Solve the problem.A company can make 12 airplane engines for $57,600, while 30 airplane engines cost $68,580. What is the cost y(x) of producing x airplane engines.
A. y(x) = x + 10,980
B. y(x) = 610x + 50,280
C. y(x) = 610x - 50,280
D. y(x) = 18x + 10,980
Answer: B
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Find an antiderivative of the given function.9 csc 7x cot 7x
A. - 
csc 7x
B. - 
cot 7x
C. 
csc 7x
D. -9 csc 7x
Solve the problem. Round to the nearest cent.Suppose your credit card has a balance of $2300 and an annual interest rate of 17%. You decide to pay off the balance over three years. If there are no further purchases charged to the card,a. How much must you pay each month?b. How much total interest will you pay?Round your answers to the nearest dollar.
A. a. $82.00 b. $652.00 B. a. $59.44 b. $160.16 C. a. $59.44 b. $553.12 D. a. $82.00 b. $1636.00
Solve the problem.Conservationists tagged 70 black-nosed rabbits in a national forest in 1990. In 1991, they tagged 140 black-nosed rabbits in the same range. If the rabbit population follows the exponential law, how many rabbits will be in the range 8 years from 1990?
A. 17,920 B. 153 C. 76 D. 35,840
Find the common ratio.92, 46, 23, 11.5, 5.75, . . .
A. 2 B. -0.5 C. 0.5 D. 5.75