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3 years ago

Identify the volume and surface area of the hemisphere in terms of π. HELP ASAP!!

Mathematics

1 answer:

posledela3 years ago

4 0

Answer:

Step-by-step explanation:

Use the formula for the SA of a hemisphere.

$SA=2\pi r^2$

Now we can find the radius of the hemisphere, which is 15.

Then, we can square that and multiply it by 2 to get 450.

Now, let's use the formula for the Volume of a hemisphere.

$V=\frac{2\pi r^3}{3}$

Now we can cube 15 and multiply it by 2 to get 6750.

Then we can divide this number by 3.

2250.

So the answer is D.

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3 years ago

Read 2 more answers

To be a member of the choir, you must go to an audition. Henry's cousin is a member of the choir. What conjecture can you make a

ratelena [41]

Answer:

A) Henry’s cousin practices with the choir

Step-by-step explanation:

becuase it says "Henry's cousin is a member of the choir."

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3 years ago

Which is a possible turning point for the continuous function f(x)? (–3, –4) (–2, –1) (0, –5) (1, –8)

katovenus [111]

Answer:

That would be the point(-2, -1)

Step-by-step explanation:

The graph rises between (-3, -4) and (-2, -1) then falls as it passes through the last 2 points ( y = -1 goes to y= -5 and then to y = -8 as x values move to the right).

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3 years ago

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he number of retro portable CD players you are prepared to supply to a retail outlet every week is given by the formula q = 0.1p

AlladinOne [14]

Answer:

Supply will decrease at the rate of 29 CDs per week.

Step-by-step explanation:

The number of retro portable CD players prepared to supply to a retail outlet every week is represented by the formula

q = 0.1p² + 9p

Here p = price offered

price it offers decreases at a rate of $1 per week.

In other words, $\frac{dp}{dt}=(-$1) per week$

Now we differentiate the given equation

$\frac{dq}{dt}=\frac{d}{dt}(0.1p^{2}+9p )$

$\frac{dq}{dt}=[0.1(2p)+9]\frac{dp}{dt}$

Since, $\frac{dp}{dt}=(-$1) per week$

$\frac{dq}{dt}=(-1)[0.1(2p)+9]$

For p = 100,

$\frac{dq}{dt}=(-1)[(0.1\times 200)+9]$

= (-1)[20+9]

= -29

Therefore, $\frac{dq}{dt}=(-29)$

Supply will decrease at the rate the rate of 29 CDs per week.

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