Solve.The area of a triangular poster is 1680 square centimeters. Its altitude is 4 feet shorter than twice its base. Find the lengths of the altitude and base.
A. base = 84 cm; altitude = 20 cm
B. base = 42 cm; altitude = 40 cm
C. base = 21 cm; altitude = 80 cm
D. base = 42 cm; altitude = 80 cm
Answer: D
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Perform the indicated operation. Simplify the result.
- 
A. 
B. 
C. 
D. 
Solve the inequality by reading the given graph. State the solution set using interval notation.x2 + 4x < 2x + 8 A related function is graphed below.
x-intercepts: (-4, 0), (2, 0)
A. (-?, -4) ? (2, ?) B. (2, 4) C. [-4, 2] D. (-4, 2)
Use the remainder theorem and synthetic division to find P(k).k = 
; P(x) = x4 - x2 - 8
A. 38 B. 50 C. 34 D. 22
Solve the problem.The value of 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__dsd0520191959__f1q140g3.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 = -1600
B. b = - 1400
C. b = 2200
D. b = 2600