The Moon is about 400,000 km from the Earth. Using Newton's Law of Gravity how would the attraction between the Earth and Moon change if the distance from the Earth was halved to 200,000 km? A.2 times stronger because it is twice as close
B.4 time weaker since it is two times closer
C.4 times stronger because it is twice as close
D.8 times stronger because of the inverse of 0.5 over 400,000 km

Use set builder notation to represent the following set: { -3, -2, -1, 0}

Afactory makes propeller drive shafts for ships. a quality assurance engineer at the factory needs to estimate the true mean length of the shafts. she randomly selects four drive shafts made at the factory, measures their lengths, and finds their sample mean to be 1000 mm. the lengths are known to follow a normal distribution whose standard deviation is 2 mm. calculate a 95% confidence interval for the true mean length of the shafts. input your answers for the margin of error, lower bound, and upper bound.

Line segment eg is partitioned by point f in the ratio 1: 1. point e is at e (0, 4), and point f is at (1, 3). what are the coordinates of point g? (−1, 5) (2, 2) (3, 1) (4, 0)