Answer: x = -2
Step-by-step explanation:
Answer:<u>0.8, just add up and find the mean</u>
(x-3)^2 + (x+5)^2=9^2
(x^2-6x+9) + (x^2+10x+25)=81
2x^2+4x+34=81
2x^2+4x-47=0
From here just use quadratic formula
Answer:
6.23 gallons per square foot
Step-by-step explanation:
623/1000 = 6.23
Answer:
a) It cannot be concluded at the 99% confidence level that there is actually a difference between the true mean comfortable room temperatures for the two groups.
Step-by-step explanation:
