Nicole is planning for a party. She is planning for each person to consume 2 1/4 cups of lemonade. How many ounces of lemonade does she need to buy for 8 people?
Hint: 1 cup = 8 ounces

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Right triangle xyz has a right angle at vertex y and a hypotenuse that measures 24 cm. angle zxy measures 70º. what is the length of line segment xy? round to the nearest tenth. 8.2 cm 8.7 cm 22.6 m 25.5 cm

Can someone tell me if this is perpendicular? !