A sample of 144 was taken from a population with a standard deviation of 36 inches. What is the margin of error for a 99.7% confidence interval?
A. 6
B. 12
C. 3
D. 9

The circumference of a circle is 5 pi cm. what is the area of the circle?

1) prove that 731^3−631^3 is divisible by 100 2) prove that 99^3−74^3 is divisible by 25

Will mark determine whether the conjecture is true or false. give a counterexample for any false conjecture. given: points r, s, and t conjecture: r, s, and t are coplanar. a) false; the points do not have to be in a straight line. b) true c) false; the points to not have to form right angles. d) false; one point may not be between the other two.