A crane can lift safely a load of 1200 kg, correct to 2 significant figures. Find the greatest number of cases that the crane can lift safely in one load

In the past, professional baseball was played at the astrodome in houston, texas. the astrodome has a maximum height of 63.4 m. the height of a baseball t seconds after it is hit straight up in the air with a velocity of 45 ft/s is given by h = -9.8t2 + 45t + 1. will a baseball hit straight up with this velocity hit the roof of the astrodome? use the discriminant to explain your answer.

Find dy/dx using implicit differentiation ln(20+e^xy)=y

How many $20 bills do you need to have to make $280