You and the chess teacher have been playing chess for 18 minutes to make the chess club you must win the game in less than 45 minutes how much time do you have to win the chess game

a^6-64

I used the foil method

(a^3+8)(a^3-8)

a^6-8a^3+8a^3-64 middles cancel out

a^6-64

Answer:

The individuals are observed the exact way they act in real life.

Step-by-step explanation:

There are two main types of studies in research; one is controlled or experimental and the other is observational.

In observational studies, the individuals participating in study are not manipulated or intervened or controlled in any way by the researcher.

Hence the statements best describes a characteristic of an observational study is the individuals are observed the exact way they act in real life !

Answer: You just bought a new briefcase and need to pick a four digit combination out of 10 possible numbers for the lock. If order does matter how many possible lock combinations can you choose from?

Step-by-step explanation:

Final answer:

Interpreting the preference of 100 college students on campus to predict an election result is unlikely to yield a representative sample of the national electorate. A more scientific poll requires a larger, random, and demographically diverse sample of the voting population.

Explanation:

The student's approach of interviewing 100 students on a college campus to predict the outcome of a national election may not provide a representative sample of the general voting population. A sample to make general predictions about national elections should reflect the demographics and political distribution of the entire nation, which is unlikely to be the case for a sample drawn solely from a college campus.

Furthermore, the sample may also suffer from selection bias if, for instance, those who choose to walk through the courtyard are not representative of the entire student body, let alone the country's electorate.

To conduct a more accurate and scientific poll, a larger and more diverse sample size would need to be chosen randomly from among all potential voters in the nation and it should include a mix of individuals with a history of voting and other demographic characteristics that align with the broader population.

Answer:

A

Step-by-step explanation:

A shift along the x-axis is the opposite in the graph than in the equation. Rather than the x-intercept(s) being negative if the equation is x - n, they become positive; likewise for the other way around. A is the only answer that follows this rule. However, the y-intercept is y = n, so if n is negative, y gets shifted down rather than up.

The answer is:

The total time traveled  by the cabin cruiser is equal to 9 hours.

To solve the problem, we need to write two equations using the given information about the travel upstream and downstream.

Then, we need to write two equations:

Let be "x" the speed of the cabin cruiser (12 mph in still water)

Let be "y" the speed of the current (4 mph).

So,

For the travel against the current (upstream), we have:

[tex](x-y)*t_{upstream}=48miles\\\\(x-y)*t_{upstream}=48miles\\\\(x-4mph)*t_{upstream}=48miles[/tex]

For the travel with the current (downstream), we have:

[tex](x+y)*t_{downstream}=48miles\\\\(x+y)*t_{downstream}=48miles\\\\(x+4mph)*t_{downstream}=48miles[/tex]

Also, we know from the statement that the speed of the cabin cruise traveling in still water is equal to 12mph.

So,

Calculating the time traveled upstream, we have:

[tex](x-4mph)*t_{upstream}=48miles(12mph-4mph)*t_{upstream}=48miles(8mph)*t_{upstream}=48milest_{upstream}=\frac{48miles}{8mph}=6hours[/tex]

Calculating the time traveled downstream, we have:

[tex](x+4mph)*t_{downstream}=48miles(12mph+4mph)*t_{downstream}=48miles(16mph)*t_{downstream}=48milest_{downstream}=\frac{48miles}{16mph}=3hours[/tex]

Now that we know the time traveled upstream and downstream, we need to calculate the total time traveled using the following equation:

[tex]TotalTime=t_{upstream}+t_{downstream}\\\\TotalTime=6hours+3hours=9hours[/tex]

Therefore we have that the total time traveled is equal to 9 hours.

Have a nice day!

Answer:

A. .350-.359

Step-by-step explanation:

It has the highest frequency of all the ranges (14).

Answer: [tex]0.350-0.359[/tex]

Step-by-step explanation:

From the given table, it can be seen that the largest frequency in the data table = 14

Thus, there are 4=14 players which have the common range.

The range corresponding to the frequency 14 = [tex]0.350-0.359[/tex]

Hence, the range of batting averages which was the most common among the players = [tex]0.350-0.359[/tex]

Answer:

c. none of the above

Step-by-step explanation:

(-6+3)= -3

2--3=2+3=5

5+4c cant add them since they arent like terms

final answer 5+4c and that option isnt here

You can sum like terms:

[tex]d+3d=4d[/tex]

The equation becomes

[tex]4d = 6[/tex]

Divide both sides by 4:

[tex]d=\dfrac{6}{4}=\dfrac{3}{2}[/tex]

Answer:

75 degrees

Step-by-step explanation:

The two marks on the triangle sides mean they are the same length (congruent).  Because of the Isosceles Triangle Theorem, the angles across from those two congruent sides are also congruent.  That means that angle C also measures 3x.  Because all the sides of a triangle add up to equal 180, then (x+5) + 3x + 3x = 180.  7x + 5 = 180, and 7x = 175.  That means that x = 25.  Take that 25 and sub it into 3x to get 3(25) = 75 degrees.

