Use the distributive property to write the expression without parentheses. Then simplify, if necessary.7(x + 10)
A. x + 70
B. 7x + 10
C. 7x + 70
D. 7x + 17
Answer: C
Mathematics
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Solve the problem.Given that f(x) = 5 ln 2x, find f-1(x) and give the domain and range of f-1(x) .
A. f-1(x) = 
ex-5, domain = (-?, ?), range = (0, ?)
B. f-1(x) = 
ex/5, domain = (-?, ?), range = (0, ?)
C. f-1(x) = 
ex-5, domain = (0, ?), range = (-?, ?)
D. f-1(x) = 
ex/5, domain = (0, ?), range = (-?, ?)
Mathematics
Solve the problem.Determine a polynomial that represents the area of the figure. Give an exact answer.
A. 16m2 + 40m + 25 B. 16m2 + 25 C. 16?m2 + 40?m + 25? D. 16?m2 + 25?
Mathematics
Complete the identity.sec4 x + sec2 x tan2 x - 2 tan4 x = ?
A. sec4 x + 2 B. tan2 x - 1 C. 3 sec4 x - 2 D. 4 sec4 x
Mathematics
Evaluate the function.f(x) = (x - 4)(x + 2); Find f(-5).
A. 27 B. 3 C. 63 D. 7
Mathematics