A spacecraft 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 v= -0.0098t + c In 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 25, an exhaust velocity of 2.9 km/s, and a firing time of 20 s. Can the spacecraft achieve a
stable orbit 300 km above Earth?

step-by-step explanation:

this is not possible to solve with the info given.   you need at least an one angle somewhere.

the monthly balance will be $75,000

2. angles qrt and qst both measures 156 degrees.

step-by-step explanation:  

we have been given a diagram of a circle and we are told that measure of arc qvt is 156 degrees.  

we can see from our given diagram that angle qrt and angle qst subtends to arc qvt.

since we know that angles subtended by the same arc at the circumference are always equal.

by angle subtended by same arc theorem, measure of angle qrt and angle qst will be equal to the measure of arc qvt.

therefore, angles qrt and qst both measures 156 degrees and 2nd statement is the correct choice.

the answer is 62.8 cubic units