2 years ago

"Calculate the volume of the cylinder if the diameter is 42 cm and height of cylinder is 8 cm"

1 answer:

6 0

To find the answer of this problem you need the formula for a cylinder.

V= pi* r^2 * h just plug in your numbers and you have the answer.

You also need to remember that diameter is just twice the radius.

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Eight more than 3 times a number

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Step-by-step explanation:

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Which phrase best describes f(x), graphed on the coordinate plane below? On a coordinate plane, a curve goes through two cycles.

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Answer:

5.6

Step-by-step explanation:

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How do I find the number of solutions for this equation? 6y = 12x + 36

Soloha48 [4]

Answer:

6y = 12x + 36 is x= 1 /2 y−3

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Step-by-step explanation:

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2 years ago

(5x^2+3x+4)-(2x^2+5x-1)

DedPeter [7]

Answer:
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3 years ago

Y = 2x <br> x + y = −6<br> the answer should be like this (x,y) or ( , )

melisa1 [442]

Answer:

(-2, -4)

Step-by-step explanation:

Given:

The system of equations to solve is given as:

$y=2x\\\\x+y=-6$

In order to solve this system of linear equations, we use substitution method.

In substitution method, we substitute the value of any one variable in the other equation.

So, we substitute the value of 'y' from first equation in the second equation.

This gives,

$x+2x=-6\\\\3x=-6$

Dividing both sides by 3, we get:

$\frac{3x}{3}=\frac{-6}{3}\\\\x=-2$

Now, $y=2x=2\times -2=-4$

Therefore, the solution is (-2, -4)

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3 years ago