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Inga [223]
3 years ago
8

3. What is the volume of the cone?

Mathematics
2 answers:
uranmaximum [27]3 years ago
7 0

the volume is 20 you have to add the inches i graphed it and the units were 20 so the volume of the cone 20


vova2212 [387]3 years ago
5 0

The formula for the volume of a cone is V = PI x r^2 x h/3

r = 1/2 the diameter. 1/2 of 8 = 4 inches.

h = height = 12 inches.

Using 3.14 for PI, the formula now becomes:

V = 3.14 x 4^2 x 12/3

V = 3.14 x 16 x 4

V = 200.96 cubic inches.


You do not say if the answer needs to be rounded, so round the answer as needed.

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If a = 7 and b = 11, what is the measure of ∠B? (round to the nearest tenth of a degree)
Firdavs [7]
Is there a picture for this if so can you post it
8 0
3 years ago
AABC is isosceles.<br> AB = 3x - 4 and BC = 5x - 10.<br> AB = [?]
Schach [20]

If AB = BC then set up the equation 3x - 4 = 5x - 10

Subtract 3x.

-4 = 2x - 10

Add 10.

6 = 2x

Divide by 2.

3 = x

AB is 3x - 4 so

3(3) - 4

9 - 4

5.

AB = 5

If AB is not equal to BC then this is not solvable.

But if they are I am sure AB = 5.

Hope this helps

4 0
3 years ago
Which trigonometric ratio is correct for triangle DEF? (Hint: Use Pythagorean Theorem first) A.) Sin(D)= 24/7 B.) Tan(D)= 24/25
Tanya [424]

Answer:

Cos E= 24/25

Step-by-step explanation:

Length of hypotenuse: 7^2+24^2=625. 625 square root=25

Thus, DE is 25.

Sin D= 24/25, so that is false.

Tan D= 24/7, so that is false.

Cos E= 24/25, so that is true

Sin E= 7/25, so that is false.

4 0
3 years ago
I need help to these questions. Convert these fractions to a decimal 7/8 , 4 3/8. Thanks
ehidna [41]
Simple...

you have: \frac{7}{8} and 4 \frac{3}{8}

Now, the first one is easy just divide it...

\frac{7}{8} =0.875

Now....

4 \frac{3}{8}    needs to be converted...

Multiply the whole number*denominator...

4*8=32

Now add the numerator....

32+3=35

Now use the original denominator...

\frac{35}{8}

Now divide...

\frac{35}{8}=4.375&#10;

Thus, your answer.
7 0
2 years ago
Read 2 more answers
Help me with my test
pychu [463]

Answer:

A

Step-by-step explanation:

5 0
3 years ago
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