Mathematics, 03.08.2019 05:30 genyjoannerubiera
Mrs. tiwari has two sons, one being exactly one year older than the other. her age is equal to the sum of the squares of the ages of her sons. if 4 years hence her age becomes five times the age of the elder son then find the ages of her sons.
Answers: 1
Mathematics, 21.06.2019 19:30
What is the effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4
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Aphrase is shown read the phrase and give me the answer
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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
Mrs. tiwari has two sons, one being exactly one year older than the other. her age is equal to the s...
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