HEEEEEEELLLLLLPPPPPPPP!!!!!!!!!!

Brian and Ted used the equation 17=d+12 to find d, the money Ted needed so that he had the same amount of money as Brian.

Which equation explains the process Brian and Ted could have used to find d?
A. 17 - 17 = d + 12 - 17
B. 17 + 17 = d + 12 + 17
C. 17 - 12 = d + 12 - 12
D. 17 + 12 = d + 12 + 12

Answer: read below

Step-by-step explanation: 5+5=10-9=1x69= Baby

Answer:

(D.) 6h + 26 > 80

Step-by-step explanation:

$6 an hour + the $26 > the $80 needed to buy the skis

The inequality represents the number of hours (h) Linda could babysit to earn at least enough money to buy the ski pass is 6h+26>80. Therefore, option D is the correct answer.

Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.

Given that, Linda has $26. She wants to buy a ski pass for $80.

Let the number of hours Linda worked in babysitting be h.

Now, the inequality is

6h+26>80

The inequality represents the number of hours (h) Linda could babysit to earn at least enough money to buy the ski pass is 6h+26>80. Therefore, option D is the correct answer.

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Answer:

about $63

Step-by-step explanation:

Answer:

[tex]0.5x-42.15>20[/tex]

Step-by-step explanation:

Let x represents the amount of Alicia’s paycheck.

Alicia set aside the other half to take her friends out to dinner. That means she took 0.5x with her for dinner.

She spent 42.15 on dinner and brought home more than 20.00.

So, the inequality will be :

[tex]0.5x-42.15>20[/tex]

Solving for x;

=> [tex]0.5x>20+42.15[/tex]

=> [tex]0.5x>62.15[/tex]

x > 124.30

Answer:

• cos(α/2) = (4/17)√17

• sin(α/2) = (√17)/17

Step-by-step explanation:

The appropriate hαlf-angle identities are:

sin(α/2) = √((1 -cos(α))/2)

cos(α/2) = √((1 +cos(α))/2)

Putting in your given values for cos(α), we have ...

cos(α/2) = √((1 +15/17)/2) = √(16/17) = 4(√17)/17

sin(α/2) = √((1 -15/17)/2) = √(1/17) = (√17)/17

Answer:

The answer would be D., 15t + 4 dollars.

Step-by-step explanation:

All you have to do is add the like terms.  So, do 8t + 7t which equals 15t.  Next, do -1 + 5, which equals 4.  So, 15t + 4 dollars.  Hope this helps!

Answer:

D. 15t + 4 dollars

Step-by-step explanation:

To be able to know the sum of the two days you just have to add them.

7t-1 +(8t+5)=

7t+8t=15t

-1+5=4

The sum of the two days is 15t+4 and this is the total earnings that you are supposedly made on Monday and Tuesday.

Answer:

a = 1, b = 7

Step-by-step explanation:

Given the 2 equations

3a + 6b = 45 → (1)

2a - 2b = - 12 → (2)

Multiply (2) by 3 and add to (1) to eliminate the term in b

6a - 6b = - 36 → (3)

Add (1) and (3) term by term

(3a + 6a) + (6b - 6b) = (45 - 36)

9a = 9 ( divide both sides by 9 )

a = 1

Substitute a = 1 in either (1) or (2) and solve for b

(1) → 3 + 6b = 45 ( subtract 3 from both sides )

6b = 42 ( divide both sides by 6 )

b = 7

Answer:

B.

Step-by-step explanation:

Perpendicular lines always intercept at a right angle (90 degrees).

Answer:

b. lines that meet at a 90 angle

Step-by-step explanation:

Perpendicular lines are lines that intersect at a right (90 degrees) angle.

So, the correct answer is b. lines that meet at a 90 angle.

If you want to know if two equations are perpendicular, take their slopes. The slopes of perpendicular lines are opposite reciprocals of each other.

Answer:

Step-by-step explanation:

Zero in on the highest power of x.  It's 4.  Thus, this polynomial is of the 4th degree.

