Mathematics, 29.03.2021 20:00 ddmorse2015owug6f
Într-o tabără 15 copii mănâncă înghețată zilnic, 11 mănâncă înghețată la două zile, iar ceilalți nu mănâncă înghețată. Dacă azi au mâncat înghețată 18 copii, câți vor mânca mâine înghețată
Answers: 3
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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?
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Mathematics, 22.06.2019 00:20
Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.
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Într-o tabără 15 copii mănâncă înghețată zilnic, 11 mănâncă înghețată la două zile, iar ceilalți nu...
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