What is the surface area of a sphere with a diameter of 14 cm? 196π cm2 784π cm2 28π cm2 98π cm2

What is the difference between regular convex and concave polygons

The perimeter of a stage is 116 feet. it is 17 feet wide. how long is it?

The weight of full–grown tomatoes at a farm is modeled by a normal distribution with a standard deviation of 18.4 grams. the 95 percent confidence interval for the mean weight of the tomatoes is calculated using a sample of 100 tomatoes. what is the margin of error (half the width of the confidence interval)?