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Serhud [2]
3 years ago
15

A cherry tree is 6 feet tall a palm tree is 3 times as tall as the cherry tree Whuch model represents this problem

Mathematics
1 answer:
Brrunno [24]3 years ago
5 0
As tall as representa in 4th model in english Grammer
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The life of light bulbs is distributed normally. The standard deviation of the lifetime is 15 hours and the mean lifetime of a b
Anastaziya [24]

Answer:

0.8413 = 84.13% probability of a bulb lasting for at most 605 hours.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

The standard deviation of the lifetime is 15 hours and the mean lifetime of a bulb is 590 hours.

This means that \sigma = 15, \mu = 590

Find the probability of a bulb lasting for at most 605 hours.

This is the pvalue of Z when X = 605. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{605 - 590}{15}

Z = 1

Z = 1 has a pvalue of 0.8413

0.8413 = 84.13% probability of a bulb lasting for at most 605 hours.

7 0
3 years ago
Please help <br> Needed ASAP<br> WILL GIVE BRAINLIEST AND POINTS
borishaifa [10]

Answer:

Hope this helps :D

Step-by-step explanation:

Answer to question .2

Girls-226

Boys-295

Boys with glasses- 210

Girls with glasses- 104

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Difference between boys with glasses and no glasses-85

Difference between girls with glasses and no glasses-122

7 0
3 years ago
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(10 POINTS) if you can answer ASAP
Ludmilka [50]

Answer:

A. -0.93

Step-by-step explanation:

It is a negative due to the scatter plot line decreasing as the precipitation increases, which cancels out C & D. Then, it is decreasing rapidly, which portrays it as closer to -1 than 0, meaning the answer is A.

8 0
3 years ago
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Please help me on this ASAP am I right ?
Paraphin [41]

Answer:

No, you would graph the y-intercept, you do not graph the m-value (slope). The slope value is the rate that the y-value increases per unit of x. This is how you graph your line from the y-intercept

8 0
3 years ago
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Multi-Step Equation 2: Solve for x. Show your steps.<br> 6 - 5x + 2 = 3x - 12 + 2x
amm1812

Answer:

The answer is x = 8/5

Step-by-step explanation:

6 - 5x + 2 = 3x - 12 + 2x

4 - 5x = 5x - 12

4 = 10x - 12

16 = 10x

8/5 = x

4 0
2 years ago
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