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Alexxx [7]
3 years ago
10

If f (x) = ( 3 - x)² . what is f (5)?​

Mathematics
1 answer:
natali 33 [55]3 years ago
5 0

Answer:

4

Step-by-step explanation:

(3 - 5)^2

-2^2 = 4

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What’s the inverse of the equation
alexgriva [62]

Answer:

change the y with the x and solve for y making it the last one

Step-by-step explanation:

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3 years ago
What is the slope of the line that passes through the point (9,4) and (3,9)?​
Fantom [35]

Step-by-step explanation:

m is for slope of the line that passes through

m =  \frac{y_2 - y_1}{x_2 - x_1}

m =  \frac{9 - 4}{3 - 9}

m =  \frac{5}{ - 6}  =  -  \frac{5}{6}

8 0
2 years ago
81x-27=81x−27<br><br> what<br> is the answer
kykrilka [37]

The answer is all real numbers for x

because simplifying, you get both sides are equal

5 0
2 years ago
Read 2 more answers
I need help please help
Helga [31]

Answer: J x=6; slope is undefined

Step-by-step explanation:

8 0
3 years ago
Shoe sizes for men in the United States are known to follow a normal distribution. If you calculated the z-score of a man's shoe
anastassius [24]

Answer:

This value means that his shoe size is 2.9 deviations above the population mean.

And we can find the approximate percentile for his measure like this:

P(Z

This correspond to the 99.8 percentile, so then his shoe size is 99.8% above all the shoe sizes.

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".  

Solution to the problem

Let X the random variable that represent the shoe size of a population, and for this case we know the distribution for X is given by:

X \sim N(\mu,\sigma)  

Where \mu represent the mean and \sigma the population standard deviation.

For this case we know that a man obtain a z score of z=2.9

This value means that his shoe size is 2.9 deviations above the population mean.

And we can find the approximate percentile for his measure like this:

P(Z

This correspond to the 99.8 percentile, so then his shoe size is 99.8% above all the shoe sizes.

3 0
3 years ago
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