Note:  Please use " ^ " to indicate exponentiation:

-2x^4 - x^3 + 8x^2 - 12

The equation -2x^4 - x^3 + 8x^2 = 12 is a 4th degree polynomial because the highest power of the variable is 4.

The equation given is a polynomial equation, and polynomials are classified by degree, which is the highest power of the variable. In the given equation -2x4 - x3 + 8x2 = 12, we can see that the highest power is 4, which is the degree of the x variable. Thus, this equation is a 4th degree polynomial equation.

The variable with the highest degree is used to classify the polynomial. In this case, the variable x has the highest degree, making it a 4th degree polynomial. The value of the degree helps us to understand the shape of the graph of the equation. In this case, a 4th degree polynomial could have 0, 2, or 4 real roots and the graph can have 2 turning points.

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Answer:

The pizza price after discount is $10.20

Step-by-step explanation:

turn 15% to decimal

0.15

multiply by $12 to find how much 15% of 15 is

12 x 0.15 = 1.8

know subtract the discount [$1.8]

12 - 1.8 = 10.2

$10.20

Hope this helped! Please mark as brainliest! Thanks!

Answer:

You can subtract the discount percent from 100% and then multiply that by the original price.

Steps

1. Subtract the discount percent from 100%.

2. 100% – 15% = 85%

3. Multiply the original price by this percent.

4. The discounted price is $10.20.

Answer:

Identify the slope, m. This can be done by calculating the slope between two known points of the line using the slope formula.

Find the y-intercept. This can be done by substituting the slope and the coordinates of a point (x, y) on the line in the slope-intercept formula and then solve for b.

Step-by-step explanation:

The general formula is y = mx +b.

m = slope.

b = y-intercept of the line  

For this case we must simplify the following expression:

[tex]\sqrt [3] {\frac {12x ^ 2} {16y}}[/tex]

We rewrite the expression as:

[tex]\sqrt[3]{\frac{4(3x^2)}{4(4y)}}=\\\sqrt[3]{\frac{4(3x^2)}{4(4y)}}=\\\frac{\sqrt[3]{3x^2}}{\sqrt[3]{4y}}=[/tex]

We multiply the numerator and denominator by:

[tex](\sqrt[3]{4y})^2:\\\frac{\sqrt[3]{3x^2}*(\sqrt[3]{4y})^2}{\sqrt[3]{4y}*(\sqrt[3]{4y})^2}=[/tex]

We use the rule of power[tex]a ^ n * a ^ m = a ^ {n + m}[/tex] in the denominator:

[tex]\frac{\sqrt[3]{3x^2}*(\sqrt[3]{4y})^2}{(\sqrt[3]{4y})^3}=\\\frac{\sqrt[3]{3x^2}*(\sqrt[3]{4y})^2}{4y}=[/tex]

Move the exponent within the radical:

[tex]\frac{\sqrt[3]{3x^2}*(\sqrt[3]{16y^2}}{4y}=\\\frac{\sqrt[3]{3x^2}*(\sqrt[3]{2^3*(2y^2)}}{4y}=[/tex]

[tex]\frac{2\sqrt[3]{3x^2}*(\sqrt[3]{(2y^2)}}{4y}=\\\frac{2\sqrt[3]{6x^2*y^2}}{4y}=[/tex]

[tex]\frac{\sqrt[3]{6x^2*y^2}}{2y}[/tex]

Answer:

[tex]\frac{\sqrt[3]{6x^2*y^2}}{2y}[/tex]

Answer: choice D

Step-by-step explanation: took it on edge

Final answer:

The car's average speed over the course of 5 days for a distance of 2359 miles was approximately 19.66 mph, which rounds to 20 mph.

Explanation:

To calculate the car's average speed in miles per hour, you divide the total distance traveled by the total time taken. In this case, the car traveled 2359 miles over the course of 5 days. Since there are 24 hours in a day, the total time in hours is 5 days multiplied by 24 hours per day.

Total time in hours = 5 days × 24 hours/day = 120 hours

Now we calculate the average speed using the formula:

Average speed = Total distance / Total time

Average speed = 2359 miles / 120 hours

When calculated, the average speed is approximately 19.66 miles per hour. Rounding to the nearest mile per hour gives us an average speed of 20 mph.

