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

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

Mathematics
1 answer:
andrew11 [14]4 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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Answer:

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Step-by-step explanation:

it is very easy

19-6=-11

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now the true equation is

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8 0
3 years ago
Ben, sean, alexis and samantha divide a $47 so that ben and sean together got $27, ben and alexis got $25, and ben and samantha
ELEN [110]

Answer:

$11

Step-by-step explanation:

Let Ben has b,

sean has s

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samantha has s

Money.

We need to write the words into equations and solve as we can.

b + s + a + s = 47

b + s = 27

b + a = 25

b + s = 23

We need to find a.

Let's put 2nd equation in first, to get:

27 + a + s = 47

a + s = 20 ---------- 5th equation

Now let's solve 4th equation for b and put it into 3rd equation:

b + s = 23

b = 23 - s

Putting in 3rd equation:

23 - s + a = 25

a - s = 2 ---------------6th equation

Now, add up 5th and 6th equation to get a:

a + s = 20

a - s = 2

-------------

2a = 22

a = 22/2 = 11

Alexis got $11

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