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omeli [17]
3 years ago
13

Test scores are normally distributed with a mean of 68 and a standard deviation of 12. Find the z – score for a grade of 74. Rou

nd your answer to two numbers after the decimal.
Mathematics
1 answer:
Tasya [4]3 years ago
6 0

Answer:

gang nem

Step-by-step explanation:

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(-13xy+2y)+(2x-5xy-15y)
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Answer:-18xy+2x-13y

Step-by-step explanation: combine like terms

3 0
2 years ago
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<img src="https://tex.z-dn.net/?f=4%20%5Cfrac%7B2%7D%7B3%7D%20%20%20%2B%205x%20%3D%207%20%20-%202x" id="TexFormula1" title="4 \f
Delicious77 [7]

4 2/3+5x=7-2x

Add 2x to both sides.

4 2/3+7x=7

Subtract 4 2/3 on both sides.

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7x=7/3

Divide by 7 on both sides.

x=1/3

answer: x=1/3

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3 years ago
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John and his three brothers share a cell phone plan. the cell phone company charges a flat rate of $90 per month, which of the f
Alla [95]
Ok...so u have 4 people sharing this plan...they each pay for their own data..however, the $ 90 flat rate is split between them equally.
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If a car can go from 0 to 60 mi/hr in 8.0 seconds, what would be its<br> acceleration ?
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Al Bank is worried about financing of his new home. The house sells for $490,000. If he puts down 20 percent, what will Al's mon
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