Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(2x
)(2x
)
A. 24x3
B. 28x
C. 24x2
D. 28x2
Answer: A
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Use a graphing calculator to solve the system of equations. Round your solutions to one decimal place.2.5x - 2.4y + 1.9z = 3.33.9x - 7.0y + 0.3z = -2.74.1x - 3.2y + 5.7z = 2.5
A. (7.3, 4.3, -2.4) B. (3.6, 2.2, -1.2) C. (1.8, 1.1, -0.6) D. (5.5, 3.3, -1.8)
Find the domain of the function.g(x) = 
A. (-?, 4) ? (4, ?) B. (-?, 7) ? (7, ?) C. (-?, ?) D. (-?, -7) ? (-7, ?)
Solve the problem.The gravitational attraction A between two masses varies inversely as the square of the distance between them. The force of attraction is 4 lb when the masses are 3 ft apart, what is the attraction when the masses are 6 ft apart?
A. 1 lb B. 3 lb C. 2 lb D. 4 lb
Use mathematical induction to prove the statement is true for all positive integers n.4 + 9 + 14 + . . . + (5n - 1) = 
(5n + 3)
What will be an ideal response?