Use a Venn diagram to answer the question.A survey of 240 families showed that91 had a dog;70 had a cat;31 had a dog and a cat;91 had neither a cat nor a dog, and in addition did not have a parakeet;7 had a cat, a dog, and a parakeet.How many had a parakeet only?
A. 34
B. 19
C. 24
D. 29
Answer: B
Mathematics
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Solve.Last year a small company paid its sales staff $81,800 in commissions. If the commission rate was 2%, what was last year's sales total for the company?
A. $40,900 B. $4,090,000 C. $1,636,000 D. $1636
Mathematics
Determine whether the graph represents a function.
A. No B. Yes
Mathematics
Use the fundamental identities to simplify the expression.
A. sec2? B. tan2? C. sin ? D. cos3?
Mathematics
Differentiate.f(x) = (5x + 6)2
A. f'(x) = 10(5x + 6)2 B. f'(x) = 5(5x + 6) C. f'(x) = 10(5x + 6) D. f'(x) = 2(5x + 6)
Mathematics