What’s a brainliest sorry I can’t help

This relation is a function because a function [tex]f[/tex] from a set [tex]A[/tex] to a set [tex]B[/tex] is a relation that assigns to each element [tex]x[/tex] in the set [tex]A[/tex] exactly one element [tex]y[/tex] in the set [tex]B[/tex]. The set [tex]A[/tex] is the domain (also called the set of inputs) of the function and the set [tex]B[/tex] contains the range (also called the set of outputs). So we have that:

[tex]\left[\begin{array}{cc}x & y\\1 & 0\\2 & 4\\3 & 8\\4 & 12\end{array}\right][/tex]

We have plotted all the points below. As you can see, this is a linear function. Therefore, with two points we can get the equation, so:

[tex]The \ equation \ of \ the \ line \ with \ slope \ m \\ passing \ through \ the \ point \ (x_{1},y_{1}) \ is:\\ \\ y-y_{1}=m(x-x_{1}) \\ \\ \\ y-0=\frac{4-0}{2-1}(x-1) \\ \\ y=4(x-1) \\ \\ y=4x-4 \\ \\ \\ Where: \\ \\ (x_{1},y_{1})=(1,0) \\ \\ (x_{2},y_{2})=(2,4)[/tex]

Finally, the equation is:

[tex]\boxed{y=4x-4}[/tex]

Part A) the first and the third answer are equivalent because.

n+n+n+n+2= 4n+2 which is the same as the third answer.

Part B) 2 and 4 are not equivalent because

2) n+n+n+2= 3n+2

4) 2n+2n+2n= 6n

as we can see they are not the same. Therefore they are not equivalent.

hope this helps

Answer:

7 times

Step-by-step explanation:

5 times 5 is 25 so 5 times 7 is 35 and thats the answer

so we are using some conversions here

so first convert 30,360ft=?miles

we are going to use

division like SBD

silly babies dancing an example ofc so it means small to big,divide so,

30,360ft÷5,280=5.75miles

5,280 is how many ft are in a mile.:)

so no,Morgan wasn't over 6 miles

To determine if Morgan was over 6 miles above the ground, we must convert the altitude from feet to miles by dividing by 5,280 (the number of feet in a mile). This computation shows us that Morgan was indeed over 6 miles high.

Yes, Morgan was over 6 miles above the ground. In order to solve this problem, we need to know that 1 mile equals 5,280 feet. Thus, first, we have to convert the altitude in feet into miles. We do this by dividing the number of feet by the number of feet in a mile.

30,360 feet / 5,280 feet per mile = 5.75 miles

Hence, Morgan was indeed flying at an altitude greater than 6 miles above the ground.

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Answer:

√34

Step-by-step explanation:

3²+5²=9+25=34

√34=√34 because 34 cannot be simplified because no perfect square go into it

Answer:

50

Step-by-step explanation:

first the power 5^2 = 25 then the multiply 7*3 = 21 and then the addition

25+21+4= 25+25 = 50  

Hey there!

5^2 + 7 * 3 + 4

= 5 * 5 + 21 + 4

= 25 + 21 + 4

= 46 + 4

= 50

Therefore, your answer is: 50

Good luck on your assignment and enjoy your day!

~Amphitrite1040:)

Answer:

Part 1) The length of each side of the square is about 4.47 units

Part 2) The length of its diagonal is about 6.32 units

Step-by-step explanation:

Part 1)

Find the length of each side of the square

In the right triangle TPQ

Applying the Pythagoras Theorem

[tex]TQ^{2}=PQ^{2}-TP^{2}[/tex]

substitute the given values

[tex]TQ^{2}=6^{2}-4^{2}[/tex]

[tex]TQ^{2}=36-16[/tex]

[tex]TQ^{2}=20[/tex]

[tex]TQ=2\sqrt{5}\ units[/tex] -----> exact value

[tex]TQ=4.47\ units[/tex] -----> approximate value

Part 2)

Find the length of the diagonal of the square

Applying the Pythagoras Theorem

[tex]TR^{2}=TQ^{2}+QR^{2}[/tex]

we have

[tex]TQ=QR[/tex]

[tex]TQ=2\sqrt{5}\ units[/tex]

substitute

[tex]TR^{2}=(2\sqrt{5})^{2}+(2\sqrt{5})^{2}[/tex]

[tex]TR^{2}=40[/tex]

[tex]TR=2\sqrt{10}\ units[/tex] -----> exact value

[tex]TR=6.32\ units[/tex] ----> approximate value

Answer:

First box is 4.5 units and the second box is 6.3 units.

Step-by-step explanation: Correct Plato answer.

