What is the midpoint of a line segment with endpoints at (3,-2) and (1,7)? A. (2,-9/2) B. (2,-5/2) C. (2, 5/2) D. (2,9/2)

Need on this geometry question. explain how you did it.

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days

Axel follows these steps to divide 40 by 9: start with 40. 1. divide by 9 and write down the remainder. 2. write a zero after the remainder. 3. repeat steps 1 and 2 until you have a remainder of zero. examine his work, and then complete the statements below.