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Blizzard [7]
3 years ago
9

4. A cone has a height of 4 and a base area of 9pi. What is it's volume? Show work

Mathematics
1 answer:
OLEGan [10]3 years ago
3 0

V= 1/3 times pi times radius squared times height

V= 1/3 • 3.14 • 4.5 squared • 4(4.5 because 9 divided by 2)

V= 1/3 • 3.14 • 20.25 • 4

V= 1.0466 • 81

V= 84.7746 units cubed

If told to round to nearest tenth then 84.8 , if hundreds then 84.78

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4 (2x-6)=10x-6. solve for x
Reika [66]

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation : 

   4*(2*x-6)-(10*x-6)=0 


   2x - 6  =   2 • (x - 3) 

   8 • (x - 3) - (10x - 6) = 0 

   -2x - 18  =   -2 • (x + 9) 

 -2 • (x + 9) = 0 

Solve :    -2   =  0

<span>This equation has no solution.
</span>A a non-zero constant never equals zero.

Solving a Single Variable Equation : 
 Solve  :    x+9 = 0 

<span>
 </span>Subtract  9  from both sides of the equation :<span> 
 </span>                     x = -9 

7 0
3 years ago
HELPPPPPPP!!!!!!!! I have been asking these questions and I am stuckkkkkk
zlopas [31]

Answer:

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6 0
3 years ago
What is the value of the 9th term in the following geometric sequence?
earnstyle [38]

Answer:  The correct option is (D) 196608.

Step-by-step explanation:  We are given to find the value of the 9th term in the following geometric sequence :

3,     12,    48,    192,    .     .     .

We know that

the n-th term of a geometric sequence with first term a and common ratio r is given by

a_n=ar^{n-1}.

For the given sequence, we have

first term, a = 3  and the common ratio, r is given by

r=\dfrac{12}{3}=\dfrac{48}{12}=\dfrac{192}{48}=~~.~~.~~.~~=4.

Therefore, the 9th term of the given sequence will be

a_9=ar^{9-1}=3\times 4^8=3\times65536=196608.

Thus, the required 9th term of the given sequence is 196608.

Option (D) is CORRECT.

7 0
3 years ago
If 12x12=144<br><br> then whats 144x12= <br><br><br><br><br> r a n d o m
bearhunter [10]
144x12= 1728
 -----------------------------------
6 0
3 years ago
The speed of an object in space is shown in the graph.
Arlecino [84]

Answer:

B

Step-by-step explanation:

To find the slope, find the vertical distance and the horizontal distance between the points. Then write the distances as a ratio.

6 - 3 = 3

0.4 - 0.2 = 0.2

The slope is 3/0.2 = 15.

6 0
3 years ago
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