Find the least common multiple (LCM) of the pair of numbers.6 and 21n2
A. 42n2
B. 3
C. 126n2
D. 27n2
Answer: A
Mathematics
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Solve the problem.A couple plans to have four children. Using a tree diagram , obtain the sample space. Then, find the probability that the family has at least one boy.
A. 
B. 
C. 1
D. 
Mathematics
Solve the problem.The distance traveled by a falling object is given by d = 16t2, where d is the distance (in feet) the object falls in t seconds. A stuntman jumps from a rooftop 375 ft off the ground. How long will it take him, falling freely, to reach the ground? Round your answer to the nearest tenth of a second.
A. 23.4 sec B. 4.8 sec C. 77.5 sec D. 11.7 sec
Mathematics
If y varies directly as x, find the direct variation equation for the situation.y = 6 when x = 
A. y = 12x
B. y = 
x
C. y = 
x
D. y = x + 
Mathematics
Simplify.
- 
A. 
B. 
C. 
D. 
Mathematics