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Maths Puzzle
Numerical Ability
I need your help, A line in the Cartesian plane passes through the points (1,3) and (5,4). What is the slope of the line? Please help me!
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f(n)=1^2+2^2+3^2+...+n^2 it turns out that f is a polynomial of degree x in n. Figure out the coefficients of f: f(n)=___n^3+___n^2+___n+___.
QUESTION: Conor is scuba diving at a depth of 52.8 feet below sea level. 30 mins later, he is at a depth of 40 feet below sea level. What is his change in depth? Did he go up or down?
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