Solve the equation by completing the square.5x2 + 22x = -15
A. 
B. 
C. 
D. 
Answer: D
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Identify the equation as either an identity or not.sec4x - tan4x - 2 tan2x = 1
A. Not an identity B. Identity
Solve the problem.Between 8:30 a.m. and 9:30 a.m., cars drive through the Cappuccino Express at a rate of 12 cars per hour (0.2 per minute). The following formula from probability can be used to determine the probability that a car will arrive within t minutes of 8:30a.m. F(t) = 1 - e-0.2tDetermine how many minutes are needed for the probability to reach 0.6.
Fill in the blank(s) with the appropriate word(s).
Solve the system by either elimination or substitution. Verify your work by using "intersect" on your graphing calculator of by checking that your result satisfies both equations of the system. x = 5y - 239x - 6y = 27
A. (-7, 7) B. empty set solution; inconsistent system C. (7, 6) D. (6, 7)
Find the domain of the composite function f?g.f(x) = 
,g(x) = 
A. (-?, -8) or (-8, -1) or (-1, 0) or (0, ?) B. (-?, -1) or (-1, 0) or (0, ?) C. (-?, ?) D. (-?, -8) or (-8, 0) or (0, ?)