Triangle Congruence: SSS and HL — Cumulative exam Answers

What is the center of a circle represented by the equation (x+9)2+(y−6)2=102?

What is the radius of a circle whose equation is (x – 7)2 + (y – 10)2 = 4?

Consider circle N with radius 30 cm and radians.

A company has an opportunity to bid on three contracts. Determine which would be the best investment given the information in the table below.Probability of Profit and Loss by ContractContractProfit, Probability of ProfitProbability to Break EvenLoss, Probability of LossSoutheast$45,000, 50%30%$6,000, 20%Southwest$60,000, 35%40%$10,000, 25%California$112,000, 20%40%$40,000, 40%

On a unit circle, the vertical distance from the x-axis to a point on the perimeter of the circle is twice the horizontal distance from the y-axis to the same point. What is sin?