Mathematics, 23.04.2021 07:10 bapefer498
Amanda is wrapping presents for some of her friends. Each present is in the shape of a cube. She wraps the presents so that there is no overlaps. If each present has side lengths of 8 inches and she uses a total of 2688 square inches of paper, how many presents did she wrap?
Answers: 2
Mathematics, 20.06.2019 18:04
In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ab=9, and ac=12, find hc.
Answers: 3
Mathematics, 21.06.2019 16:30
What could explain what happened when the time was equal to 120 minutes
Answers: 2
Mathematics, 22.06.2019 00:00
Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?
Answers: 3
Amanda is wrapping presents for some of her friends. Each present is in the shape of a cube. She wra...
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