Aright rectangular prism has length 35 cm, width 25 cm, and height 20 cm. if the length, width, and height are multiplied by 1/5, what happens to the surface area?

1. The area of a rectangular prism can be calculated with the following formula:

Where l is the length, w is the width and h is the heigth.

2. Let's calculate the area with the original dimensions:

3. If you multiply the length, width, and height by , you obtain the following area:

(The area decreases)

Therefore, the answer is: The area decreases from 4150 cm² to 166 cm².

the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

the root or roots of a polynomial are the values of the variable that makes the polynomial equal to 0. we can find the roots of a polynomial making the expression equal to 0 and then, isolating the variable (it it has just one variable).

for example, given the following polynomial:

the root or zero of the polynomial, can be found by making the expression equal to 0, and then, isolating the variable, so, finding the root we have:

therefore, we have that the root of the polynomial is equal to 2.

we must remember that the number of roots that a polynomial can have, will depend on the degree of the polynomial, a first degree polynomial have will have one single root, a second degree polynomial (quadratic expression) may have two roots and so.

hence the correct option is:

b. a value of the variable that makes the polynomial equal to zero.

have a nice day!