Step-by-step explanation:
plz check the attached for full explained solution
Answer:
(x+2)²+(y+2)²=36
Step-by-step explanation:
given r=6
center is (-2,-2)
the equation becomes
(x-(-2))²+(y-(-2))² = 6²
on simplifying we get the answer
Answer: Option 'c' is correct.
Step-by-step explanation:
Since we have given that
n = 240
mean = 22.3 hours
standard deviation = 6 hours
At 99% level of confidence, z = 2.58
So, interval would be

Hence, Option 'c' is correct.
Circle with the radius r=2 and the center (2,2)
Circle with the radius r=2 and the center (1,1)
(I’m out even sure that’s what i was supposed to do i didn’t even understand the question but maybe its correct NOT SURE )