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Nikitich [7]
3 years ago
5

A cylindrical oil tank holds 510 gallons when it is filled to its full

Mathematics
1 answer:
stepan [7]3 years ago
5 0

Answer:

Step-by-step explanation:

8 ft = (12 * 8) = 96 inches

3 ft 9 in = (12 * 3) + 9 = 45 inches

510 gallons to 96 inches = x gallons to 45 inches

510 / 96 = x / 45....cross multiply because this is a proportion

(96)(x) = (510)(45)

96x = 22950

x = 22950 / 96

x = 239.0625 rounds to 239.1 gallons <===

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Harrizon [31]

Answer:

1.3859

Step-by-step explanation:

The formula for Margin of Error is given as:

Margin of Error = Critical value × Standard Error

Critical value = z score

In the question, we are given a confidence interval of 95%.

Z score for a 95% confidence level is given as: 1.96

Hence, critical value = 1.96

Standard Error = σ / √n

Where n = number of samples = 98 chicken eggs

σ = Standard deviation = 7 milligrams

Standard Error = 7/√98

Standard Error = 0.7071067812

Hence, Margin of Error = Critical value × Standard Error

Margin of Error = 1.96 × 0.7071067812

Margin of Error = 1.3859292911

Therefore, the margin of error corresponding to a 95% confidence interval for the true mean cholesterol content, μ, of all such eggs is approximately 1.3859

8 0
3 years ago
Please help first answer will get brainliest!
scZoUnD [109]

Answer: -10

Step-by-step explanation: From the start of the equation, we know it must factor to something like (3m + x)(n+y), because the first term must be 3mn. Now, for the next term to be -6n, y must be -2, and for the third term to be 5n, x must be positive 5. So we end up with (3m+5)(n-2). If we factor this out, we get 3mn-6m+5n-10, meaning the final term is -10.

5 0
3 years ago
Solve using Elimination<br><br> 3x+y=-9<br> y=5x+7
valentinak56 [21]

Answer

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Step-by-step explanation:

Step: Solvey=5x+7for y:

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3x+5x+7=−9

8x+7=−9(Simplify both sides of the equation)

8x+7+−7=−9+−7(Add -7 to both sides)

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x=−2

Step: Substitute−2 for x in y=5x+7:

y=5x+7

y=(5)(−2)+7

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7 0
2 years ago
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DIA [1.3K]

Answer:

2

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the area of the radius 30 is 2827 and since 1 bucket can cover 1800 we will only need 2 buckets because we need a total of 2827 and 1 bucket covers 1800 so 2 buckets will cover 3600.

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aivan3 [116]

Answer:

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use this equation



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