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Tcecarenko [31]
3 years ago
12

the area bathroom flor measures 2 yards by 3 yards and each custom tilemthat makes up rhe flooring is 1 1/2 square feet how many

tiles are needed to cover the floor
Mathematics
1 answer:
NeTakaya3 years ago
3 0
24 tiles
you take 2 yards and 3 yards and multiple them together getting 6 yards, then convert yards to feet resulting in 18 feet, divide that by 1.5 ft and you get 24 tiles.
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Ket [755]
The answer is D. 2 2/3

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3 years ago
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34 packages are randomly selected from packages received by a parcel service. The sample has a mean weight of 25.9 pounds and a
Vlad1618 [11]

Answer:

24.6 < μ < 27.2

Step-by-step explanation:

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.95}{2} = 0.025

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.025 = 0.975, so z = 1.96

Now, find the margin of error M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.96\frac{3.8}{\sqrt{34}} = 1.3

The lower end of the interval is the sample mean subtracted by M. So it is 25.9 - 1.3 = 24.6 pounds.

The upper end of the interval is the sample mean added to M. So it is 25.9 + 1.3 = 27.2 pounds.

So the correct answer is:

24.6 < μ < 27.2

4 0
3 years ago
Evaluate 4(a2 + 2b) - 2b when a = 2 and b = –2.
Snowcat [4.5K]
The answers 4, hope it helps
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SNACKS The dough that will be used to make a crescent roll is shown below. What is the area of the dough? Explain how you found
Artyom0805 [142]

Answer:

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How much string is out if a kite is 100 feet above the ground and the string makes an angle of 65° with the ground?
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5 0
3 years ago
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