What is the area of the figure to the nearest hundredth renter the answer in the box 2yd 4yd
1 answer:
Answer:
9.57 yd squared
Step-by-step explanation:
we can divide this figure into two shapes: a rectangle and a semi-circle
since we know the length and width of the rectangle, all we ahve to do is multiply them together to find the area: <u>8 yd squared</u>
for the semi-circle, we know the area is
raduis is half the diameter so 1 yd
<u />
<u>1.57 yd squared</u>
lastly, add the area of the two figures together 8+1.57
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Answer:
7/10 or 0.7
Step-by-step explanation:
The first step that you need to do is to convert 5.6 to a fraction. 5.6 can be rewritten as , which is equal to
.To multiply two fractions together, you simply need to multiply together the numerators and then the denominators.
. Hope this helps!
Answer:
A) CI = (57.12 , 59.48)
B) CI = (57.71 , 58.89)
C) CI = (57.53 , 59.07)
D) n = 239.63
Step-by-step explanation:
a)
given data:
mean,
standard deviation, σ = 3
sample size, n = 25Given CI level is 95%, hence α = 1 - 0.95 = 0.05
α/2 = 0.05/2 = 0.025,
Zc = Z(α/2) = 1.96
ME = 1.18
CI = (57.12 , 59.48)
b)
Given data:
mean,
standard deviation, σ = 3
sample size, n = 100
Given CI level is 95%, hence α = 1 - 0.95 = 0.05
α/2 = 0.05/2 = 0.025, Zc = Z(α/2) = 1.96
ME = 0.59
CI = (57.71 , 58.89)
c)
sample mean,
sample standard deviation, σ = 3
sample size, n = 100
Given CI level is 99%, hence α = 1 - 0.99 = 0.01
α/2 = 0.01/2 = 0.005, Zc = Z(α/2) = 2.58
ME = 0.77
CI = (57.53 , 59.07)
D)
Given data:
Significance Level, α = 0.01,
Margin or Error, E = 0.5,
σ = 3
The critical value for α = 0.01 is 2.58.
for calculating population mean we used
n = 239.63