If A is an obtuse angle and cos A = 3/5, find the values of tan A

In the figure, 'DeltaABC' is congruent to 'DeltaADC'. If the square ABCD is dilated by a factor of 2 to form A'B'C'D', what is the ratio of the area of A'B'C'D' to the area of ABCD? 2:1 3:1 4:1 5:1

A store charges $280 for a coat. This price is 40 percent more than the amount it cost the store to buy the coat. At the end-of-season sale, the store employees can purchase any remaining coats at 30 percent off the price that store paid for them.

Factor completely 5x2 - 40. 5 (x + 8) (x - 8) 5 (x2 - 8) 5 (x + 8) (x - 5 Prime

A rectangular prism has a volume of 2000 cubic inches. The height of this prism was changed from 5 inches to 20 inches to create a new rectangular prism. The other dimensions stayed the same.

The height of your father is 62 inches. What is the height to the nearest centimeter, if there are 2.54 centimeter in an inch?

Harry drives a delivery van and has several deliveries to make. He is in Horseshoe Bay and has a delivery to make in Highcliffe. What is the approximate distance (to the nearest kilometre), by road, between Horseshoe Bay and Highcliffe?

600,000+80,000+10 in a form

See an algebraic equation to solve the problem. The sides of a triangle are in the ratio 3 : 4 : 5. What is the length of each side if that perimeter of the triangle is 90 cm?

You are ordering packaging for a product. Should you be more concerned with volume or surface area?

Use the drop-down menus to complete each equation so the statement about its solution is true. No Solutions 2x+9+3x+x= One Solution 2x+9+3x+x= Infinitely Many Solutions 2x+9+3x+x=