Let n be the number 18=60% of n
18=0.6n
18/0.6=n
30=n
I think it should be option d
I think they both increased by 3 and the new dimensions is 8 ft by 7 ft
The population standard deviation, σ = 1.68, the sample standard deviation, s = 1.95, the sample mean =7.23, and the sample size, n = 39.The test statistics is given by
T=(n - 1) (s / σ)²
= (39 - 1) (1.95 / 1.68)²
= 38 (1.35)= 51.196
For this question, the equation I got was (x+3)^2 + (y-6)^2 = r^2.
