Answer:
no
Step-by-step explanation:
at firth hr - 15×2=
2 nd hr - 60×2
and so on,it takes more than 8 hr
<span>You have to calculate z-scores for each of these values and then compare them with what is needed for the 80%tile on a Normal curve.
z = (value - mean)/(standard deviation) = (value-60.0)/0.5.
z= 1 has 84% of the values smaller.</span>
4x² - 25 = 0
4x² - 10x + 10x - 25 = 0
2x(2x) - 2x(5) + 5(2x) - 5(5) = 0
2x(2x - 5) + 5(2x - 5) = 0
(2x + 5)(2x - 5) = 0
2x + 5 = 0 U 2x - 5 = 0
- 5 - 5 + 5 + 5
2x = -5 2x = 5
2 2 2 2
x = -2¹/₂ x = 2¹/₂
Solution Set: {-2¹/₂, 2¹/₂}
Answer:
4 , 2, 8, 4 ..............
It is -3 over 2 i know this because i had this question on my test and i got it right