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