Please fill in all the boxes! The area of rectangle WXYZ is 115.5 in. What is the perimeter of AXYZ? Explain your work,
4 in
W
O
YZ=
so YZinand XY = in. Use the Pythagorean Theorem to find XZ = in. The
Since ΔΧΥΡ
and PQ is the altitude of
perimeter of AXYZ is in.
(Round to one decimal place as needed.)

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?