To find the mean, you have to add all the numbers and divide by how many numbers there are in total.
The mean is
The mean of those seven numbers is 54.29
The mean is
The mean of those seven numbers is 54.29
What value of x is in the solution set of -5x - 15 > 10 + 20x?
1 answer:
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First compute the discriminant delta:
9^2-4*1*20=1.
Using the quadratic formula, we get the solutions:
the solutions are then -4 and -5.
9^2-4*1*20=1.
Using the quadratic formula, we get the solutions:
the solutions are then -4 and -5.