft

7) 42 in

Step-by-step explanation:

6) length of the tangents are equal.

2x - 7 = 27

2x = 34

x = 17

7) if you draw a line from T passing through the centre of the circle, it will divide the triangle into two congruent triangles

Perimeter = 2(5+7+9) = 42 in

all you need to know is that two tangents to a circle from the same point are equal one to the other so for the first problem you got 27=2x-7, solve that and you get 17. then in the second one you can get the left measurements of the triangle because of the tangents. you get TA=9, NG=7 and ER=5. add everything up to get 42 and that’s the answer

A prism with a base area of 8 cm² and a height of 6 cm is dilated by a factor of 54 . What is the volume of the dilated prism? Enter your answer, as a decimal, in the box

Answers

Question:

A prism with a base area of 8 cm² and a height of 6 cm is dilated by a factor of 5/4 .

What is the volume of the dilated prism?

Enter your answer, as a decimal, in the box.

Answer:

The volume of the dilated prism is [tex]93.75 \ {cm}^{3}[/tex]

Explanation:

A prism with a base area of 8 cm² and a height of 6 cm

The volume of the prism can be determined by the formula, [tex]V=Bh[/tex]

Volume of the prism is given by

[tex]V=Bh[/tex]

[tex]V=(8)(6)[/tex]

[tex]V=46\ cm^3[/tex]

Thus, the volume of the prism is [tex]46 \ {cm}^{3}[/tex]

It is also given that the volume of the dilated prism is dilated by a factor of [tex]\frac{5}{4}[/tex]

Hence, the new volume is given by

[tex]Volume = 48(\frac{5}{4} )^3[/tex]

             [tex]=48(\frac{125}{64} )[/tex]

             [tex]=48(1.953125)[/tex]

             [tex]=93.75 \ {cm}^{3}[/tex]

Thus, the volume of the dilated prism is [tex]93.75 \ {cm}^{3}[/tex]

Final answer:

The volume of the dilated prism is 93.75 cm³ after applying the dilation factor of 5/4 to the original volume.

Explanation:

To find the volume of the dilated prism, we must apply the dilation factor to the original dimensions of the prism. Since a volume is a three-dimensional measure, the dilation affects all three dimensions (the base area and the height). The dilation factor is given as 5/4.

We must raise this factor to the third power when dealing with volumes, since we are dealing with three dimensions. Therefore, the original volume, V, of the prism is the base area multiplied by the height, which is:

V = 8 cm² × 6 cm = 48 cm³.

Applying the dilation factor, the volume V' of the dilated prism is:

V' = V × (5/4)³.

First, calculate:

(5/4)³3 = 125/64.

Then multiply the original volume by this factor:
V' = 48 cm³ × (125/64) = (48 × 125) / 64 = 6000 / 64 = 93.75 cm³.

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