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Alenkasestr [34]
3 years ago
10

A machine used to fill​ gallon-sized paint cans is regulated so that the amount of paint dispensed has a mean of 125 ounces and

a standard deviation of 0.30 ounce. You randomly select 50 cans and carefully measure the contents. The sample mean of the cans is 124.9 ounces. Does the machine need to be​ reset? Explain your reasoning. ▼ Yes No ​, it is ▼ very unlikely likely that you would have randomly sampled 50 cans with a mean equal to 124.9 ​ounces, because it ▼ lies does not lie within the range of a usual​ event, namely within ▼ 1 standard deviation 2 standard deviations 3 standard deviations of the mean of the sample means.
Mathematics
1 answer:
charle [14.2K]3 years ago
3 0

Answer:

I had this question, photomath works.

Step-by-step explanation:

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THE TOPIC IS: AREA OF CIRCLES!! PLEASE HELP ME WITH THIS QUESTION!!! WHATS THE ANSWER?? I WILL GIVE YOU BRAINLIEST AND A THANKS!
emmainna [20.7K]

9514 1404 393

Answer:

  49π m² ≈ 154 m²

Step-by-step explanation:

The formula for the area of a circle is usually remembered as ...

  A = πr² . . . . . for radius r

Here, we're given the diameter. We can either figure the radius from the diameter and use this formula, or we can rewrite the formula to use the diameter.

  r = d/2 = (14 m)/2 = 7 m

  A = π(7 m)² = 49π m² . . . . . "exact" answer

Sometimes when multiples of 7 are involved, we like to use π ≈ 22/7. Using that value, the area is ...

  A = 49π m² = 49(22/7) m² = 154 m² . . . . . approximation using π = 22/7

Often, algebra problems insist on using the value π = 3.14. For that value, the area is ...

  A = 49π m² = 49(3.14) m² = 153.86 m² . . . . . approximation using π = 3.14

Using the "pi button" on your calculator, the numeric answer is ...

  A ≈ 49(3.14159265359) m² ≈ 153.938 m² . . . . using "pi button"

_____

If we rewrite the formula to use the diameter directly, then the area is ...

  A = π(d/2)² = (π/4)d²

For the diameter of 14 m, this is ...

  A = (π/4)(14 m²) = π(196/4) m² = 49π m² . . . . same as above

5 0
3 years ago
​ y=3x−5 y=x−1 ​ Is ( 2 , 1 )a solution of the system?
kotegsom [21]

Answer: Yes, (2,1) is a solution.

Point for : (2,1)

Equation form : x=2 , y=1

Step-by-step explanation: Solve for the first variable in one of the equations, then substitute the result into the other equation.

Hope this helps you out! ☺

6 0
4 years ago
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Darina [25.2K]

Answer:

3×(-2)-4×(-1)+11

=-6-(-4)+11

=9

this is what i think

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2 years ago
Please help me i dont know how to do any of this
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I think its... A (but not sure)
3 0
4 years ago
Write an equivalent expression by distributing the " sign outside the parentheses: 5n - (7.4p - 9.6​
liberstina [14]
5n - 7.4p + 9.6 is the answe
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