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Maths Puzzle
Numerical Ability
Find the wquation of the ellipse that has the endpoints of its major axis at (2,-2) and (10,-2) and the endpoints of its minor axis at (6,0) and (6, -4).
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book Other Question
If prices go down by 20% by what % does your purchasing power increase? (Purchasing power means the amount of goods you can purchase on a fixed amount of money.)
I am a parent trying to help.
We need to solve for P
equation- A=P(1+r)^t
we are not sure how to move the exponent "t"
Thank you