Solve.The function  models the number of calories per day, f(x), a person needs to maintain life in terms of the person's weight, x, in kilograms. How many calories does a person who weighs 54 kilograms (approximately 118.8 pounds ) need to maintain life? Round to the nearest whole number.

A. 1394 calories
B. 2778 calories
C. 4821 calories
D. 2497 calories


Answer: A

Mathematics

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Solve the problem.dy/dt = ky + f(t) is a population model where y is the population at time t and f(t) is some function to describe the net effect on the population. Assume k = .02 and  when t = 0. Solve the differential equation of y when f(t) = -19t.

A. y = 950t + 47,500 - 37,500e.02t B. y = -950t - 47,500 - 37,500e.02t C. y = 950t + 47,500 - 37,500e-.02t D. y = -950t + 47,500 - 37,500e-.02t

Mathematics

Solve the problem.Alison sets aside  each month to spend on books and music files. If she spends m dollars on music files in a given month she may spend b dollars on books where  Graph the equation and use the graph to estimate the amount Alison may spend on books in March if she spends  on music files.

A. $81 B. $30 C. $26 D. $19

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Add. 732+ 53

A. 785 B. 775 C. 1262 D. 786

Mathematics

Find the product if possible. 

A.

B.

C.

D.

Mathematics