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zlopas [31]
3 years ago
10

*15. A model of a treehouse is made using a scale of 1 inch=3feet. What is

Mathematics
1 answer:
Korvikt [17]3 years ago
8 0

Answer:

16

Step-by-step explanation:

Multiply by the scale factor, in this case 3/1 or just 3

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A physical fitness association is including the mile run in its secondary- school fitness test. the time for this event for boys
liberstina [14]

Answer:

<u>The probability that a randomly selected boy in school can run the mile in less than 348 seconds is 1.1%.</u>

Step-by-step explanation:

1. Let's review the information provided to us to answer the question correctly:

μ of the time a group of boys run the mile in its secondary- school fitness test  = 440 seconds

σ of the time a group of boys run the mile in its secondary- school fitness test = 40 seconds

2. Find the probability that a randomly selected boy in school can run the mile in less than 348 seconds.

Let's find out the z-score, this way:

z-score = (348 - 440)/40

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Now let's find out the probability of z-score = -2.3, using the table:

p (-2.3) = 0.0107

p (-2.3) = 0.0107 * 100

p (-2.3) = 1.1% (rounding to the next tenth)

<u>The probability that a randomly selected boy in school can run the mile in less than 348 seconds is 1.1%.</u>

4 0
3 years ago
Read 2 more answers
I'm reallllly bad at this stuff pls help lol​
Tanya [424]

Answer:

answer would be D -2x=2x+3

5 0
3 years ago
Layla is going to invest $5,200 and leave it in an account for 15 years. Assuming the interest is compounded monthly, what inter
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6.5%

Step-by-step explanation:

I just know

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