Write the reference angle for the given angle.66°
A. 24°
B. 66°
C. 114°
D. 156°
Answer: B
Mathematics
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Factor the expression completely. If the polynomial is prime, state this as your answer.a2b2 - 36
A. (b + 6)(b - 6) B. (a2b + 6)(ab - 6) C. (ab + 36)(ab - 36) D. (ab + 6)(ab - 6)
Mathematics
Use the order of operations to simplify the expression.2 +
2- 
A. - 
B. 2
C. 
D. 
Mathematics
Solve the problem.It is necessary to have a 40% antifreeze solution in the radiator of a certain car. The radiator now has 30 liters of 20% solution. How many liters of this should be drained and replaced with 100% antifreeze to get the desired strength?
A. 12 liters B. 15 liters C. 7.5 liters D. 10.0 liters
Mathematics
Graph the equation.f(x) = 
(x + 2)2 - 5
A. 
B. 
C. 
D. 
Mathematics