Answer:
Part 1)
Part 2)
Step-by-step explanation:
The correct question in the attached figure
Part 1)
we have the formula
where
e the eccentricity
a is the length of the semi-major axis
b is the length of the major axis
solve for a
That means
Isolate the variable a
squared both sides
subtract 1 both sides
Multiply both sides by a^2
Divide both sides by (e^2-1)
Rewrite
square root both sides
simplify
Part 2) we have
Solve for a
substitute in the formula of part 1)
Answer: 45
Step-by-step explanation:
First, your whole number has to become a fraction. Whatever whole number you get or have to use, its denominator (the bottom number of a fraction) will always be 1. Then, you multiply across. You may have to simplify.
Ex:
2/5 x 2
2/5 x 2/1
= 4/5
Here, to find the average rate of change, you would simply divide 270 by 63. And when that is done, you would get a long decimal. 4.285714285714286
And since you obviously can't put in such a long decimal as your answer, you would round it instead. Once rounded, you would end up with 4.29 (because the number after 8 is five, which rounds up, which would turn the 8 to 9.)
24 divided by 12 equals 2
12 multiplied by 2 equals 24
Hope this answers your question, not worded very well