Simplify. Write your answers in the form of a+bi, where a and b are real numbers.(6 - 
) (3 + 
)
A. 78 - 42 i
B. 78 + 42 i
C. -78 + 42 i
D. 3618 + 708 i
Answer: B
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Integrate the function.
A. 
ln 
B. 
ln 
C. 
ln 
D. ln 
Solve the problem.Inclusive of a 7.2% sales tax, a diamond ring sold for $2894.40. Find the price of the ring before the tax was added. (Round to the nearest cent, if necessary.)
A. $2686.00 B. $3102.80 C. $2700 D. $208.40
Find the exact value of the expression, if possible. Do not use a calculator.cos (cos-1 0.6)
A. 0.6 B. 0.8 C. 2.5 D. 3.7
Solve the problem.During 1991, 200,000 people visited Rave Amusement Park. During 1997, the number had grown to 834,000. If the number of visitors to the park obeys the law of uninhibited growth, find the exponential growth function that models this data.
A. f(t) = 634,000e0.238t B. f(t) = 634,000e0.248t C. f(t) = 200,000e0.238t D. f(t) = 200,000e0.248t