The answer to this question is the 3rd on (b)

Answer:

the answer is B or C

Step-by-step explanation:

i hope this some what helps

[tex]\frac{35}{50}=\frac{m}{10}[/tex]   Multiple 10 on both sides to get m by itself

[tex](10)\frac{35}{50}=\frac{m}{10}(10)[/tex]

[tex]\frac{350}{50}=m[/tex]  Simplify

7 = m

First, cross multiply

35 * m = 50 * 10

35m = 500

Then, Divide both sides by 35

m = 500 / 35

m = 14[tex]\frac{2}{7}[/tex] or 14.29

Answer:

0

Step-by-step explanation:

Harry gave away 3/6, or half of the brownies

1/6 plus 2/6 equals 3/6

Harry gave away 3/6 or 1/3 fractions of the pan to his mom and his brother.

Harry baked a pan of brownies for his brother=1/6

Harry baked a pan of brownies for his mom=2/6

Total pan of brownies harry gave = 1/6+2/6

                                                          3/6=1/3

Problem-solving is the act of defining a problem; figuring out the purpose of the trouble; identifying, prioritizing, and selecting alternatives for an answer; and imposing an answer.

Problem-solving starts with identifying the issue. As an example, a trainer may need to parent out a way to improve a scholar's overall performance on a writing talent test. To do that, the instructor will overview the writing exams looking for regions for improvement.

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Answer:

16682.7 cm³

Step-by-step explanation:

The total volume is the volume of the cone plus half the volume of a sphere:

V = ⅓ π r² h + ½ (4/3 π r³)

V = ⅓ π r² h + ⅔ π r³

V = ⅓ π r² (h + 2r)

Given that r = 4.15 cm and h = 10.2 cm:

V = ⅓ π (4.15)² (10.2 + 2×4.15)

V ≈ 333.65

The volume needed for 50 cones is therefore:

50V ≈ 16682.7 cm³

Answer:

X= 20

Step-by-step explanation:

4x + 8 = 88

4x +8 - 8 = 88 - 8

4x = 80

4x/4 = 80/4

X = 20

For this case we must find the value of "x" of the following linear equation:

[tex]4x + 8 = 88[/tex]

We subtract 8 on both sides of the equation:

[tex]4x = 88-8\\4x = 80[/tex]

We divide between 4 on both sides of the equation:

[tex]\frac {4x} {4} = \frac {80} {4}\\x = 20[/tex]

So, the value of x is 20

Answer:

[tex]x = 20[/tex]

Answer:

The Metric System

Step-by-step explanation:

Answer:

The metric system

Step-by-step explanation:

Because the exact definition is "the decimal measuring system based on the meter, liter, and gram as units of length, capacity, and weight or mass. The system was first proposed by the French astronomer and mathematician Gabriel Mouton (1618–94) in 1670 and was standardized in France under the Republican government in the 1790s." therefore it would be the metric system because it uses different lengths

Answer:The answer is D. .116 fr Plato

The probability that If a person is selected at random the person is taller than 180 centimeters and has black hair is 0.116.

The probability helps us to know the chances of an event occurring.

[tex]\rm{Probability=\dfrac{Desired\ Outcomes}{Total\ Number\ of\ outcomes\ possible}[/tex]

The number of people who are having black hair and are taller than 180 cm is 29. And the total number of employees in the company is 250. Therefore, the probability that the person is taller than 180 centimeters and has black hair can be written as,

[tex]\rm Probability=\dfrac{\text{Number of people with black hair and taller than 180 cm}}{\text{Total number of employees in the company}}\\\\\\Probability = \dfrac{29}{250} = 0.116[/tex]

Thus,  the probability that If a person is selected at random the person is taller than 180 centimeters and has black hair is 0.116.

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Answer:

C) 0.5

Step-by-step explanation:

Since DE is parallel to AB, angle FDE = ABF and  DEF = angle FAB

In fact, both triangles (ABF and DEF) are similar to each other because their interior angles are identical.

So, if sin(A) = 0.5, sin(E) = 0.5 too.

