Exam 8: Roots and Radicals

Determine whether the situation or equation represents direct or inverse variation. -The frequency that you brush your teeth and the length of time that you retain all your teeth

Add or subtract. Write the answer in lowest terms. - -

Add or subtract. Write the answer in lowest terms. - -

Choose the one alternative that best completes the statement or answers the question. Find the numerical value of the rational expression for the given value of x. - , x = 3

Write the rational expression in lowest terms. -

Solve the equation. - =

Write the rational expression in lowest terms. -

Find the LCD for the fractions in the list. - ,

Write the rational expression in lowest terms. -

Choose the one alternative that best completes the statement or answers the question. Solve the problem. -A plane flies 500 mi with the wind and 300 mi against the wind in the same length of time. If the speed of the wind is 27 mph, what is the speed of the plane in still air?

Write the rational expression in lowest terms. -

Multiply or divide as indicated. Write the answer in lowest terms. - .

Choose the one alternative that best completes the statement or answers the question -If the rational expression represents the area of a rectangle and represents the length of the rectangle, what rational expression represents the width?

Add or subtract. Write the answer in lowest terms. - -

Choose the one alternative that best completes the statement or answers the question.Identify as an equation or an expression. --4( 4 - x) +

Rewrite the rational expression with the indicated denominator. - =

Write the rational expression in lowest terms. -

Multiply or divide as indicated. Write the answer in lowest terms. - .

Add or subtract. Write the answer in lowest terms. - +

Multiply or divide as indicated. Write the answer in lowest terms. - ÷