Solve the problem.Ted runs a shoe store. The equation g = n + r expresses the relationship between gross sales (g), net sales (n), and returns (r). What were Ted's net sales if his gross sales were $4,400 and his returns were $1,500?
A. $1,500
B. $2,900
C. $3,100
D. $4,400
Answer: B
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Find T, N, and B for the given space curve.r(t) = (cosh t)i + (sinh t)j + tk
A. T = - 
(tanh t)i + 
j + 
(sech t)k; N = (-sech t)i - (sinh t)k ; 
B. T = 
(tanh t)i + 
j + 
(sech t)k; N = (sech t)i - (tanh t)k; 
C. T = - 
(tanh t sech t)i + 
j + 
(sech t)k; N = (-sech t)i - (tanh t)k; 
D. T = 
(tanh t sech t)i + 
j + 
(sech t)k; N = (sech2 t)i - (sinh t)k; 
Solve the problem. Assume projectile is ideal, launch angle is measured from the horizontal, and launch is over a horizontal surface, unless stated otherwise.A baseball is hit when it is 3.4 ft above the ground. It leaves the bat with an initial velocity of 
at a launch angle of 23°. At the instant the ball is hit, an instantaneous gust of wind blows against the ball, adding a component of -13.5i (ft/sec) to the ball's initial velocity. How high does the baseball go? Round your answer to the nearest tenth.
A. 54.7 ft B. 46.8 ft C. 50.2 ft D. 52.2 ft
Answer the question as instructed.Which of the following is the correct way to evaluate the expression 6 + 6 ? 4?
A. 6 + 6 ? 4 = 6 + 24 = 30 B. 6 + 6 ? 4 = 24 + 24 = 48 C. 6 + 6 ? 4 = 24 + 6 = 30 D. 6 + 6 ? 4 = 12 ? 4 = 48
Solve the problem.How long must $4500 be in a bank at 5% compounded annually to become $8485.42? (Round to the nearest year.)
A. 12 yr B. 15 yr C. 14 yr D. 13 yr