Solve the problem.If an object is dropped off of a tower, the velocity, V, of the object after t seconds can be obtained by multiplying t by 32 and adding 10 to the result. Find an equation relating the velocity, V, to the number of seconds, t.
A. V = 
B. V = 32t + 10
C. V = 32 + 10t
D. V = 42t
Answer: B
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Solve the problem.The golden ratio ? is the positive solution of the equation
A. x2 = 1 + x.
B. x2 = 1 - x.
C. x2 = 
.
D. x = 1 + x2.
E. none of these
Find the first six terms of the sequence.a1 = 4, a2 = 2; for n ? 3, an = an-1 - an-2
A. 4, 2, 0, -2, -4, -6 B. 4, 2, 2, -2, 2, -2 C. 4, 2, 6, 8, 11, 19 D. 4, 2, -2, -4, -2, 2
Find the angles A and ACB and the length CD in the roof in the illustration below, where AC = BC. Round lengths of sides to three significant digits and angles to the nearest tenth of a degree.
A. ?A = 21.1°, ?ACB = 132.2°, CD = 2.65 ft B. ?A = 20.4°, ?ACB = 139.2°, CD = 2.78 ft C. ?A = 20.4°, ?ACB = 139.2°, CD = 3.25 ft D. ?A = 21.6°, ?ACB = 127.2°, CD = 2.71 ft E. ?A = 19.9°, ?ACB = 144.2°, CD = 3.25 ft
Find the perimeter of the triangle or rectangle as indicated.Find the perimeter of the rectangle.
A. P = 4.4 ft B. P = 7.875 ft C. P = 6.25 ft D. P = 12.5 ft