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Margaret [11]
2 years ago
11

Question 4 of 25

Mathematics
1 answer:
Gnoma [55]2 years ago
7 0

Answer:

Step-by-step explanation:

We are looking for P(58 < x < 64). We need to find the percentage to the left of the z-scores for each of these numbers. To find the z scores, use the formula:

z=\frac{x_i-\bar{x}}{\sigma}

z=\frac{58-62}{4} which gives us a z-score of -1. The percentage of numbers to the left of a z-score of -1 is .1586553

Now for the other z-score:

z=\frac{64-64}{4} which gives us a z-score of .5. The percentage of numbers to the left of a z-score of .5 is .69146246

The lower percentage subtracted from the higher gives the area in question:

.69146246 - .1586553 = .53280716, or as a percentage, 53.3%, choice A.

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astra-53 [7]

Answer:

C = 2\pi r

C = \pi d

Step-by-step explanation:

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Required

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3 years ago
Solve 4(x-3) - 2(x - 1) &gt;0.<br> { xl x&gt;-5)<br> {xl x&gt;5]<br> {xl x&lt;-5)<br> {xl x&lt;5}
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Answer:

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Marcus is making homemade barbecue sauce. The recipe calls for 3 cups of ketchup for every 1/2 cup of mustard. What is the rate
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Answer: 6 cups of ketchup per cup of mustard

Step-by-step explanation:

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