Find the angle of depression from the top of a lighthouse 250 feet above water level to the water line of a shit 2.5 miles offshore

[6.09] Find the lateral area of a triangular prism with base edges of 5cm, 12cm, and 13 cm. The height of the prism is 14cm. 44 centimeters squared 182 centimeters squared 195 centimeters squared 420 centimeters squared

the ratio of the altitudes of 2 similar polygons is 3root2 : 7. Determine the ratio of their areas.

X + Y = 10,3X + Y = 12

arrange the fractions from smallest to largest. 6/13,8/15,3/5.

objective 4-c: To solve quadratic equations by completing the square

how do I calculate the volumn of a basketball

Let V be the vector space of all continuously differentiale functions on the real line. (a) Prove that W = {f : f ' = 3f} is a subspace of V. (b) Prove that U = {f : f ' = f+1} is not a subspace of V.

The difference between two numbers is 3, and the sum of those two numbers is 21. What are the two numbers?

1) Determine if the set U is a subspace of the vector V. If yes show the 3 properties, if no then say why. a) Let V be the vector space of all continuously differentiable functions on the real line. U is the subset of V such that U = {f : f ' = 3f}. b) Let V be the vector space of...