Use the given information to find the exact value of the trigonometric function.sec ? = 4, ? lies in quadrant IFind cos .

A.
B.
C.
D.


Answer: D

Mathematics

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Find  by using the Chain Rule. Express your final answer in w = ln (x + y) + ex; x = st, y = est

A. s
B. s
C. s
D. st

Mathematics

Solve. Round the answers as indicated.4.8x2 + 12.4x + 1.5 = 0, round to the nearest hundredth

A. 0.13 + 2.46i, 0.13 - 2.46i B. -2.46, -0.13 C. -2.46 D. 0.13, 2.46

Mathematics

Solve the problem.Stock in a company is selling for $11 per share. If someone purchased  worth of stock in this company, how many shares did they get?

A. 4140 shares
B. 551 shares
C. 16,560 shares
D. 360 shares

Mathematics

A(n) __________ number is any number that can be expressed as a fraction with an integer numerator and a nonzero integer denominator. 

A. whole B. rational C. positive D. negative E. real

Mathematics