Find the exact value, given that sin A = -4/5 with A in quadrant IV, 
with B in quadrant III, and 
with C in quadrant II.cos 2B
A. 
B. - 
C. - 
D. 
Answer: D
Mathematics
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Use the properties of real numbers to simplify the expression.
A. 7x B. 4 + 3x C. x D. 4 - 3x
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Find numbers a and b, or k, so that f is continuous at every point.
A. k = 12 B. k = 20 C. k = -4 D. Impossible
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Convert. Round to the nearest tenth unless otherwise indicated.The recipe calls for the oven to be heated to 375 ° F. What is this temperature in degrees Celsius?
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Find the phase shift.y = 3 cos
A. 
units to the left
B. 
units to the right
C. 
units to the right
D. 
units to the left
Mathematics