Find the exact value without using a calculator. cos 

A.
B. - 
C. - 
D. undefined


Answer: B

Mathematics

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Estimate using front-end rounding:   ?

A. 400 B. 390 C. 380 D. 410

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Solve the equation for x and y.12x + 7xj + 45j2 = yj + y - 25j3

A. x = 3, y = 4 B. x = 4, y = 3j C. x = 4, y = 3 D. x = -4, y = 3

Mathematics

Solve the problem.A license plate is to consist of 2 letters followed by 3 digits. Determine the number of different license plates possible if repetition of letters and numbers is not permitted.

A. 468,140 B. 468,000 C. 676,000 D. 467,980

Mathematics

Solve the equation for -2? ? x ? 2?.sec x = 1

A. - 
B. -2?, 0, 2?
C. -?, ?
D. none

Mathematics