9514 1404 393
Answer:
Will’s Wrapping Company needs 9,980 mm^2 of paper to wrap the chocolate bar.
Step-by-step explanation:
The formula for the area of a rectangular prism can be written ...
A = 2(LW +H(L+W))
A = 2(90·50 +3.5(90 +50)) = 2(4500 +3.5(140)) = 2(4990)
A = 9980 . . . square millimeters
Answer:
x = 2
Step-by-step explanation:
10x - 14 = 7x - 8
3x - 14 = -8
3x = 6
x = 2
Hope this helps!
Answer:
x²y²
Step-by-step explanation:
Refer to image below:
Answer:
(-3)(x+9)
Step-by-step explanation:
Answer:
(130.08, 139.92)
Step-by-step explanation:
Given that:
Mean (m) = 135
Standard deviation (σ) = 30
Sample size (n) = 100
α = 90%
The confidence interval value is obtained using the relation:
Mean ± Zcritical * (standard deviation / sqrt(n))
Zcritical at 90% = 1.64
standard deviation / sqrt(n) = 30 / sqrt(100)
= 30 / 10 = 3
Hence,
135 ± 1.64 * (3)
Lower limit : 135 - (1.64 * 3) = 130.08
Upper limit : 135 + (1.64 * 3) = 139.92
Hence,
Confidence interval = (130.08, 139.92)
