Let the random variable X represent the weight of male black bears before they begin hibernation. Research has shown that X can be modeled by a Normal distribution with a mean of 250 pounds and a standard deviation of 50 pounds. What is the probability that a randomly selected male black bear will weigh more than 325 pounds before beginning hibernation? a
0.0668
b
0.7486
c
0.2514
d
0.8531
e
0.9332

Scott harris can invest $7,000 in a 1-year cd that earns interest at an annual rate of 4 percent compounded monthly. the amount per $1.00 is 1.040742. he can also invest $7,000 in a 1-year cd at annual rate of 4 percent compounded quarterly. the amount per $1.00 is 1.040604. what is the difference in the amount of interest earned for each investment? a) $0.96 b) $0.81 c) $0.87 d) $0.88

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Plzzz answer both questions and i will give you 100 points