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LUCKY_DIMON [66]
3 years ago
8

At a TV.repair shop, the amount charged for labor depends on the time the

Mathematics
1 answer:
Pepsi [2]3 years ago
6 0

Answer:

A. Amount(hours worked)  

Step-by-step explanation:

Function notation is a way of converting a written description of a function to a concise form that is easy to read.

It is another way of representing the y-value in a function, y = ƒ(something)

Let's convert the word expression to function notation:

  • "The amount charged for labour depends on the time the repair technician works."
  • "The amount depends on the hours worked."
  • "The amount is a function of the hours worked."
  • Amount = amount(hours worked)
  •           y = a(h)

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. If IQ scores are normally distributed with a mean of 100 and a standard deviation of 5, what is the probability that a person
bulgar [2K]

Answer:

2.28% probability that a person selected at random will have an IQ of 110 or greater

Step-by-step explanation:

Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore 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 pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 100, \sigma = 5

What is the probability that a person selected at random will have an IQ of 110 or greater?

This is 1 subtracted by the pvalue of Z when X = 110. So

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

Z = \frac{110 - 100}{5}

Z = 2

Z = 2 has a pvalue of 0.9772

1 - 0.9772 = 0.0228

2.28% probability that a person selected at random will have an IQ of 110 or greater

5 0
3 years ago
25x25 in exponential form
Alexxandr [17]
25 to the 2 or 25^2

Explanation:
There are 2 25’s 25x25, so the amount of exponents is the same as the number of repeated numbers
3 0
2 years ago
3 (x-1) - 8 = 4 (1+x) + 5 Solve it please?
tigry1 [53]

Answer:

X= -20

Step-by-step explanation:

4 0
3 years ago
The state of Vermont can be modeled by a quadrilateral like the one shown. Which is the perimeter of the quadrilateral?
Sveta_85 [38]

Answer:

440 miles

Step-by-step explanation:

Perimeter of a quadrilateral, P :

P = a + b + c + d

Which is the sum of all the sides ;

From the diagram attached ;

Perimeter of the quadrilateral is :

(170 + 160 + 80 + 30) = 440 miles

4 0
3 years ago
Help with these questions!! I need help! I will mark brainliest!!
g100num [7]

Answer: I believe it's 85° i have no explanation and am sorry if it's wrong x

Step-by-step explanation:

4 0
3 years ago
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