Answer: 126
Step-by-step explanation:
As per given , we have
Prior Population proportion :
Significance level :
Critical value for 95% confidence interval (using the z-value table) =
Margin of error (maximum error):
Formula to find the sample size :
Therefore , the required minimum sample size = 126
Answer:
Division.
Step-by-step explanation:
In order to get to 0.71938, you have to divide 719.38 by 1000.
719.38 / 1000 = 0.71938
Answer:
48π + 120
Step-by-step explanation:
Lateral area of a cylinder = Ch = πdh
1/4 of the lateral area = 12π(10)/4 = 30π
Bottom area = 6(10) = 60
Front area = 6(10) = 60
Area of base = πr^2/4 = 36π/4 = 9π
Area of two bases = 18π
Total area = 18π + 30π + 60 + 60 = 48π + 120
Answer:
94cm
Step-by-step explanation:
wingspan length
60 meters 70.5 m
----------------- = ----------------
80 cm x
Cross multiply
(60 m)x = (70.5 m)(80 cm)
Solve for x by dividing both sides of equation by 60 m:
x = (70.5 m)(80 cm) / (60 m) = 94 cm
The length of the model is 94 cm.
Vertical angles must be, out of the options stated, A ) congruent and C ) have the same vertex