3 years ago

If a cube has a surface area of 72ft squared, what is the measure of each side?

Mathematics

1 answer:

tatyana61 [14]3 years ago

5 0

The answer is 18 just divide 72 by 4

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This is for keigo-san ^^ <br> whats 6x3-9x=

tatyana61 [14]

Answer:

18-9x

Step-by-step explanation:

6 0

3 years ago

Read 2 more answers

A picture inside a frame is 2 inches longer than it is wide. The picture is in a frame that has a width of 3 inches on each side

geniusboy [140]

Answer:

The dimensions of the frame are 15 in x 13 in

Step-by-step explanation:

Let

x ----> the length of the picture

y ----> the width of the picture

we know that

$x=2+y$ -----> equation A

The area of the picture, including the frame is

$A=(x+6)(y+6)$

$A=195\ in^2$

$195=(x+6)(y+6)$ ----> equation B

substitute equation A in equation B

$195=(2+y+6)(y+6)$

solve for y

$195=(y+8)(y+6)\\y^2+6y+8y+48=195\\\\y^2+14y-147=0$

solve the quadratic equation by graphing

The solution is y=7 in

see the attached figure

<em>Find the value of x</em>

$x=2+7=9\ in$

Find the dimensions of the frame

$x+6=9+6=15\ in$

$y+6=7+6=13\ in$

therefore

The dimensions of the frame are 15 in x 13 in

7 0

3 years ago

Which of the following ordered pairs is a solution of 3x+2y=-19

34kurt

We need the ordered pairs to choose an answer, but if you want to do it yourself you plug in the x and y values (x,y) and test to see if the equation is true, and equals -19.

8 0

3 years ago

w^(2) + 11w + 18 ? the sum of the factors of each constant term should be positive or negative when you factor the trinomial ?

OverLord2011 [107]

(x+9)(x+2) both positive when all are positive

4 0

4 years ago

I need to find the slope like asap help thanks

7nadin3 [17]

Answer:

Step-by-step explanation:

Using a slope triange we can see that the rise is 1 and the run is 1 and 1/1=1

8 0

3 years ago