Solve the problem.A survey revealed that 28% of people are entertained by reading books, 42% are entertained by watching TV, and 30% are entertained by both books and TV. What is the probability that a person will be entertained by either books or TV? Express the answer as a percentage.
A. 100%
B. 30%
C. 40%
D. 70%
Answer: C
Mathematics
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Use the accompanying graph of y = f(x) to sketch the graph of the indicated function.y = - 
f(x + 2) + 4
A. 
B. 
C. 
D. 
Mathematics
The graph of a function f is given. Use the graph to answer the question.Is f(6) positive or negative?
A. positive B. negative
Mathematics
Find the exact value under the given conditions.sin ? = 
, 0 < ? < 
; cos ? = 
, 0 < ? < 
Find cos (? + ?).
A. - 
B. - 
C. 
D. 
Mathematics
Solve the problem.The appliance store where the Jordans shop offers a 9% discount for paying cash. The Jordans received a discount of $48. What was their total bill before the discount? Round to the nearest dollar.
A. $533 B. $4 C. $5 D. $400
Mathematics