Solve the problem.A company estimates that the revenue (in dollars) from the sale of x units of dog houses is given by 
. Use the differential to approximate the change in revenue from the sale of one more dog house when 230 dog houses are sold.
A. $27.00
B. $32.00
C. $0.27
D. $0.32
Answer: D
Mathematics
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Solve.Find the value of L if P = 28 and W = 5 in the formula P = 2L + 2W.
A. 23 B. 14 C. 9 D. 11.5
Mathematics
Solve the problem.Ellen is knitting a scarf with one 5-inch blue stripe, one 5-inch green stripe, and one 
white stripe. How wide is the scarf?
A. 3
in.
B. 
in.
C. 12
in.
D. 
in.
Mathematics
Tell whether a linear model or a quadratic model is appropriate for the data. If a quadratic model is appropriate, then decide also whether the lead coefficient should be positive or negative.
A. Quadratic; leading coefficient negative B. Linear C. Quadratic; leading coefficient positive
Mathematics
Find the exact value of the trigonometric function. Do not use a calculator.cot 
A. 
B. 1
C. -1
D. - 
Mathematics