describe of light and explain how it help determine the arrangement of atom and molecules in solids. what type of light ( electromagnetic wave) is used when probing solids?

The weight of people in a small town in Missouri is known to be normally distributed with a mean of 186 pounds and a standard deviation of 29 pounds. On a raft that takes people across the river,...

The cone has a slant height of 20ft and the crock base has a radius of 10ft (use pi=3.14) I basically need to find the height of the cone and then I'll be able to solve it

Find the area of the triangle, in square units, having the indicated angles and sides. Round your answer to two decimal places.B=80degrees 20′, a=8,and c=10 Thank you.

A triangular parcel of land has sides of lengths 900, 820, and 250 feet. Approximate the area of the land, in square feet. Round answer to nearest foot.

Hello! I have a question about probability that I got for homework that I can't figure out. It would help if you told me how to solve this and future problems with the key words "and then"...

Given C=106 degrees, a=4, and b=15, use the Law of Cosines to solve the triangle for the value of c. Round answer to two decimal places. (Draw a picture).

there are over 400 species of crayfish in North America. One species, the Virile crayfish has slowly expanded
each coast to the waters of Montana. there it encounters the Calico...