IAR Review

Misha has a cube and a right-square pyramid that are made of clay. She placed both clay figures on a flat surface. Misha will make slices through each figure that are parallel and perpendicular to the flat surface. Which statements are true about the two-dimensional plane sections that could result from one of these slices? Select all that apply.

• A plane section that is triangular could result from one of these slices through the cube.

• A plane section that is square could result from one of these slices through the pyramid.

• A plane section that is rectangular but not square could result from one of these slices through the cube.

• A plane section that is square could result from one of these slices through the cube.

• A plane section that is triangular could result from one of these slices through the pyramid.

The spinner shown is divided into 8 equal sections. The arrow on this spinner is spun once. What is the probability that the arrow will land on a section labeled with a number greater than 3?

• 1/8

• 1/4

• 1/3

• 1/2

Reagan will use a random number generator 1,200 times. Each result will be a digit from 1 to 6. Which statement best predicts how many times the digit 5 will appear among the 1,200 results?

• It will appear exactly 200 times.

• It will appear close to 200 times but probably not exactly 200 times.

• It will appear exactly 240 times.

• It will appear close to 240 times but probably not exactly 240 times.

Step 1: 2(-20) + 3(-25) + 5(20) + 4(50)

Step 2: (3 + 2)(-20 + -25) + (5 + 4)(20 + 50)

Step 3: 5(-45) + 9(70)

Step 4: -225 + 630

Step 5: 405

Identify the step in which Chris made her first error. After identifying the step with the first error.

• Step 1

• Step 2

• Step 3

• There isn't an error

A train traveled 1/5 of the distance between two cities in 3/4 hour. At this rate, how many hours will it take the train to travel the entire distance between these two cities?

• A. 3/20

• B. 4/15

• C. 3 3/4

• D. 6 2/3

Point Q is the opposite of point P. Determine the location of point Q on the number line.

• 0

• -2

Point S is located at (5/4) on the number line. A student claims that the location of point S is to the right of the location of point P on the number line. Is the student's claim is correct or incorrect?

• Incorrect

• Correct

The scale on a map shows that 5 centimeters = 2 kilometers.

What number of centimeters on the map represents an actual distance of 5 kilometers? Enter your answer in the box.

• 2.5 km

• 12.5 km

• 10 km

• 25 km

The scale on a map shows that 5 centimeters = 2 kilometers.

What is the actual number of kilometers that is represented by 2 centimers on the map?

• 0.8 km

• 2.5 km

• 10 km

• 25 km

The scale on a map shows that 5 cm = 2km.

What is the actual number of kilometers that is represented by 2 centimeters on the map?

• 10 km

• 0.8 km

• 0.4 km

• 20 km