Range is 6 and the mode is 8
Answer:
2
Step-by-step explanation:
Answer:
Isolate the variable by dividing each side by factors that don't contain the variable.
x= 40
The speed of the airplane is the ratio of the distance to the time
The initial average speed of the airplane is approximately 110.8 mph
Reason:
Given parameters are;
The distance between Portland Oregon and Seattle Washington = 145 miles
The decrease in travel time when the speed is increase by 20 mph = minutes
The initial speed of the airplane, v = Required;
Solution;


Therefore;

Which gives;

Therefore
0.2·v² + 4·v - 2,900 = 0
v ≈ ±110.8 mph
The initial average speed of the airplane, v≈ ± 110.8 mph
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4 (of whatever your mathematical unit is)
you times 4500 by 0.0575 and then divide 1035 by that number and then you get 4.