Which of the following is the median of the date set below? 9, -4, 6, -1, 13

A. 9

B. 6

C. -1

D. -4

Answer Explanation:

To find the median, we arrange the give dataset in ascending order -4, -1, 6, 9, 13 There are 5 five numbers in the dataset and median will fall in (frac{(5+1)}{2}) position, which is third position. The element in the third position is 6. Therefore, 6 is the median of the give set of data.

Therefore, the Correct Answer is B.

Q #1: 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 5.2 feet above the sidewalk?

A. 52 feet

B. 148 feet

C. 32.2 feet

D. 62.4 feet

Answer Explanation

In this problem slope represents the change in height above sidewalk to change in length of the ramp.

From the definition of slope

Letting x to be the minimum length of the ramp, then

Substituting with the known value of slope

Cross-multiply to find the value of x

Thus, the minimum length of the ramp needed is 62.4 feet to access to a door that is 5.2 feet above the sidewalk.
Q #2: Which of the following is the decimal equivalent of 3/8?

A. 375

B. 3.75

C. 37.5

D. 0.375

Answer Explanation
Q #3: The length of a rectangular room is 9 feet greater than its width. Which of the following equations represents the area (A) of the room?

A. A=9x

B. A=2x+2(x+9)

C. A=x(x+9)

D. A=x+(x+9)

Answer Explanation

we are asked to find the area of the room from the given information.

The first step is to find equation relating the length of the room to its width. If we let the width of the room to be x. Then,

Width of the rectangle= x

Length of rectangle = (x+9)

Area of the rectangle, A= Length*width = (x+9)*x

A=x(x+9)

Therefore, the area of the rectangular room is x(x+9).