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Number 7 is 16 and #6 is 29
and 8 is 45
The answer would be because you will be adding them anyway when multiplying
Answer: x = {+-sqrt(3), +-2*sqrt(3)}.
Step-by-step explanation:
(x^2 - 8)^2 + (x^2 - 8) = 20
▪︎ Let (x^2 - 8) be y.
Then,
y^2 + y = 20
y^2 + y - 20 = 0
D = b^2 - 4ac = 1 + 20*4 = 81 = 9^2
y1 = (-b - sqrt(D))/(2a) = (-1 - 9)/2 = -10/2 = -5
y2 = (-b + sqrt(D))/(2a) = (-1 + 9)/2 = 8/2 = 4
1) x^2 - 8 = -5
x^2 = 8 - 5
x^2 = 3
x = +-sqrt(3)
2) x^2 - 8 = 4
x^2 = 8 + 4
x^2 = 12
x = +-sqrt(12)
x = +-2*sqrt(3)
Answer: Amount of sales s = $6240 is the salary at ABC company is greater than at XYZ company.
Step-by-step explanation:
Since we have given that
Annual salary of ABC company = $45000
Annual salary of XYZ company = $38000
Rate of commission = 2%
Amount of salary after commission at XYZ company would be

So, Difference between is given by

Hence, Amount of sales s = $6240 is the salary at ABC company is greater than at XYZ company.