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Norma-Jean [14]

4 years ago

14

HELP ASAP WILL GIVE BRAINLIESET A regulation basketball has a diameter of 9.4 inches. What is the volume of the ball? A) 19.69 i

n3 B) 92.53 in3 C) 434.89 in3 D) 3479.14 in3

1 answer:

Arlecino [84]4 years ago

5 0

The shape of a basket ball is like sphere so use the formula of sphere vol.= 4/3*pie*r3 find the radius by r=D/2

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I need someone to help me do this, see attached documents for the questions

Brilliant_brown [7]

Answer:

<u><em>1.) 20.2</em></u>

Step-by-step explanation:

1.) You need to use the distance formula:

$d=\sqrt{(x_{2}-x_{1})^2+(y_{2}-y_{1})^2}$

Find the distance of A to B first:

$(-2,2)(3,2)\\\\\sqrt{(3+2)^2+(2-2)^2}\\\\\sqrt{(5)^2+(0)^2}\\\\\sqrt{25} =5$

B to C:

$(3,2)(-1,-5)\\\\\sqrt{(-1-3)^2+(-5-2)^2}\\\\\sqrt{(-4)^2+(-7)^2}\\\\\sqrt{16+49}\\\\\sqrt{65} =8.06=8.1$

C to A:

$(-1,-5)(-2,2)\\\\\sqrt{(-2+1)^2+(2+5)^2}\\\\\sqrt{(-1)^2+(7)^2}\\\\\sqrt{1+49}\\\\\sqrt{50}=7.07=7.1$

Add distances to find the perimeter:

$5+8.1+7.1=20.2$

2.) Part A:

You need to use the mid-point formula:

$midpoint=(\frac{x_{1}+x_{2}}{2} ,\frac{y_{1}+y_{2}}{2} )$

$(3,2)(7,11)\\\\(\frac{3+7}{2},\frac{2+11}{2})\\\\(\frac{10}{2},\frac{13}{2})\\\\m=( 5,6.5)$

Part B:

1. Use the slope-intercept formula:

$y=mx+b$

M as the slope, b the y-intercept.

Find the slope of the two points A and B using the slope formula:

$m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} =\frac{rise}{run}$

Insert slope as m into equation.

Take point A as coordinates $(x,y)$ and insert into the equation. Solve for the intercept, b:

$(y)=m(x)+b$

Insert the value of b into the equation.

2. Use the mid-point coordinate. Take the slope.

If you need to find the perpendicular bisector, you will take the negative reciprocal of the slope. Switch the sign and flip it. Ex:

$\frac{1}{2} =-\frac{2}{1}=-2\\$

Insert the new slope into the slope-intercept equation as m.

Take the mid-point coordinate as (x,y) and insert into the equation with the new points. Solve for b.

Insert the value of b.

4 0

4 years ago

tatiyna

Hello,

I dont care for points, Just glad to help! :D

And A slope iis only x*y=z. This mean's
That you will basically be dividing top from side (NOY BOTTOM)
and be multiplying those 2.

Hope this helps

3 0

3 years ago

Read 2 more answers

Write an equation of the parabola with the vertex (-5,4) and focus (-5,0)

ch4aika [34]

Answer:

-0.4 or -10.4

Step-by-step explanation:

5 0

3 years ago

The blue are the two boards that you need to use.

ad-work [718]

Answer:

for what?

Step-by-step explanation:

7 0

3 years ago

A cylindrical water tank is being filled with a hose. The depth of the water increases by 1 1/4 ft per hour.

Ray Of Light [21]

2 4/5 is the correct answer

6 0

3 years ago