Find an equation of the largest sphere with centre (5,4,9) that is contained in the first octant

Find the value of the variable and the length of each chord for #5 and #6.

Sara is flying a kite at the park. the angle of elevation from sara to kite in the sky is 53° and the length of the string is 32 feet. of sara is 5 feet tall how far off the ground is the kite

Manuela solved the equation below. what is the solution to manuela’s equation?