6 7 A sample of size n=92 is drawn from a normal population whose standard deviation 7.6 The sample mean is x=48.18. - Part 1 of 2 (a) Construct a 95% confidence interval for u. Round the answer to at least two decimal places. ​

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

answer:

idk

step-by-step explanation:

i would love   to but there is no graph shown

step-by-step explanation:

i am so sorry