Five cakes cost 3.50 how much do seven cakes cost
2 answers:
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Use the equation for the area of a triangle:
where A = area, h = height of the triangle, and b = base of the triangle.
You know that h=18m and A=99
. Plug those values into the equation and solve for b, the base.
The base is 11m long.
where A = area, h = height of the triangle, and b = base of the triangle.
You know that h=18m and A=99
The base is 11m long.
Answer:
Step-by-step explanation:
Given Parameters
Mean, = 180
total samples, n = 20
Standard dev, = 30
= 1 - 0.95 = 0.05 at 95% confidence level
Df = n - 1 = 20 - 1 = 19
Critical Value, , is given by
a).
Confidence Interval, , is given by the formula
b).
Critical Value, , is given by
Confidence Interval, , is given by
= 180 +/- 14.0403
= 165.9597 < < 194.0403