Solve the problem.The 100th term in the arithmetic sequence 15, 11, 7, 3, . . . is
A. -340.
B. -336.
C. -385.
D. -381.
E. none of these
Answer: D
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An electronics company has strict specifications for silicon chips used in computers. The company will only install chips that are within 0.05 centimeters of the specified thickness. If the thickness specification of the chip type is 0.641 cm, find the lower and upper limit for the acceptable range of thickness of the chips.
A. The lower limit is 0.591 cm and the upper is 0.691 cm. B. The lower limit is 0.601 cm and the upper is 0.69 cm. C. The lower limit is 0.692 cm and the upper is 0.69 cm. D. The lower limit is 0.591 cm and the upper is 0.701 cm. E. The lower limit is 0.592 cm and the upper is 0.691 cm.
Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 133
B. 12
C. 
D. 
Factor the trinomial.u2 - 12u + 36
A. (u + 6)(u + 6) B. (u - 6)(u - 6) C. (u - 6)(u + 6) D. (u + 6)(u - 6)
Find the product.(5x + 8y)2
A. 5x2 + 80xy + 64y2 B. 5x2 + 64y2 C. 25x2 + 80xy + 64y2 D. 25x2 + 64y2