Find the volume of a pyramid 18 ft high with a 10-ft-by-10-ft square base.
What will be an ideal response?
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Solve and check the linear equation.6x - 6 = 54
A. {15} B. {54} C. {58} D. {10}
Solve the problem.On a Touch-Tone phone, each button produces a unique sound. The sound produced is the sum of two tones, given by y = sin (2?lt) and y = sin (2?ht)where l and h are the low and high frequencies (cycles per second) shown on the illustration.
The sound produced is thus given by y = sin (2?lt) + sin (2?ht)Write the sound emitted by touching the 9 key as a product of sines and cosines.
A. y = 2 sin (357?t) cos (2061?t) B. y = 2 sin (2061?t) cos (357?t) C. y = 2 sin (2329?t) cos (625?t) D. y = 2 sin (625?t) cos (2329?t)
Solve the problem.Assume that the sales of a certain appliance dealer can be approximated by a straight line. Suppose that sales were $3000 in 1982 and $88,500 in 1987. Let x = 0 represent 1982. Find the equation giving yearly sales S.
A. S = 17,100x + 88,500 B. S = 85,500x + 3000 C. S = 17,100x + 3000 D. S = 85,500x + 88,500
A small corporation borrowed $800,000 to expand its line of toys. Some of the money was borrowed at 8%, some at 9%, and some at 10%. How much was borrowed at each rate if the annual interest owed was $67,400 and the amount borrowed at 8% was five times the amount borrowed at 10%? ?
A. $575,000 at 8%$110,000 at 9%$115,000 at 10% B. $575,000 at 8%$115,000 at 9%$115,000 at 9% C. $575,000 at 9%$110,000 at 8%$115,000 at 10% D. $575,000 at 8%$115,000 at 9%$110,000 at 10% E. $575,000 at 8%$115,000 at 9%$115,000 at 10%