Answer:

C.  

0.5

Step-by-step explanation:

The answer is:

The domain of the function is all the real numbers except the number 13:

Domain: (-∞,13)∪(13,∞)

This is a composite function problem. To solve it, we need to remember how to composite a function. Composing a function consists of evaluating a function into another function.

Composite function is equal to:

[tex]f(g(x))=(f\circ} g)(x)[/tex]

So, the given functions are:

[tex]f(x)=x+7\\\\g(x)=\frac{1}{x-13}[/tex]

Then, composing the functions, we have:

[tex]f(g(x))=\frac{1}{x-13}+7\\[/tex]

Therefore, we must remember that the domain are all those possible inputs where the function can exists, most of the functions can exists along the real numbers with no rectrictions, however, for this case, there is a restriction that must be applied to the resultant composite function.

If we evaluate "x" equal to 13, the denominator will tend to 0, and create an indetermination since there is no result in the real numbers for a real number divided by 0.

So, the domain of the function is all the real numbers except the number 13:

Domain: (-∞,13)∪(13,∞)

Have a nice day!

Hello,

You're asking: (3^5−3^4)(3^3+3^2)/24.

First, start with the three. (3^5)

(243−3^4)(3^3+3^2)/24

Do the 3 to the power of 4.

(243−81)(3^3+3^2)

Subtract 243-81 to 162.

162(3^3+3^2)/24

Do 3^3 to get 27.

162(27+32)/24

Then, do 3^2 to 9.

162(27+9)/24.

Add 27+9 to get 36 then set up multiplication.

(162)(36)/24

Multiply.

5832/24

Divide.

Therefore, you get 243 as your final answer.

Answer:

[tex]\frac{cos^2(\frac{\pi}{2}-x)}{\sqrt{1-sin^2(x)}}=\frac{sin^2(x)}{|cos(x)|}[/tex]

Step-by-step explanation:

To simplify this expression you must use the following trigonometric identities

[tex]cos(\frac{\pi}{2}-x) = sinx[/tex]     I

[tex]1-sin (x) ^ 2 = cos ^ 2(x)[/tex]      II

Remember that

[tex]\sqrt{f(x)^2} =f(x)[/tex]

Only if [tex]f(x)> 0[/tex]  for all x

If f(x) is not greater than 0 for all x then

[tex]\sqrt{f(x)^2} =|f(x)|[/tex]

Now we have the expression:

[tex]\frac{cos^2(\frac{\pi}{2}-x)}{\sqrt{1-sin^2(x)}}[/tex]

then using the trigonometric identities I and II we have to:

[tex]\frac{cos^2(\frac{\pi}{2}-x)}{\sqrt{1-sin^2(x)}}=\frac{sin^2(x)}{\sqrt{1-sin^2(x)}}\\\\\\\frac{sin^2(x)}{\sqrt{1-sin^2(x)}}= \frac{sin^2(x)}{\sqrt{cos^2(x)}}[/tex]

[tex]cos(x)[/tex] is not greater or equal than 0 for all x. So.

[tex]\frac{sin^2(x)}{\sqrt{cos^2(x)}}=\frac{sin^2(x)}{|cos(x)|}[/tex]

Finally  

[tex]\frac{cos^2(\frac{\pi}{2}-x)}{\sqrt{1-sin^2(x)}}=\frac{sin^2(x)}{|cos(x)|}[/tex]

Answer:

k = 13

smallest zero = -6

Step-by-step explanation:

f(x) is basically the function of x.

x could be any integer. f(x) is the solution of the function of x.

f(x) is defined as x² + 3x - 10

f(x) = x² + 3x - 10

Now, f(x+5) = x² + kx + 30

This statement here says that if the value of x is x+5, then the answer would be x² + kx + 30.

f(x) = x² + 3x - 10

f(x+5) = (x+5)² + 3(x+5) - 10

f(x+5) = x² + 10x + 25 + 3x + 15 - 10

f(x+5) = x² + 13x + 40 - 10

f(x+5) = x² + 13x + 30

x² + 13x + 30 = x² + kx + 30

hence, k = 13

Smallest zero = The smallest x value.

f(x+5) = x² + 13x + 30

Let's take f(x+5) = 0

x² + 13x + 30 = 0

which two numbers products give us 30 and add up to 13?

