Add or subtract. Simplify your answer to lowest terms.
+ 
A. 
B. 
C. 
D. 
Answer: B
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A license plate consists of any five capital letters from the ordinary English alphabet (A through Z) except for the letters O, I, and Q.How many of the license plates start with the letter Z and end with the letter W?
A. 233 B. 23 × 22 × 213 C. 215 D. 213 E. none of these
Change each unit to engineering notation using metric prefixes.560,000,000 Hz
A. 560 mHz B. 560 MHz C. 560 GHz D. 5.6 kHz
Solve the right triangle ABC with C = 90°. Your answer should give an angle in decimal degrees when given an angle in decimal degrees and in degrees and minutes when given an angle in degrees and minutes. Use the rules for significant digits.A = 61°3', c = 5.577 ft
A. B = 28°57', a ? 4.880 ft, b ? 2.700 ft B. B = 28°57', a ? 4.88 ft, b ? 2.70 ft C. B = 28°57', a ? 4.88 ft, b ? 2.7 ft D. B = 29°57', a ? 4.880 ft, b ? 2.700 ft
Solve the system.x2 + 3xy + y2 = 4x2 - 3xy - y2 = 4
A. {(2, 0), (-2, 0)} B. {(2, 0), (-2, 0), (2, -6), (-2, 6)} C. {(2, -6), (-2, 6)} D. {(0, 2), (0, -2), (2, -6), (-2, 6)}