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 2C
A. 
B. - 
C. 
D. - 
Answer: D
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Solve the problem.A platform has the shape of a frustum of a cone. Find its centroid if the radii of its bases are 2.00 ft and 9.00 ft and the height between bases is 7.00 ft.
A. 2.19 ft from the center of the larger base B. -0.0777 ft from the center of the larger base C. 9.08 ft from the center of the larger base D. 6.81 ft from the center of the larger base
Solve each equation for y as an expression in x. Then equate the expressions to obtain an equation in the variable x. Finally, solve the equation for the unknown x.y - 3x = 20; y - 2x = 5
A. {-15} B. {25} C. {15} D. {-25}
Use the counting principle to obtain the answer.The frequency setting for a garage door opener is determined by the positions of ten switches, each of which can be set to a "+" or "-" position. In how many ways can the switches be set?
A. 100 B. 1144 C. 59,049 D. 1024
The height (in feet) of an object dropped off of a bridge can be modeled by the equation s(t)=-36t^2+144. How long will it be before the object hits the water below the bridge?
What will be an ideal response?