Decide whether or not the given equation is an identity.1 - 
= 2 - sin y
A. Yes
B. No
Answer: B
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Perform the indicated operation. Write the result in the form a + bi.(-3 + 4i) - 5
A. 8 - 4i B. 2 + 4i C. 2 - 4i D. -8 + 4i
Solve the problem.A camera costs $810. If the sales tax rate is 7%, what is the total price including tax? Round your answer to the nearest cent.
A. $874.80 B. $866.70 C. $1377.00 D. $858.60
Find an equation of the tangent line at the indicated point on the graph of the function.y = f(x) = 
, (x, y) = (5, 31.25)
A. y = 
x - 
B. y = 
x - 
C. y = 
x + 
D. y = 
x + 
Solve the problem.On August 13, the Bryer family received 23 pieces of mail, consisting of magazines, bills, letters, and ads. If they received the same number of magazines as letters, three more bills than letters, and five more ads than bills, how many magazines did they receive?
A. 3 magazines B. 6 magazines C. 4 magazines D. 11 magazines