Iwill give you a crown

a cardboard box is shaped like a rectangular prism. the box has a base of 81 square inches and a height of 6 inches.

what is the volume of the box?

87 in³

324 in³

486 in³

2,916 in³

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?

Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .

The marked price of an article is 25% above its selling price and the cost price is 30% less than its marked price . find the discount percent and gain percent. only a brainlest can solve it i will mark you brainlest