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djverab [1.8K]
3 years ago
11

Please send ans in full​

Mathematics
2 answers:
Katen [24]3 years ago
7 0

Area of rectangle = l × b

l = 70cm

b = 8cm

Area = 70 × 8 = 560cm²

Area of rectangle = l × b

l = 78cm

b = 15cm

Area = 78 × 75 = 1170cm²

DanielleElmas [232]3 years ago
6 0

Answer:

Area of rectangle = l × b

Step-by-step explanation:

l =10 cm

b = 8 cm

Now ,

Area of rectangle = l × b

= 10 cm × 8 cm

= 80 cm^2

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Answer:

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Step-by-step explanation:

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Read 2 more answers
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Archy [21]

Answer:

2.5

Step-by-step explanation:

5/8 ÷ 1/4

Division sign changes to multiplication and the reciprocal of the divisior is used to multiply instead :

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3 0
3 years ago
What is the volume of the crate, in cubic feet? How much paint would be needed to paint the entire outside of the crate?
Law Incorporation [45]
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For surface are you would add up all the area of the faces
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3 0
3 years ago
An automobile shop manager timed 27 employees and recorded the time, in minutes, it took them to change a water pump. Assuming n
SSSSS [86.1K]

Answer:

Excel attached with the solution.

Step-by-step explanation:

Mean

\bar{x}=\frac{\sum x_{i}}{n}

Standard deviation

sd=\sqrt{\frac{\sum (x_{i}-\bar{x})}{n-1}}

Confidence interval

\bar{x} \pm z_{\alpha}*sd/\sqrt{n}

The formulas used are in the Excel file attached.

Download xlsx
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