Use both properties of equality to solve the equation.10r + 4 = 54
A. 40
B. 5
C. 1
D. 44
Answer: B
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Find an explicit formula for an.0, 2, 0, 2, 0, . . .
A. an = 1 - (-1)n B. an = 1 + (-1)n C. an = 1 + (-1)n-1 D. an = 1 + (-1)n+1
Find the average value of 
over the given region.
over the rectangular solid in the first octant bounded by the coordinate planes and the planes 
, 
, 
A. 
B. 2
C. 
D. 3
Solve the problem. Use a Venn diagram, as needed.A survey of 280 families showed the following:107 had a dog;82 had a cat;37 had a dog and a cat;105 had neither a cat nor a dog nor a parakeet;9 had a cat and dog and a parakeet.How many had a parakeet only?
A. 38 B. 28 C. 23 D. 33
Solve the problem.A company makes 3 types of cable. Cable A requires 3 black, 3 white, and 2 red wires. B requires 1 black, 2 white, and 1 red. C requires 2 black, 1 white, and 2 red. They used 100 black, 110 white and 90 red wires. How many of each cable were made?
A. 20 cable A 30 cable B 10 cable C B. 10 cable A 103 cable B 20 cable C C. 10 cable A 30 cable B 20 cable C D. 10 cable A 30 cable B 93 cable C