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3 years ago

Extra points! Please just show me how to set this up so I can solve, I don't need the answer. Thank you!

Mathematics

1 answer:

GREYUIT [131]3 years ago

4 0

Answer:

Step-by-step explanation:

Think of of this as a function in which the number of pounds is a function of the number of hours. Each piece of given information is a point. Each point has the format (x, y) = (hours, pounds), where hours is x and is the independent variable, and pounds is y and is the dependent variable.

You have two points (4.5, 1445) and (7, 2320). First find the slope of the line that passes through those two points. Use the slope formula,

m = (y2 - y1)/(x2 - x1).

Then using the slope and the point-slope equation of a line, find the equation of the line. The point-slope equation of a line is

y - y1 = m(x - x1),

where m = slope, and the point is (x1, y1).

Try it. If you have questions or need extra help, just comment.

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What is the exact length of AB?<br> 4 m<br> 8 mm<br> m<br> 2 TT m

dalvyx [7]

Answer:

The answer is

$\pi$

if I am not wrong

Step-by-step explanation:

First you need to convert 45 degress to radians,then you use the arc length formula which is = thr radius * the angle to get the answer

5 0

3 years ago

Suppose that f(1=9, f(4=?3, f?(1=9, f?(4=?5, and f?? is continuous. find the value of ?41xf??(xdx.

Over [174]

Some characters in your question are not displayed properly, so I'm guessing at what it says.

"Suppose that $f(1)=9$ , $f(4)=-3$ , $f'(1)=9$ , $f'(4)=-5$ , and $f''$ is continuous. Find the value of $\displaystyle\int_1^4xf''(x)\,\mathrm dx$ ."

(Correct me if I'm wrong!)

Integrate by parts, letting $u=x$ and $\mathrm dv=f''(x)\,\mathrm dx$ , so that $\mathrm du=\mathrm dx$ and $v=f'(x)$ . Then you have

$\displaystyle\int_1^4xf''(x)\,\mathrm dx=xf'(x)\bigg|_{x=1}^{x=4}-\int_1^4f'(x)\,\mathrm dx$

Integrating once more gives

$\displaystyle\int_1^4xf''(x)\,\mathrm dx=xf'(x)\bigg|_{x=1}^{x=4}-f(x)\bigg|_{x=1}^{x=4}$
$=(4f'(4)-1f'(1))-(f(4)-f(1))$
$=(-20-9)-(-3-9)=-17$

8 0

3 years ago

Write and solve a math problem in which you need to find how many equal groups

Vlad1618 [11]

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3 years ago

Two angels are supplementary. The measure of the large angle is four more than three times the measure of the small angle. Find

sashaice [31]

Answer:

The measure of the two supplementary angles is

Small angle = x = 44°

Large angle = y = 136

Step-by-step explanation:

Supplementary angles are two angles whose measures add up to 180° .

Let

Small angle = x

Large angle = y

x + y = 180°.... Equation 1

The measure of the large angle is four more than three times the measure of the small angle

Hence: y = 4 + 3x

We substitute 4 + 3x for y in Equation 1

x + 4 + 3x = 180°

4x + 4 = 180°

4x = 180° - 4

4x = 176

x = 176/4

x = 44°

Solve for y

y = 4 + 3x

y = 4 + 3(44)

y = 4 + 132

y = 136°

Therefore, the measure of the two supplementary angles is

Small angle = x = 44°

Large angle = y = 136

5 0

3 years ago