1 The Venn diagram shows Set T, a subset of the real numbers.
Real numbers
Rational
numbers
Irrational numbers
Whole
numbers
Based on the Venn diagram, which statement about any number in Set T is true?
А Any number in Set T is a whole number but not a rational number.
B Any number in Set T is a rational number but not a whole number.
Any number in Set T is a rational number and an irrational number.
D
Any number in Set T is a whole number and an irrational number.
с

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?