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hammer [34]
2 years ago
11

Question 6 of 10

Mathematics
1 answer:
Oksana_A [137]2 years ago
6 0

Answer:

A

Step-by-step explanation:

to subtract a function from the other you just subtract the expressions of the functions from each other :

(f-g)(x) = (5x - 2) - (2x + 1) = 5x - 2 - 2x - 1 = 3x - 3

so, A is correct.

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Step-by-step explanation:

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What expression is equal to 5/8?<br> pls help!
ehidna [41]

Answer:

10/16; 15/24; etc

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3 years ago
It was found that the mean length of 100 diodes (LED) produced by a company
Lelechka [254]

Using the normal distribution, it is found that there is a 0.0228 = 2.28% probability that a diode selected at random would have a length less than 20.01mm.

<h3>Normal Probability Distribution</h3>

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

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

  • It 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, which is the percentile of X.

In this problem, we have that:

  • The mean is of \mu = 20.05.
  • The standard deviation is of \sigma = 0.02.

The probability that a diode selected at random would have a length less than 20.01mm is the <u>p-value of Z when X = 20.01</u>, hence:

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

Z = \frac{20.01 - 20.05}{0.02}

Z = -2

Z = -2 has a p-value of 0.0228.

0.0228 = 2.28% probability that a diode selected at random would have a length less than 20.01mm.

More can be learned about the normal distribution at brainly.com/question/24663213

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2 years ago
At each scooter's top speed, Brand A scooter goes 2 miles per hour faster than Brand B. If after traveling at its top speed for
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Answer:

Step-by-step explanation:

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134=10x+20

134-20=10x+20-20

114=10x

11.4=x

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