A1 Semester 2 Review

Simplify, your answer should only contain positive exponents:

2u²v^-4 ⋅ (2u⁴v^-3)²

• (8u¹⁰) / (v¹⁰)

• 8uv

• (4u⁸) / (v^-10)

• 8u¹⁰v¹⁰

Simplify, your answer should only contain positive exponents:

(4xy² ⋅ 4y^-4x³) / (2yx^-4)

• (8x⁸) / (y³)

• 4 / y³

• 32xy²

• (4x⁸) / (2y³)

The flavors of ice cream served at an ice cream shop are: vanilla, chocolate, cookie dough, butter pecan, rocky road, mint chocolate chip, and strawberry. You would like a dish with 2 scoops of different flavors. How many different dishes can you pick?

• 7

• 14

• 21

• 42

A meal at Subway consists of one sandwich, one bag of chips, and one drink. If there are 12 different sandwich choices, 6 different drinks, and 4 different types of chips. How many meals are possible?

• 288

• 22

• 1540

• 120

What are the ODDS against choosing a heart from a deck of cards? (Note: ODDS are different from probability!)

• 3/1

• 1/3

• 1/4

• 4/1

You roll a number cube once.

Event A: You roll an even number.

Event B: You roll a 6.

Find P(A or B)

• 1/8

• 1/12

• 2/3

• 1/2

A box contains 6 red, 9 green, and 10 black markers. You choose one marker at random, do not replace it, and then choose a second marker at random. What is the probability that both markers are red?

• ¹/₂₀

• ¹²/₂₅

• ³⁶/₆₂₅

• ⁶/₁₂₅

In 2000, a rural area had 1200 bird species. If species of birds are becoming extinct at the rate of 1.5% per year, how many bird species will there be left in the year 2012?

• 1001 bird species

• 1435 bird species

• 293 bird species

• 171 bird species

Nadia owns a chain of fast food restaurants that operated 200 stores in 1999. If the rate of increase is 8% annually, how many stores did the restaurant operate in 2007?

• 370 stores

• 22,040 stores

• 208 stores

• 318 stores

Find the product:

(2n + 6)(2n - 4)

• 4n² + 4n - 24

• 4n² - 24

• 4n² - 20n - 24

• 4n² + 20n + 24