Determine the amplitude and range of the function and sketch its graph.y = -3 cos x
A. amplitude: 3; range: [-3, 0]
B. amplitude: 3; range: [-3, 3]
C. amplitude: 3; range: [-3, 3]
D. amplitude: 3; range: [-3, 3]
Answer: D
Mathematics
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Factor completely.169s2 - 25t4
A. (13s + 5t2)2 B. (13s + 5t2)(13s - 5t2) C. (13s - 5t2)2 D. (169s + t2)(s - 25t2)
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Find the product using one of the formulas for the square of a binomial.(y + 0.8)2
A. 2y + 1.6 B. y2 + 1.6y + 0.64 C. y2 + 0.64y + 0.64 D. y2 + 0.64
Mathematics
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.sin 2B
A. - 
B. 
C. 
D. - 
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Graph the system of inequalities.x + 4y ? 4x + 4y ? 0 
A. No solution
B. 
C. 
D. 
Mathematics