Which equation is an equation of a circle with a radius of 3 and its center is at (5,-2)? (x + 5)2 + (y-2)2 = 3
(x + 5)2 + (y - 2)2 = 9
(x + 5)2 + (y + 2)2 = 3
(x - 5)2 + (y + 2)2 = 9

Using the graph below, select all statements that are true. a. f(0.6)=0 b. f(-3.2)=-3 c. f(5.1)=5 d. this is the graph of the greatest integer function. e. this graph is one-to-one.

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

Select the correct answer. in the figure, angle k measures 45°. what is the measurement of angle c? a. 38° b. 45° c. 90° d. 98°