State law requires a minimum of 21 students per classroom with a maximum of 49 square feet per student. Mrs. Johnson’s 3rd grade class has 21 students and dimensions of 35 feet by 30 feet. Does her classroom meet the state regulations?

50 square feet per student is above the maximum of 49 square feet per student. So her classroom does not meet the state regulations.

Step-by-step explanation:

A classroom has rectangular dimensions.

The area of a rectangle with dimensions a by b is given by the following equation:

In this question:

Dimensions of 35 feet by 30 feet.

So the area, in square feet, is:

1050 square feet for 21 students.

So we have 1050/21 = 50 square feet per student.

This is above the maximum of 49 square feet per student. So her classroom does not meet the state regulations.

x=half

step-by-step explanation:

d. 8

step-by-step explanation:

the given radical expression is:

we can rewrite this as:

we express as square numbers to get;

the exponents will now cancel out to give.

the correct answer is d