Answer:

[tex]f(x)=\frac{1}{2}Cos(\frac{1}{4}x)-1[/tex]

Step-by-step explanation:

Consider the function f(x) = cos x. Noted below are the points of transformations of the cos function

Considering the points above, we can now write down the "transformed" cosine function's equation:

f(x) = [tex]\frac{1}{2}Cos(\frac{1}{4}x)-1[/tex]

Answer:

Hope this helps :)

Step-by-step explanation:

Answer:

Step-by-step explanation:

We have a square with the side a = 18m and a triangle with the base

b = 18m + 8m = 26m and height h = 16m.

The formula of an area of a square:

[tex]A_{\square}=a^2[/tex]

The formula of an area of a triangle:

[tex]A_{\triangle}=\dfrac{bh}{2}[/tex]

Substitute:

[tex]A_{\square}=18^2=324\ m^2\\\\A_{\triangle=\dfrac{(26)(16)}{2}=(26)(8)=208\ m^2[/tex]

The area of figure:

[tex]A=A_{\square}+A_{\triangle}\\\\A=324\ m^2+208\ m^2=532\ m^2[/tex]

Answer:

$3,750

Step-by-step explanation:

Find how much 3% of 125,000 is.  Divide 3 by 100 and then multiply that by 125,000.  You get 3,750, which is how much interest Moran will earn.

Answer:

[tex]\large\boxed{r_{y-axis}(x,\ y)\to(-x,\ y)}[/tex]

Step-by-step explanation:

[tex]L(-6,\ 2)\to L'(-(-6),\ 2)\to L(6,\ 2)\\\\M(-5,\ 4)\to M'(-(-5),\ 4)\to M'(5,\ 4)\\\\N(-3,\ 2)\to N'(-(-3),\ 2)\to N'(3,\ 2)\\\\\bold{Conclusion:}\\\\r_{y-axis}(x,\ y)\to(-x,\ y)[/tex]

The rule of reflection for the triangle is Ry ( x , y ) → ( -x , y )

Reflection is a type of transformation that flips a shape along a line of reflection, also known as a mirror line, such that each point is at the same distance from the mirror line as its mirrored point. The line of reflection is the line that a figure is reflected over. If a point is on the line of reflection then the image is the same as the pre-image. Images are always congruent to pre-images.

The reflection of point (x, y) across the x-axis is (x, -y). When you reflect a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is taken to be the additive inverse. The reflection of point (x, y) across the y-axis is (-x, y).

Given data ,

Let the triangle be represented as ΔMLN

Now , the coordinates of the triangle are

The coordinate of M = M ( -5 , 4 )

The coordinate of L = L ( -6 , 2 )

The coordinate of N = N ( -3 , 2 )

when the triangle is reflected across the y-axis, the y-coordinate remains the same, but the x-coordinate is taken to be the additive inverse.

The reflection of point (x, y) across the y-axis is (-x, y).

So , the coordinate of M' = M' ( 5 , 4 )

The coordinate of L' = L' ( 6 , 2 )

The coordinate of N' = N' ( 3 , 2 )

Hence , the rule of reflection is Ry ( x , y ) → ( -x , y )

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Answer:

x = √41  units

Step-by-step explanation:

Half the base length

= 8 ÷ 2

= 4

x² = 4² + 5²

x² = 16 + 25

x² = 41

x = √41

Answer:

x = sqrt(41)

Step-by-step explanation:

We have a right triangle with height 5 and a base that is 1/2 of 8 = 4

We can use Pythagorean theorem

a^2 + b^2 = c^2 to find the length of the hypotenuse

5^2 + 4^2 = x^2

25+16 = x^2

41 = x^2

Take the square root of each side

sqrt(41) = x

Answer: a= 16

Step-by-step explanation:

We have the following expression:

[tex](y-4)(y^2 +4y +16)[/tex]

To find the value of the coefficient "a" you must use the distributive property to multiply the expression:

[tex](y-4)(y^2 +4y +16)[/tex]

until you transform it to the form:

[tex]y^3 +4y^2 +ay -4y^2 -ay-64[/tex]

Then we have

[tex](y-4)(y^2 +4y +16)\\\\(y^3 +4y^2 +16y -4y^2 -16y-64)\\\\[/tex]

Therefore the value of a in the polynomial is 16

[tex] \sqrt{9} + \sqrt{9} + \sqrt{9} + \sqrt{9} [/tex]

3+3+3+3

=18

hope that helped you

Answer: 18

Step-by-step explanation:

square root of 9 equals 3+3+3+3+3+ = 18 (3x6)

there are no real square roots of 25,36

Answer:

Yes, if the first term of a geometric sequence is positive and r > 1, then the sequence increases

Step-by-step explanation:

* Lets talk about the geometric sequence

- There is a constant ratio between each two consecutive numbers

- Ex:

