/

Which of the following is the best approximation of 5 times the positive square root of 29?

A. 100.0

B. 44.7

C. 20.5

D. 26.9

Answer Explanation:

 we use the calculator to determine the positive square root of 20, which is then multiplied by 20.

Using the calculator,

 

Multiplying the square root above with 5 becomes

The approximate value is 26.9.

Therefore, the Correct Answer is D.

More Questions on TEAS 7 Math

  • Q #1: Which of the following is the total number of whole boxes that measure 3 ft * 3 ft * 3 ft that can be stored in a room that measures 15 ft * 15 ft * 15 ft, if the size of the boxes cannot be altered?

    A. 125

    B. 64

    C. 92

    D. 18

    Answer Explanation

    The number of boxes is found by volume of the room divided by volume of one box.

    Number of boxes

    The room can hold 125 boxes.

  • Q #2: Which of the following is the best approximation of 5 times the positive square root of 29?

    A. 100.0

    B. 44.7

    C. 20.5

    D. 26.9

    Answer Explanation

     we use the calculator to determine the positive square root of 20, which is then multiplied by 20.

    Using the calculator,

     

    Multiplying the square root above with 5 becomes

    The approximate value is 26.9.

  • Q #3: The American with Disabilities Act (ADA) requires that the slope of a wheelchair ramp be no greater than 1:12. Which of the following is the minimum length of a ramp needed to provide access to a door that is 5.0 feet above the sidewalk?

    A. 60 feet

    B. 145 feet

    C. 32.5 feet

    D. 30 feet

    Answer Explanation

     To find the minimum length requires, we need to understand what slope in the question represents. The slope represents the ratio between the height to the length. Let x be the minimum length of the ramp. Then,

    Now, we find the value of x by cross-products as follows

                                       

    Thus, the minimum length required to provide access is 60 feet.