Solve the problem.A survey of senior citizens at a doctor's office shows that 45% take blood pressure-lowering medication, 48% take cholesterol-lowering medication, and 7% take both medications. What is the probability that a senior citizen takes either blood pressure-lowering or cholesterol-lowering medication? Express the answer as a percentage
A. 0%
B. 4%
C. 86%
D. 100%
Answer: C
Mathematics
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Use areas to evaluate the integrals.
dx, 0 < a < b
A. 18(b2 - a2)
B. 
(a2 + b2)
C. 
(a2 - b2)
D. 
(b2 - a2)
Mathematics
Fill in the blank with <, >, or = to make a true comparison statement. -28.08 
-28.3
A. = B. < C. >
Mathematics
Simplify using the order of operations.83 - [8 + 5
] + 23 - 8
A. 453 B. 499 C. 509 D. 529
Mathematics
Simplify. Assume radicands of square roots are positive.(
)2
A. 6x
B. 3x
C. 9x2
D. 
Mathematics