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Phantasy [73]
3 years ago
9

Need a problem answered pls help

Mathematics
2 answers:
vfiekz [6]3 years ago
8 0
The formula for the volume of a cone is V =PI x r^2 x h/3

r is given as as 8 and h is given as 63.

V = PI x 8^2 * 63/3

V = PI x 64 x 21

V = PI x 1344

Volume = 1344 PI cu. units.
 The answer is D.

insens350 [35]3 years ago
7 0
I think the answer is B
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Fill in the missing numbers along the sides of the triangle so that it contains each of the numbers from 4 through 12 exactly on
elixir [45]

Answer:  A B == 9 + 11   CD == 5 +7  E F == 6 + 10

Step-by-step explanation:

(This reminds me of a "formula" I developed a few years ago when I was photographing formal groups, and had to figyre out how many people to put in each row, and the rows had to be different lengths)  Anyway--

Get the sum of the numbers at the angles, subtract that number from 32, and that's the amount needed for the row.

Once I have that number, divide by 2 and split as "n + 1 and n-1

AB side:  angles given: 8 +4=12 , 32-12 =20  20/2 = 10;  10+1 =11  10-1=9

CD side: angles given:  8 + 12 =20, 32-20=12; 12/2 =6  6+1 =7 6-1 =5

EF side: angles given:  4 + 12 =16 32-16=16  My formula would have yielded 7+9, but those numbers were already used. Conveniently, 10 + 6 are left over.   Same principle, but + or - 2.

Thanks for the opportunity to work in this!

It is a fun way for me to end my participation in Brainly for a while. My school year is over!

Good Luck, Stay Safe!

8 0
3 years ago
Andy estimated that he would need 75 feet of lumber for a tree house project. he later found that the actual amount of lumber ne
Kipish [7]
Step 1
<span>Calculate the error
</span>error=75-64-----> 11 ft

step 2
<span>Divide the error by the exact value
</span>11/64=0.1719

step 3
<span>Convert that to a percentage 
</span>0.1719*100=17.19%

the answer is
17.19%

8 0
3 years ago
A parabola and a circle are graphed into the standard (x,y) coordinate plane. The circle has a radius of 4 and is centered at (1
Gala2k [10]

Answer:

Correct answer: Two point of intersection and one touch point.

Step-by-step explanation:

Cartesian form of parabola is: y= a(x-1)² + 5  and point named A(2,4)

when we replace the coordinates of the point A in the formula we get

a = - 1 and parabola is  y= - (x-1)² + 5 which means that it faces the opening downwards. The parabola touches the circle in vertex.

God is with you!!!

6 0
2 years ago
Please I need help with the question
liq [111]

Answer:

b

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
How can I solve this equation, 6x + 3y = -12, as y=mx+b?
djyliett [7]

Answer:

y=-2x-4

Step-by-step explanation:

6x + 3y=-12 subtract 6x to other side

3y=-12-6x divide 3 to every number

1y=-4-2x

5 0
2 years ago
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