All categories

3 years ago

Help me find the answer please

Mathematics

1 answer:

N76 [4]3 years ago

8 0

Answer:

V≈6283.19

Step-by-step explanation:

V=πr^2h

V=π10^2*20

You might be interested in

Help me, please <br><br> -31.5 = -6b, b = ?

GrogVix [38]

Answer:

b=5.25

Step-by-step explanation:

Divide both sides. by -6.

-31.5/-6 = 5.25

3 0

3 years ago

Read 2 more answers

Ruth hit's a baseball to the right field. The ball is 4 ft above the ground when she hits it. Three seconds later it reaches its

Angelina_Jolie [31]

Answer:

Vertex form: $h(t)=-16(t-3)^2+148$

Height expressed as a function of time: $h(t)=-16t^2+96t+4$

Step-by-step explanation:

We have been given that the ball is 4 ft above the ground when she hits it.

This means that initial value (y-intercept) of ball is 4.

We are also told that three seconds later it reaches its maximum height of 148 ft. This means $h(3)=148$ .

We know that vertex form of a parabola is in format $y=a(x-h)^2+k$ .

Let us solve for a using our given information.

$4=a(0-3)^2+148$

$4=a(-3)^2+148$

$4=a*9+148$

$4-148=9a+148-148$

$-144=9a$

$a=\frac{-144}{9}$

$a=-16$

Therefore, the vertex form of our given function would be $y=-16(x-3)^2+148$ .

Since we need height as a function of time, so we will get:

$h(t)=-16(t-3)^2+148$

$h(t)=-16(t^2-6t+9)+148$

$h(t)=-16t^2+96t-144+148$

$h(t)=-16t^2+96t+4$

Therefore, the function where height is expressed as a function of time would be $h(t)=-16t^2+96t+4$ .

3 0

3 years ago

Samantha has chocolate bars and lollipops in the the ratio 4:5. If she has 12 chocolate bars,how many lollipops does she have?

labwork [276]

4 • 3 = 12
5 • 3 = 15
she has 15 lollipops

8 0

3 years ago

What is the equation of this line in slope-intercept form? pls answer asap I need it today.

Yuri [45]

Answer:

y = -3× - 1

Step-by-step explanation:

the explanation is in the picture, hope this helped!

6 0

3 years ago

C.) Apple offers a buyback program for iPhones after they are 5 years old. They

max2010maxim [7]

Answer: It would not be profitable to sell it back for 100$.

Step-by-step explanation:

It would not be profitable because you might have payed 300-1000$ (Depending what phone you buy) for your phone. It would only be profitable for the older generation of the phones like iPhone 5 and iPhone 6.

4 0

3 years ago