Find the real zeros, if any, of each quadratic function using the quadratic formula. List the x-intercepts, if any, of the graph of the function. g(x) = x2 - 12 - 9x
A. x = 
B. x = 
C. x = 9, x = 12
D. No real zeros or x-intercepts
Answer: B
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Use De Morgan's law to write the negation for the statement.She is not older than 20 and he is older than 20.
A. She is older than 20 but he is not older than 20. B. It is not true that she is older than 20 or he is not older than 20. C. She is older than 20 or he is not older than 20. D. She is older than 20 or he is not younger than 20.
The function f(x) changes value when x changes from x0 to x0 + dx. Find the approximation error 
. Round your answer, if appropriate.f(x) = 
, x0 = 3, dx = 0.5
A. 0.00794 B. 0.34921 C. 0.10318 D. 0.17778
Provide an appropriate response.An interest rate of 8% compounded semiannually corresponds to an effective rate of
A. 12%. B. 9.2456%. C. 8%. D. 8.1600%. E. 8.2031%.
Find the value for the function.Find f(-2) when f(x) = 
.
A. - 
B. - 
C. - 10
D. 