# 5  ,  10  ,  20  ,  40  ,  80  ,  ………………………. (×2)

# 5000  ,  1000  ,  200  ,  40  ,  …………………………(÷5)

* General term (nth term) of a Geometric sequence:

# U1 = a  ,  U2  = ar  ,  U3  = ar2  ,  U4 = ar3  ,  U5 = ar4

# Un = ar^n-1, where a is the first term , r is the constant ratio

  between each two consecutive terms, and n is the position of

 the number in the sequence

- V.I.N: The position of the number means the place of the

 number like first , second , third , .......... so n must be positive integer

* Lets talk about the ratio r

- If r greater than 1 and a is positive, the sequence increases lets

 take some different examples to explain that

# If the first term is 2 and the ratio between the consecutive

  terms is 3/2, then the first four terms in the sequence are

∵ a = 2

∵ r = 3/2 ⇒ greater than 1

∴ First = a = 2

∴ Second = ar = 2 × 3/2 = 3

∴ Third = ar² = 2 × (3/2)² = 2 × 9/4 = 9/2 4.5

∴ Fourth = ar³ = 2 × (3/2)³ = 2 × 27/8 = 27/4 = 6.75

- From the answers the sequence increases

# If the first term is 1/2 and the ratio between the consecutive

  terms is 4/3, then the first four terms in the sequence are

∵ a = 1/2

∵ r = 4/3 ⇒ greater than 1

∴ First = a = 1/2

∴ Second = ar = 1/2 × 4/3 = 2/3 ⇒ 2nd > 1st

∴ Third = ar² = 1/2 × (4/3)² = 2 × 16/9 = 8/9 ⇒ 3rd > 2nd

∴ Fourth = ar³ = 1/2 × (4/3)³ = 2 × 64/27 = 32/27 ⇒ 4th > 3rd

- From the answers the sequence increases

* Now we are sure if the first term of a geometric sequence is

 positive and r > 1, then the sequence increases

Answer:

The given statement is TRUE.

Step-by-step explanation:

We are given that if the first term of a geometric sequence is positive, and r>1, then the sequence increases which is true.

If the first term of any geometric sequence is positive and its common ratio ( r ) is greater than 1 then the sequence will always increase.

[tex] a _ n = a r ^ n - 1 [/tex]

Answer:

[tex]\$2,966.85[/tex]  

Step-by-step explanation:

we know that

The formula to calculate continuously compounded interest is equal to

[tex]A=P(e)^{rt}[/tex]  

where  

A is the Final Investment Value  

P is the Principal amount of money to be invested  

r is the rate of interest in decimal  

t is Number of Time Periods  

e is the mathematical constant number

we have  

[tex]t=15\ years\\ P=\$1,000\\ r=0.0725[/tex]  

substitute in the formula above  

[tex]A=\$1,000(e)^{0.0725*15}=\$2,966.85[/tex]  

Final answer:

The total amount for a $1000 investment at 7.25% compounded continuously for 15 years is approximately $2972.70, demonstrating the power of compound interest.

Explanation:

To calculate the total amount from an investment that is compounded continuously, you use the formula for continuous compounding, which is A = Pert, where A is the amount of money accumulated after n years, including interest, P is the principal amount (the initial sum of money), r is the annual interest rate (decimal), t is the time the money is invested for, and e is the base of the natural logarithm, approximately equal to 2.71828.

Substituting our values into this formula we get:
A = 1000 * e0.0725*15
A ≈ 1000 * e1.0875
A ≈ 1000 * 2.9727
A ≈ $2972.70

This result shows us the power of compound interest and highlights starting to save money early in life as a key financial decision.

Answer:

57 4/5

Step-by-step explanation:

Add 5 and 14

5+14 = 19

Triple the sum

3 * 19 = 57

The add 4/5

57 + 4/5

57 4/5

Answer:

0.45

Step-by-step explanation:

Brainiest please!

Answer: 15.8 Women out of 1,000 have tissue abnormalities.

Step-by-step explanation:

It's pretty simple, all you need to do is set up a proportion with the variables you already have

63/3980 = x/1000

Do Cross products so

63000=3980x

Divide both sides by 3980 to get x by itself and you get 15.82914573 which reduced to 1 decimal is 15.8

Answer:

Answer is 16

Step-by-step explanation:

Given that for the population of women whose mothers took the drug DES during pregnancy, a sample of 3980 women showed that 63 developed tissue abnormalities that might lead to cancer.

From the given information, we find the proportion of women who took the drug and developed tissue abnormalities

Proportion p = [tex]\frac{63}{3980} =0.015829[/tex]

Assuming the same proportion continues constantly for any population, we find

the number of women out of 1,000 in this population who have tissue abnormalities, estimated = [tex]1000(0.015829)\\=15.829\\=16[/tex]