Write the expression without parentheses.-(-9v - 2r)
A. 9v - 2r
B. -9v + 2r
C. 9v + 2r
D. -9v - 2r
Answer: C
Mathematics
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Write as a percent.
A. 3.33333333% B. 33.3333333% C. 333.333333% D. 30%
Mathematics
Simplify. Combine like terms if possible.-4x - 5y
A. -9(x + y) B. -4x - 5y C. -9xy D. -2xy
Mathematics
Solve the problem.In an electrical circuit, let V represent the electromagnetic force in volts at t seconds. Assume 
. Find the smallest positive value of t where 
for 
.
A. 
sec
B. 
sec
C. 
sec
D. 0 sec
Mathematics
Solve the problem.Use the formula P = 4s to find the perimeter of a square with side length 23 centimeters.
A. 97 B. 69 C. 92 D. 46
Mathematics