Use the definition of continuity to determine whether f is continuous at a.f(x) = 
a = 9
A. Continuous
B. Not continuous
Answer: B
Mathematics
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Which method should be used to solve the system? Explain your answer, including a description of the first step.-5x2 - y2 =19x2 + 4y2 =64
What will be an ideal response?
Mathematics
Solve the exponential equation using the method of "relating the bases" by first rewriting the equation in the form eu = ev.ex - 6 = 
x + 2
A. 
B. 
C. 
D. 
Mathematics
Solve the equation on the interval [0, 2?).2 cos2 x + sin x - 2 = 0
A. 
, 
B. 0, ?, 
, 
C. 
, 
D. 
, 
, 
, 
Mathematics
Solve.During one year, the Cheung's real estate bill included $285 for county services. Of this amount, $123 went to the highway department. What percent did the county highway department receive? (Round answer to two decimal places.)
A. 3,505.50% B. 43.16% C. 56.84% D. 42.81%
Mathematics