Answer:
31.5
Step-by-step explanation:
Assuming that the lowest point and the highest point on the Ferris wheel are opposite each other, the difference of height will be the distance between the two points, and thus, the distance across fo the Ferris wheel. Divide this value by (2) to find the radius of the strucutre.
75 - 12
= 63
63 / 2
= 31.5
Answer:
14) 21.136505024965 m
15) 43.076759215619 km
Step-by-step explanation:
14)
let h be the height of the lighthouse:
tan(41.3) = 18.7/h
Then
h = 18.7÷tan(41.5)
= 21.136505024965 m
………………………………………
15)
90-71.4 =18.6
Let s be the distance that the plane flew
towards the south:
tan(90 - 71.4) = s/128
Then
tan(18.6) = s/128
Then
s = tan(18.6)×128
= 43.076759215619 km
Answer:
356
Step-by-step explanation:
We are given that p=0.7, and a 90% confidence interval. Also, we know the margin of error to be 0.04, the sample size is calculated as:
#The sample size is calculated as:

Hence, at least 356 apples must be sampled to get a true proportion with the 4% ME.
(21x- 19x) -10= 180
2x-10= 180
2x= 190
x= 95
hope this helps!
Answer:
b = 22
Step-by-step explanation:
3b-16=50
3b = 66
b = 22