Answer:
n = 484
Step-by-step explanation:
If Confidence Interval CI = 95 % then α = 5% and α/2 = 2,5 %
α/2 = 0,0125
MOE for normal distribution is:
MOE = z * σ/√n
For α/2 = 0,0125 ⇒ z(score) = -2,2
MOE = |-2,2| * 4/√n
0,4*√n = 8,8
√n = 8,8 / 0,4
√n = 22
n = 484
Answer:
4,-5 is your answer
Step-by-step explanation:
it is correct
3.6m − 2.7 = −1.8m
Subtract 3.6m from both sides:
-2.7 = -5.4m
Divide both sides by -5.4:
m = -2.7 / -5.4
m = 0.5
Answer:
0.65 ounces
Step-by-step explanation:
divide 22.1 by 34
Area of triangle is 435 sq cm.
