The circle below is centered at the point (1, 2) and has a radius of length 3. What is its equation?
O A. (x-1)2 + (y+ 2)2 = 9
O B. (x-1)2 + (y-2)2 = 32
O C. (x - 2)2 + (y+ 1)2 = 9
O D. (x-2)2 + (y-1)2 = 32
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SUBMIT

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

Manny bought 12 pounds of vegetables at the supermarket. 75% of the vegetables were on sale. how many pounds of vegetables were not on sale? 98 points : )

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?