== 6 and 5

(x+6)(x+5) = 0

x+6 = 0

x = -6

x+5 = 0

x = -5

The two solutions are -6 and -5

The smallest out of these two is -6.  

Answer:

The rock will take about 4.5 seconds to reach the river

Step-by-step explanation:

* lets study the situation of the rock

- The rock is dropped means the initial velocity is zero

- The motion is free fall under earth gravity

- The rock dropped from a bridge 320 feet above the river

- The equation of the pathway is h = -16t² + 320

- When the rock reach to the ground the height will be zero

* Now lets substitute h by zero in the equation to find t

∵ h = -16t² + 320

∵ h = 0

∴ 0 = -16t² + 320 ⇒ add 16t² to both sides

∴ 16t² = 320 ⇒ divide both sides by 16

∴ t² = 320/16 = 20

∴ t² = 20 ⇒ take √ for both sides

∴ t = √20 = 2√5 ≅ 4.5 seconds

* The rock will take about 4.5 seconds to reach the river

The final answer is D: 4.5 seconds.

let's go through the solution in more detail.

Given the equation [tex]\( h = -16t^2 + 320 \)[/tex], where [tex]\( h \)[/tex] represents the height of the rock above the river at time [tex]\( t \),[/tex] we're trying to find out when the rock reaches the river, which means its height will be 0.

So, we set [tex]\( h \)[/tex] to 0:

[tex]\[ 0 = -16t^2 + 320 \][/tex]

To solve for [tex]\( t \),[/tex] we isolate [tex]\( t \)[/tex] by moving [tex]\( -16t^2 \)[/tex] to the other side of the equation:

[tex]\[ 16t^2 = 320 \][/tex]

Now, to solve for [tex]\( t \),[/tex] we divide both sides by 16:

[tex]\[ t^2 = \frac{320}{16} \]\[ t^2 = 20 \][/tex]

To find [tex]\( t \),[/tex] we take the square root of both sides:

[tex]\[ t = \sqrt{20} \][/tex]

Now, let's simplify [tex]\( \sqrt{20} \):[/tex]

[tex]\[ \sqrt{20} = \sqrt{4 \times 5} \]\[ \sqrt{20} = \sqrt{4} \times \sqrt{5} \]\[ \sqrt{20} = 2\sqrt{5} \][/tex]

Approximately, [tex]\( \sqrt{5} \)[/tex] is around 2.24, so [tex]\( 2\sqrt{5} \)[/tex] is approximately [tex]\( 2 \times 2.24 \),[/tex] which is approximately 4.48.

So, it will take approximately 4.5 seconds for the rock to reach the river.

Therefore, the correct answer is option D: 4.5 seconds.

Answer:

36

Step-by-step explanation:

Add up all the numbers and divide by 1/4

Answer:

34+2

Step-by-step explanation:

Answer:

2/3 of a cup

Step-by-step explanation:

One third of a dozen = 4.

The recipe yields 24.

24 ÷ 4 = 6.

4 cups ÷ 6 = 2/3 of a cup

Answer:

D.

Step-by-step explanation:

First figure: 2 dots by 1 dot

Second figure: 3 dots by 2 dots

Third figure: 4 dots by 3 dots

The numbers of dots are going up by one both horizontally and vertically, so I expect the next one to be

Fourth figure: 5 dots by 4 dots which is option D.

The next term of the given series 2,6,12, ( after converting the dots into numbers ) is 20.

A series is an arrangement of real numbers which follows some pattern. We can also say a series is a function from set of natural number to a particular set of numbers.

We can write the series mathematically as

2, 6,12,

which is equivalent to 2, 2²+2, 3²+3 etc

In this process the next term will be 4²+4, which is equal to 16+4=20

Therefore the next term will be 20.

Hence the next step of the given series will be 20.

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Answer:

0

Step-by-step explanation:

quotient means to divide

4/0=0

The answer is 0

4 divided by 0 is 0