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Hi
The formula starts with x=9. So the formula would be x-3, than you get a different number and you fill x with that number do this over and over and you will get to -3 or even lower
180= x+24+6x+18+2x+30
180= 9x+72
108=9x
X=12
Upon slight rearrangement...
54xy+18y+45x+15 now factor 1st and 2nd pair of terms
18y(3x+1)+15(3x+1) which is equal to
(18y+15)(3x+1) and you can further factor the first binomial factor
3(6y+5)(3x+1)
Answer:
The 95% confidence interval is
.
Step-by-step explanation:
The information provided is:

The critical value for 95% confidence level is:

Compute the margin of error as follows:


Then the 95% confidence interval is:


Thus, the 95% confidence interval is
.