Simplify the expression. If the expression contains any variables, assume that they represent positive real numbers. Write your answer with only positive exponents.
A. 
B. 
C. x15
D. x55
Answer: B
Mathematics
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Solve.Two forces of 620 and 410 N (newtons) act on an object. The angle between the forces is 57°. Find the magnitude of the resultant and the angle that it makes with the larger force.
A. 911 N, 22° B. 910 N, 22° C. 7 N, 22° D. 912 N, 22°
Mathematics
Convert. When necessary, round the answer to two decimal places.11.5 minutes = seconds
A. 1150 B. 230 C. 690 D. 57.5
Mathematics
Factor completely.25s2 - 9t4
A. Prime B. (5s + 3t2)2 C. (5s + 3t2)(5s - 3t2) D. (5s - 3t2)2
Mathematics
Convert the units.37 L = 
mL
A. 0.037 mL B. 3700 mL C. 37,000 mL D. 3.7 mL
Mathematics