Topic Test — Cumulative exam Answers

A sphere and a cylinder have the same radius and height. The volume of the cylinder is .What is the volume of the sphere?

A set of cards contains the numbers 1 through 20. Mathieu chooses a card at random, records the number of the card, and then returns the card to the set. He conducts 200 trials of this event. Based on the theoretical probability, how many times can Mathieu expect to choose a multiple of 5?

What is the total surface area of this square pyramid?_____________ mm2

Yu-Xi draws a triangle with two angles measuring and . What is the measure, in degrees, of the third angle?

Maggie’s bank has assigned her a temporary 3-digit PIN to use with her ATM card. Each digit is a number from 1 to 5, inclusive, and no digit can be used more than once in the PIN. Which multiplication problem can be used to determine the probability that the PIN she was assigned was 123?