1.53*10^10 because the total value would = 17,000(9.0*10^5) which is equals, when multiplied, 15300000000. Which is equivalent to 1.53*10^10 <span />
2/5 + (-4/5) = -2/5!
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It is asking you to find the sum of k^2 - 1 from k=1 to k=4. Since that is only 4 numbers, calculating the sum by hand wouldn’t be that bad.
(1^2 - 1) + (2^2 - 1) + (3^2 - 1) + (4^2 - 1) = 26
The easier way to find the sum is to use a few simple formulas.
When we have a term that is just a constant c, the formula is c*n.
When we have a variable k, the formula is k*n*(n+1)/2.
When we have a squared variable, the formula is k*n*(n+1)*(2n+1)/6.
In this case, we have a squared variable k^2 and a constant of -1.
So plug in n=4 to the formulas:
4*5*9/6 - 1*4 = 26
The answer is 26
Answer: Im pretty sure it would be 67, find area of each side then add
Answer:
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Step-by-step explanation:
