Let f(x) = 8x2 - 5x and g(x) = 7x + 9. Find the composite.g[f(3)]
A. 7050
B. 1212
C. 408
D. 618
Answer: C
Mathematics
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Factor.x2 + 14x + 49
A. (x - 7)2 B. (x + 14)(x - 14) C. (x + 7)2 D. (x + 7)(x - 7)
Mathematics
Multiply and write the answer in lowest terms.
? 
A. 
B. - 
C. 
D. - 
Mathematics
Solve the problem.The decay of 279 mg of an isotope is given by A(t)= 279e-0.012t, where t is time in years. Find the amount left after 60 years.
A. 134 mg B. 136 mg C. 276 mg D. 68 mg
Mathematics
Solve the problem.A poll is conducted in a U.S. city to determine voting preferences prior to a presidential election. The following probabilities were obtained from the relative frequencies: P(D) = 0.51, P(M ? D) = 0.22, P(M ? D) = 0.77 where M represents male and D represents a person who plans to vote Democrat.Find P(M ? D').
A. 0.49 B. 0.78 C. 0.71 D. 0.26
Mathematics