Jennie's trips Jennie makes 95 trips. She gets lost 25 times with a map and 20 times without. She
takes a map on 45 trips. Fill in the frequency tree.
12
lost
Q2
How many times does
Jennie find her way?
not lost
13
[2]
map
O O O O
How many times does
Jennie find her way
without a map?
no map
lost
not lost
[2]
Total
10
23
Marki
Mark it

News cameras take an overhead picture of a crowd at an outdoor event journalist then count the total number of people in the picture and use the sample of estimate the total number of people in the crowd this process is an example of

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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?