Write the standard form of the equation of the circle.Center (0, -1), r = 5
A. x2 + (y + 1)2 = 25
B. x2 + (y - 1)2 = 5
C. (x - 1)2 + y2 = 25
D. (x + 1)2 + y2 = 25
Answer: A
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Solve by trial.y ? 4 = 0
A. 4 B. 3 C. 5 D. 0
Convert from one measure to the other.96 inches to feet
A. 8 feet B. 288 feet C. 0.67 feet D. 32 feet
Solve.The cost of stainless steel tubing varies jointly as the length and the diameter of the tubing. If a 
length with diameter 2 inches costs $48.00 , how much will a 
length with diameter 
cost?
A. $485.30 B. $485.57 C. $480.00 D. $477.60
Jessica knows that the adult population gets, on average, eight hours of sleep each night. A hypothesis test can help her see if college students are different from the adult population. Jessica tabulated that her sample of 101 students got an average of 6.9 hours of sleep each night, with a standard deviation of 2.5. Using the data provided and the formula below, what is the t-statistic that Jessica calculates?