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SSSSS [86.1K]
3 years ago
8

What is 13/56 + 5/7=

Mathematics
1 answer:
Darya [45]3 years ago
7 0
<span>The question is asking us to calculate : 13/56 + 5/7. To do this we have first to find the common denominator for these fractions. We know that 56 = 7 * 8, so the common denominator is 56. Then we will multiply the numerator and the denominator of the second fraction by 8. 5/7 * 8/8 = 40/56. Finally we will add : 13/56 + 40/56 = 53/56 and that is the final answer, which can not be simplified. Answer: 53/56</span>
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The volume of a solid cylinder is 1584 cubic cm and its height is 14 cm. The radius is
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Answer: 6 cm

Step-by-step explanation:

Hi, to answer this question we have to apply the next formula:  

Volume of a cylinder (V): π x radius ² x height  

Replacing with the values given and solving for v (Volume)  

1584 = π x r ² x 14

Solving for r:

1584 / (π x 14) = r²

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Feel free to ask for more if needed or if you did not understand something.

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3 years ago
Human body temperatures have a mean of 98.20° F and a standard deviation of 0.62°. Sally's temperature can be described by z = -
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Answer:

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Step-by-step explanation:

We have been given that human body temperatures have a mean of 98.20° F and a standard deviation of 0.62°. Sally's temperature can be described by z = -1.5.

To find Sally's temperature we will use z-score formula.

z=\frac{x-\mu}{\sigma}, where \mu = Mean, \sigma= Standard deviation.

Let us substitute our given values in z-score formula.

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Multiply 0.62 to both sides of equation.

0.62\times-1.5=0.62\times \frac{x-98.20}{0.62}

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Therefore, Sally's temperature will be 97.27 degrees Fahrenheit.

4 0
4 years ago
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