Here's the equation:
1459.75 - (359.45 + 125 + 299.35) + 375
1459.75 - 783.8 + 375
1459.75 - 408.8
Penelope has $1050.95
$1.98 divided by 2 is $0.99
So the sale price is $0.99
All the sides are 20 cm resulting in the perimeter being 80
Answer:
x * 3/8(s) = 5/4
5/4 ÷ 3/8(s) = x
Step-by-step explanation:
Answer: The 95% confidence interval is approximately (55.57, 58.43)
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Explanation:
At 95% confidence, the z critical value is about z = 1.960 which you find using a table or a calculator.
The sample size is n = 17
The sample mean is xbar = 57
The population standard deviation is sigma = 3
The lower bound of the confidence interval is
L = xbar - z*sigma/sqrt(n)
L = 57 - 1.960*3/sqrt(17)
L = 55.5738905247863
L = 55.57
The upper bound is
U = xbar + z*sigma/sqrt(n)
U = 57 + 1.960*3/sqrt(17)
U = 58.4261094752137
U = 58.43
Therefore the confidence interval (L, U) turns into (55.57, 58.43) which is approximate.
