Kendra used 49 cubes to build the first layer of a rectangular prism. The side length of each cube was 1 inch. The finished prism had a total of 7 layers. What is the volume of Kendra's prism in cubic inches?

Which best explains why this triangle is or is not a right triangle ?

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?

Let f(x) = 1/x^2 (a) use the definition of the derivatve to find f'(x). (b) find the equation of the tangent line at x=2