4. The Torrid Zone on Earth is the area between the Tropic of Cancer and the Tropic of
Capricom (lines of latitude close to the equator). The distance between these two
tropics is about 3250 miles. You can estimate the distance as the height of a cylindrical
belt around the earth at the equator.
Part A: If the radius of the Earth is 3960 miles, then estimate the amount of surface area of
the Torrid Zone (cylinder shape). Approximate to the nearest thousands place.

Each cookie sells for $0.50 sam spent $90 on baking supplies and each cookie cost $0.25 to make how many cookies does sam need to sell before making a profit formula: sales> cost

What function has a range {yly< 5}? question on picture above^

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?