Solve the problem.Suppose  is a mathematical model for actual time as a function of estimated time, where f(x) represents actual time (in minutes), x represents estimated time (in minutes), and m and b are constants. If  and b = -1.4, find f(x) when x is 30 minutes.

A. 29.44 min
B. 10.6 min
C. 30.56 min
D. 13.4 min


Answer: B

Mathematics

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Use the order-of-operations agreement to simplify. ÷ 

A. - 
B. -  
C. 0
D. - 

Mathematics

Find the center (h, k) and radius r of the circle with the given equation. (x - 3)2 + y2 = 64

A. (h, k) = (3, 0); r = 8 B. (h, k) = (0, 3); r = 64 C. (h, k) = (0, 3); r = 8 D. (h, k) = (3, 0); r = 64

Mathematics

Solve the problem.Suppose that the acceleration of an object is given by a(t) = 5t2/3 + 2e-t. The object's initial velocity, v(0), is 10 and the object's initial position, s(0), is -4. Find s(t).

A. s(t) =  + 2e-t + 8- 6
B. s(t) = 3t5/3 - 2e-t + 12
C. s(t) =  + 2e-t + 12- 6
D. s(t) =  + 2e-t + 10- 4

Mathematics

Write the number in scientific notation.An music album sells 436,000,000 copies.

A. 4.36 × 106 B. 4.36 × 107 C. 4.36 × 108 D. 4.36 × 10-7

Mathematics