Answer:
257.5 ft
Step-by-step explanation:
circumference of a circle with diameter=
pi*d
3.14*82=257.48
Hope this helps!
Answer:
x=4
Step-by-step explanation:
Here’s a picture if the formula. M is slope. X1 and Y1 are one coordinate and X2 and Y2 are the other.
Answer:
153.158 ; 177.642
Step-by-step explanation:
Given the following:
Sample mean (m) = 165.40
Sample standard deviation (s) = 21.70
Sample size (n) = 17
α = 98%
Confidence interval = m ± z(SE)
z at 98% = 2.326
SE = s/√n
SE = 21.70/√17 = 5.2630230
Hence,
Confidence interval = 165.40 ± 2.326(5.2630230)
165.40 - 12.241791498 OR 165.40 + 12.241791498
153.158 ; 177.642
