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Marat540 [252]
3 years ago
10

Rami uses chalk to draw a rectangle with a length of 4 1/2 yards.

Mathematics
2 answers:
ycow [4]3 years ago
4 0

Answer:

162 inches

Step-by-step explanation:

There are 3 feet in a yard.

There are 12 inches in a foot.

3*12=36

There are 36 inches in a yard.

The length of the rectangle is 4 1/2 yards.

Convert to improper fraction to multiply more easily.

4 1/2 = 9/2

Multiply. (Denominators together, numerators together)

9/2*36=324/2

Simplify

162

Makovka662 [10]3 years ago
3 0

Answer:

162 inches

Step-by-step explanation:

1 yard = 36 in

36 × 4 1/2 ( or 4.5) =162

Hope dis helps :3  o(* ̄▽ ̄*)ブ

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Y * x = 20<br><br> y + x = 9 <br><br> what numbers are y and x equal to?
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4 0
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A manufacturing company wants to use a sample to estimate the proportion of defective tennis balls that are produced by a machin
Kitty [74]

Answer:

The least number of tennis balls needed for the sample is 1849.

Step-by-step explanation:

The (1 - <em>α</em>) % confidence interval for population proportion is:

 CI=\hat p\pm z_{\alpha/2}\ \sqrt{\frac{\hat p(1-\hat p)}{n}}

The margin of error for this interval is:

 MOE= z_{\alpha/2}\ \sqrt{\frac{\hat p(1-\hat p)}{n}}

Assume that the proportion of all defective tennis balls is <em>p</em> = 0.50.

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<em>α</em> = 1%

Compute the critical value of <em>z</em> for <em>α</em> = 1% as follows:

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*Use a <em>z</em>-table.

Compute the sample size required as follows:

 MOE= z_{\alpha/2}\ \sqrt{\frac{\hat p(1-\hat p)}{n}}

       n=[\frac{z_{\alpha/2}\times \sqrt{\hat p(1-\hat p)} }{MOE}]^{2}

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Thus, the least number of tennis balls needed for the sample is 1849.

8 0
3 years ago
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