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Arisa [49]
3 years ago
8

Choose the formula for the volume of a cone V=1/3

Mathematics
1 answer:
mote1985 [20]3 years ago
3 0
If you know the cone volume and the cone radius, then
height = 3*Volume / PI * r^2

answer is D


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Keeven uses 78 feet of fence to make a rectangle pan for his pet rabbit. The length of the pin is 20 feet.What is the width of t
jeyben [28]

Answer:

  19 ft

Step-by-step explanation:

The perimeter of a rectangle is given by ...

  P = 2(L +W)

Filling in the given values, we have ...

  78 = 2(20 +W)

  39 = 20 +W . . . . . divide by 2

  19 = W . . . . . . . . subtract 20

The width of the rectangular pen is 19 feet.

3 0
2 years ago
Jake is choosing between 2 cell phone plans. Plan A costs $15 per month plus $0.08 per minute. Plan B costs $35 per month for un
Alex73 [517]

Answer:

The system of equations is

y=0.08x+16

y=35

Step-by-step explanation:

Let

x ----> the number of minutes of calling time

y ----> the monthly cost of the calling plan

we know that

The linear equation in slope intercept form is equal to

y=mx+b

where

m is the slope

b is the y-intercept

In this problem

Plan A

m=0.08\\b=16

substitute

y=0.08x+16 ----> equation A

Plan B

m=0\\b=35

substitute

y=35 ----> equation B

therefore

The system of equations is

y=0.08x+16

y=35

5 0
3 years ago
Please help <br> What is the area of the hexagon?
nikklg [1K]

Answer:

60.32cm

Step-by-step explanation:

I hope it's helpful

5 0
3 years ago
Divide the polynomials. Your answer should be in this form p(x)+k/ x-3 where p is a polynomial and k is an integer. x^2+4/x-3=
Makovka662 [10]

Answer:

x + 3 + \frac{13}{x-3}

Step-by-step explanation:

Using long division

                  x + 3  ← quotient

        --------------------------

x - 3 | x² + 0x + 4

          x² - 3x    ↓

        ------------------------

                3x + 4

                 3x - 9

        -----------------------

                        13 ← remainder

Thus

\frac{x^2+4}{x-3} = x + 3 + \frac{13}{x-3}

             

6 0
3 years ago
2/3 - 3/2y + 1/3y + 4 = 0​
Korvikt [17]

Answer:

y = 4

Step-by-step explanation:

(2/3 + 4) + (-3/2y + 1/3y) = 0

(-3/2y + 1/3y) = -4 2/3

-9/6y + 2/6y = -14/3

-7/6y = -14/3

cross-multiply:

-21y = -84

y = 4

7 0
2 years ago
Read 2 more answers
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