Answer:
x = 3 or x = 7
Step-by-step explanation:
X² - 8x + 14 = 2x - 7
x² - 8x + 14 - 2x + 7 = 0
Now we have a quadratic equation ;
x² - 10x + 21 = 0
-3 and - 7 gives a sum of - 10 and a product of 21
x² - 3x - 7x + 21 = 0
x(x - 3) - 7(x - 3) = 0
(x - 3) = 0 or (x - 7) = 0
x = 3 or x = 7
Answer:
Because if you give the power of 2 to all of them you get a different number
1. 20 squared+ 21 squared = 841
Answer to number 1
Answer: number three is c. Not 100% positive, but I’m pretty sure
Step-by-step explanation:
Answer:
Individual ratings variation from average ratings for apple devices, is on average 3.762.
Step-by-step explanation:
Standard Deviation is a measure of dispersion, around the average value (mean).
Formula : <u>Σ I (x - u)^2 I </u> , where u = mean, n = no. of units
n
Standard Deviation of the ratings for Apple devices is 3.762, implies that :-
Individual ratings variation from average ratings for apple devices, is on average 3.762.
