DEOC Practice Test A

Maxine works at an amusement park. She recorded the number of ice cream cones sold each day, along with the high temperature in Fahrenheit degrees. Using her data, she wrote a linear regression equation of y = 5x + 375. If the temperature, or x, is 70°F, how many ice cream cones could Maxine expect to sell?

• 725

• 705

• 350

• 375

Solve for x, if the perimeter, p, equals 48 in the triangle below.

• 4

• 7

• 3

• 6

In the figure below, triangles CDA and CBA are congruent. Which of the following is the value of x?

• -2

• 14/5

• 1

• 2

Jared is constructing a rectangular door for a shed. If the door has a width of 36 in. and a diagonal support of 112 in., what is the approximate height of the door?

• 76

• 148

• 106

• 118

Claire is constructing a triangular garden. If Claire would like to completely surround the garden with fencing, how much fencing will she need?

• 9

• 5

• 8

• 12

Megan constructed two box-and-whisker plots. What is the difference in the medians of the two box-and-whisker plots?

• 5

• 10

• 0

• 2

Terrence created a scatter plot to represent the total number of goals scored by each player on his soccer team and the number of hours the player spent at soccer practice. Which scatter plot has the most accurate line of best fit?

• 
• 
• 
• 

A rectangle is shown below. What will happen to the area of the rectangle if the length and width are multiplied by a scale factor of 0.25?

• The new area of the rectangle will be 1/2 of the original area of the rectangle.

• The new area of the rectangle will be 1/4 times the original area of the rectangle.

• The new area of the rectangle will be 4 times the original area of the rectangle.

• The new area of the rectangle will be 1/16 of the original area of the rectangle.

A lamppost is 10 feet high and casts an 5 foot shadow. At the same time of day, a flagpole near the lamppost casts a 24 foot shadow. Using the properties of similar triangles, find the height of the flagpole.

• 5

• 48

• 2

• 29

Calculate the volume of the cylinder:

• 9π yd³

• 7π yd³

• 36π yd³

• 2.25π yd³