Determine if the following is an identity. = cos x + cot x

A. Not an identity
B. Identity


Answer: B

Mathematics

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If $600 is invested at 4% interest, compounded annually, then after n years the investment is worth dollars. Find the size of investment after 7 years.

a. $430.21 b. $1,860.81 c. $1,230.81 d. $789.56 e. $1,321.06

Mathematics

Provide an appropriate response.True or false? The negative square root of 16 is 4.

A. True B. False

Mathematics

Graph the inequality.x + y < -2

A.

B.

C.

D.

Mathematics

For the set of numbers, find the mean, median, and any mode that exist. 92, 89, 87, 86, 95, 91

A. mean: 90, median: 90, mode: no mode B. mean: 91, median: 86, mode: 95 C. mean: 89, median: 90, mode: no mode D. mean: 90, median: 86, mode: 95

Mathematics