The diagram is a straightedge and compass construction. A is the center of one circle, and B is the center of the other.

Explain why segments AC, CB, BD, and AD are all the same length.
BIVA-AI EX * E 12pt
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One positive number is 9 more than twice another. if their product is 95, find the numbers

In an improper fraction, is the numerator equal to, less than, or greater than the denominator

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?