Solve the problem.The length of a rectangular billboard is 8 inches more than the width. The perimeter of the billboard is 140 inches. Find the width of the billboard.
A. 31 in.
B. 35 in.
C. 8 in.
D. 39 in.
Answer: A
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Solve the problem.At what points on the graph of f(x) = 2x3 - 6x2 - 19x is the slope of the tangent line -1?
A. (3, -57), (1, -23) B. (3, -57), (-1, 11) C. (0, 0), (-1, 11) D. (-3, -51), (-57, -23)
Draw the given angle in standard position. Draw an arrow representing the correct amount of rotation. Find the measure of two other angles, one positive and one negative, coterminal with the given angle.115°
A. 295° and -65°
B. 475° and -245°
C. 295° and -65°
D. 475° and -245°
Solve the problem.A surveyor is measuring the distance across a small lake. He has set up his transit on one side of the lake 120 feet from a piling that is directly across from a pier on the other side of the lake. From his transit, the angle between the piling and the pier is 40°. What is the distance between the piling and the pier to the nearest foot?
A. 143 ft B. 77 ft C. 101 ft D. 92 ft
Solve the problem.The value of a certain make and model of used car can depend on several factors. The table gives data for the values of three Chevy Caprice station wagons. The value V is measured in dollars, where A is the age of the car in years, and C is the condition of the car rated on a scale of 1 to 10 (10 is excellent condition). src="https://sciemce.com/media/4/ppg__file0518192205__f1q75g3.jpg" style="vertical-align: -23.0px;" /> is 
The variables are found to be related by the equation 
Use the information given in the table to write a matrix equation which when solved will yield the values of a, b, and c. Then, using the fact that the inverse of the matrix 
, find b.
A. b = 2200
B. b = - 1400
C. b = 2600
D. b = -1600