Find the x-intercepts (if any) for the graph of the quadratic function.f(x) = -(x + 1)2 + 9
A. -2 and 4
B. -4 and 2
C. 1 and - 9
D. none
Answer: B
Mathematics
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Find the directrices of the ellipse.16x2 + 4y2 = 64
A. x = ± 
B. y = ± 
C. y = ± 
D. x = ± 
Mathematics
Simplify. Write the answer using only positive exponents. Leave the answer in exponential notation.(y4)5
A. 
B. 
C. y9
D. y20
Mathematics
Solve the problem. Round to the nearest hundredth of a percent if needed.During clinical trials of a new drug intended to reduce the risk of heart attack, the following data indicate the occurrence of adverse reactions among 1100 adult male trial members. What is the probability that an adult male using the drug will experience nausea?
A. 2.18% B. 2.36% C. 1.64% D. 28.57%
Mathematics
Graph the line on the coordinate plane using the given information.Passes through (0, 6) and m = 
A. 
B. 
C. 
D. 
Mathematics