Add.6125 + 2288
A. 8413
B. 324
C. 223
D. 303
Answer: A
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Simplify the expression. Assume that all variables are positive.x2/3(x1/4 - x-1/4)
A. x5/12 + 2x11/12 B. x11/12 - x5/12 C. x11/12 + x5/12 D. x5/12 - x11/12
Two planes take off at the same time from an airport. The first plane is flying at 246 miles per hour on a course of 130.0°. The second plane is flying in the direction 165.0° at 359 miles per hour. Assuming there are no wind currents blowing, how far apart are they after 2 hours? ? Apply the rules regarding the use of significant digits after all computations are complete. ?
A. 423 miles B. 421 miles C. 427 miles D. 431 miles E. 429 miles
A moderately active 140-pound person will use 2,100 calories per day to maintain that body weight. How many calories per day are necessary to maintain a moderately active 145-pound person? ?
A. 2,180 calories B. 2,185 calories C. 21,750 calories D. 2,175 calories E. 2,170 calories
Find the sum.
?
?
A. 200 B. 199 C. 210 D. 201 E. 150