Simplify the expression. Assume all variables represent positive real numbers.- 
A. -25
B. -5
C. -4
D. not a real number
Answer: B
Mathematics
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Simplify, if possible, by combining like terms.-2b2 - 5b2 + 5b2
A. -7b2 + 5 B. -2b2 C. -2b6 D. -7b4 + 5b2
Mathematics
Solve for the variable.
= 5
A. x = -25 B. x = 10 C. x = 25 D. x = 5
Mathematics
Perform the indicated operation. Assume that all variables are nonnegative.(5
)2
A. 5y2
B. 25
C. 25y
D. 25y2
Mathematics
Solve the problem, using 3.14 for ?. Round to nearest tenth unless instructed differently.The outfield wall in a baseball park is in the shape of a quarter circle. If the radius of the circle is 9 ft, how long is the wall?
A. 12.1 ft B. 28.3 ft C. 14.1 ft D. 7.1 ft
Mathematics