exam
Maths Puzzle
Numerical Ability
x-y=0
3x-y=2
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exam Other Question
It takes 175 seconds for Sarah to walk from her house to the store and back. Going there she walks at 3 ft/sec and on the way back at 4 ft/sec. How long did it take her to walk to the store?
Can someone tell me how to input a factorial (!) equation to find the first 5 terms into a TI-83?
For example: b{n}=((n+2)!)/n!
Thank you.