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Romashka-Z-Leto [24]
3 years ago
11

Identify the volume of the hemisphere in terms of π. HELP PLEASE!!

Mathematics
1 answer:
andrew11 [14]3 years ago
4 0

Answer:

V = 1152π in³

Step-by-step explanation:

The formula for the volume of a hemishere is

\frac{ \frac{4}{3}\pi {r}^{3}  }{2}

Next we need to substitute the values from the question in.

\frac{ \frac{4}{3}\pi {12}^{3}  }{2}

Then finally we need to simplify.

\frac{2304\pi}{2}  = 1152\pi

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Use a formula to find the surface area of the cylinder . Use 3.14 for π.
Arlecino [84]

Answer:

I am so sorry

Step-by-step explanation:

I dont really know what it is but I think it is 21.98 you do 7 times 3.14

5 0
3 years ago
A segment in the complex plane has a midpoint at –1 + i. If the segment has an endpoint at –5 – 7i, what is the other endpoint?
morpeh [17]

Answer:

The other end point is: s+ti = 3+9i

Step-by-step explanation:

Mid-Point(M) in the complex plane states that the midpoint of the line segment joining two complex numbers a+bi and s+ti is the  average of the numbers at the endpoints.

It is given by:    M = \frac{a+s}{2} +(\frac{b+t}{2})i

Given: The midpoint = -1 + i and the segment has an endpoint at -5 - 7i

Find the other endpoints.

Let a + bi = -5 -7i  and let other endpoint s + ti (i represents imaginary )

Here, a = -5 and b = -7 to find s and t.

then;

-1+i = \frac{-5+s}{2} + ( \frac{-7+t}{2})i     [Apply Mid-point formula]

On comparing both sides

we get;

-1 = \frac{-5+s}{2}  and  1 = \frac{-7+t}{2}

To solve for s:

-1 = \frac{-5+s}{2}

or

-2 = -5+s

Add 5 to both side we have;

-2+5 = -5+s+5

Simplify:

3 = s or

s =3

Now, to solve for t;

1 = \frac{-7+t}{2}

2 =-7+t

Add 7 to both sides we get;

2+7 = -7+t+7

Simplify:

9 = t

or

t =9

Therefore, the other end point (s+ti) is, 3+9i




4 0
3 years ago
Read 2 more answers
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astraxan [27]

Step-by-step explanation:

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3x+4x+2x +5-12

8x-7

if x =6

8*6-7 =48-7

= 41

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27x-36y+72

6 0
3 years ago
13x = 32 + 5x this one is solving the equation and checking the solution
ddd [48]
X = 4, You subtract the 5x to the other side then divide the 32 by 8 to get 4.
6 0
3 years ago
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What is the perimeter of a rectangle with side lengths 6x-86x−8 and 3+14x3+14x
Ivahew [28]

EXPLANATION:  (2x6)-10)+2(4x13+(12-20)

ANSWER:  (20x14)=280 thats what i got lmk if its incorrect

5 0
2 years ago
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