Solve the problem.Solve for a: 
A. a = 
B. a = 
C. a = 
D. a = 
Answer: B
Mathematics
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In major league baseball, the distance between bases is 30 feet greater than it is in softball. The bases in major league baseball mark the corners of a square that has an area 4,500 square feet greater than for softball. Find the distance between the bases in baseball.
A. 30 ft B. 60 ft C. 45 ft D. 90 ft
Mathematics
Rationalize the denominator.
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?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics
Find the unit vector in the direction of the given vector. Write your answer in the indicated form.Let u = 
. Find the unit vector in the direction of u, and write your answer in component form.
A. 
B. 
C. 
D. 
Mathematics
Graph the equation.9x + 7y = 0
A. 
B. 
C. 
D. 
Mathematics