ACTIVITY
Challenge: Guess the Ordered Pair
Write the correct answers.
1) • I am an integer in Quadrant II.
• My x-coordinate is less than -1.
• My y-coordinate is more than 2.
• My x-coordinate is greater than -3.
• The sum of the absolute values of my coordinates is 5.
Who am I?
(,
)
Plot me on the coordinate graph.
1L
-6
-5
-4
-3
-2
-1
I
1
2
3
4
5
6

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?