a curve is constructed of three semicircles, the first with a diameter of 2 cm, the second with a diameter of 3 cm, and the third with a diameter of 4 cm. which of the following is closest to the length of the curve

These tables represent a quadratic function with a vertex at (0, -1). what is the average rate of change for the interval from x = 9 to x = 10?

What is the answer to question 11? will give extra points! include a explanation (reasonable) for you : )

Tom and lilly rented a house for $12,000 last year. at the start of the year they bought the house they had been renting directly from the owner for $250,000. they believe they could rent it for $12,000 this year, but stay in the house. how much does tom and lilly’s decision to buy the house change gdp? a. it reduces gdp by $12,000 b. it does not change gdp c. it raises gdp by $238,000 d. it raises gdp by $250,000