Find a function of the form y = sin bx given the period.
A. y = sin 10x
B. y = sin 
x
C. y = sin 5x
D. y = sin 5?x
Answer: C
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The figure shows an angle ? in standard position with its terminal side intersecting the unit circle. Evaluate the indicated circular function value of ?.Find cos ?.
A. - 
B. - 
C. 
D. - 
Find the best buy (based on cost per unit).You have a coupon for 93 cents off Brand A cereal and a coupon for 45 cents off Brand B. A box of Brand A cereal costs $3.10 for 15.5 ounces. A box of Brand B cereal costs $4.05 for 22.5 ounces. If you use a coupon, which cereal is the better buy?
A. Brand B B. Not enough information C. Brand A D. Equal value
Find the partial derivative.Find fy(-1, 2) when f(x, y) = 
.
A. - 
B. 
C. 
D. - 
Find the slope and the y-intercept of the given line.7x + 9y = 73
A. 
; 
B. - 
; 
C. 
; 
D. - 
; 