Using the restrictions stated for the function, find a rule for f-1.f(x) = x2 - 20, x ? 0
A. f-1(x) = - 
B. f-1(x) = x2 + 20
C. f-1(x) = 
D. f-1(x) = - 
Answer: A
Mathematics
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Perform the indicated operation and write the answer in lowest terms. 
÷ - 
A. - 
B. 
C. - 
D. 
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Write out the first three terms and the last term of the arithmetic sequence.
A. -1 - 3 - 6 - . . . - 300 B. -3 - 6 - 9 - . . . - 300 C. -3 + 9 - 27 + . . . - 900 D. -3 - 9 - 27 - . . . - 900
Mathematics
Perform the indicated operations. Simplify the answer.
A. 3 B. 3i C. -3 D. -3i
Mathematics
Solve the problem.A gas law in chemistry says that 
= 
. If T = 200, t = 230, 
, P = 80, and v = 9, find the value of p. Round to the nearest thousandth when necessary.
A. 10.222 B. 0.444 C. 102.222 D. 266.667
Mathematics