Evaluate the expression for the given replacement values.x + z for x = 3.2, z = 0.56
A. 8.8
B. 3.76
C. 2.64
D. 7.52
Answer: B
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Write the system of equations associated with the augmented matrix. Do not solve.
A. 14x + 17y = 13 6x + 15y = 12 B. 14x + 17y = 13 15x + 6y = 12 C. 14x + 17y = -13 15x + 6y = -12 D. 17x + 14y = 13 15x + 6y = 12
Solve the problem.In a certain location, the highest temperature recorded was 100°F. The lowest temperature recorded was 126 degrees less than the highest. What was the lowest temperature?
A. -138°F B. 0°F C. -26°F D. 26°F
Solve the problem.The price p and the quantity x sold of a certain product obey the demand equation p = - 
x + 140, 0 ? x ? 560.What quantity x maximizes revenue? What is the maximum revenue?
A. 560; $19,600 B. 420; $14,700 C. 280; $19,600 D. 140; $14,700
Solve the problem.During an intramural basketball game, Team A scored 16 fewer points than Team B. Together, both teams scored a total of 148 points. How many points did Team A score during the game?
A. 67 points B. 82 points C. 74 points D. 66 points