Use the table to answer the question.
Is 31 an input or output of this function?
A. Input
B. Output
Answer: A
Mathematics
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Write the function in the form y = f(u) and u = g(x). Then find dy/dx as a function of x.y = cot(7x - 5)
A. y = cot u; u = 7x - 5; = - 7 csc2(7x - 5)
B. y = cot u; u = 7x - 5; = - 7 cot(7x - 5) csc(7x - 5)
C. y = 7u - 5; u = cot x; = - 7 cot x csc2 x
D. y = cot u; u = 7x - 5; = - csc2(7x - 5)
Mathematics
Use the laws of exponents to simplify each expression using positive exponents only. Assume all variables represent nonzero real numbers.
A.
B. x22
C.
D. x2
Mathematics
The function f is one-to-one. Find its inverse.f(x) =
A. f-1(x) =
B. f-1(x) = x2 + 3, x ? 0
C. f-1(x) = x2 - 3, x ? 0
D. f-1(x) = (x - 3)2
Mathematics
Find the quotient.60 ÷ (-6)
A. -
B. 10
C. -600
D. -10
Mathematics