Which of the following represents the area of a rectangle whose length is 5x − 3 and whose width is x + 7? 5x2 − 21 5x2 + 9x − 21 5x2 + 32x − 21 5x2 − 32x − 21

we know that

the area of the rectangle is equal to

where

L is the length side of the rectangle

W is the width side of the rectangle

In this problem we have

substitute the values in the formula above to find the area

therefore

the answer is the option

5x2 + 32x − 21

4

step-by-step explanation:

6 (donuts) divided by 3 is 2.

so 2/3 means 2 times 2, which is 4/6.

you get two and your friend gets four.

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.