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3 years ago

The inverse of f(x)=x^2 is also a function t/f

Mathematics

2 answers:

bazaltina [42]3 years ago

7 0

Answer:

False

Step-by-step explanation:

The inverse of f(x) = x^2 is not a function, since the graph fails the vertical line test: a vertical line drawn thru the graph intersects it in 2 places (except at (0,0) ).

vodka [1.7K]3 years ago

3 0

The Answer is false.

the function f (x) = x 2 is NOT one-to-one, and therefore cannot have an inverse.Therefore, the function f (x) = x 2 does NOT have an inverse.

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The diameters of ball bearings are distributed normally. The mean diameter is 123 millimeters and the standard deviation is 4 mi

Mrac [35]

Answer:

0.0668

Step-by-step explanation:

Problems of normally distributed samples can be 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:

$\mu = 123, \sigma = 4$

Find the probability that the diameter of a selected bearing is greater than 129 millimeters.

This is 1 subtracted by the pvalue of Z when X = 129. So

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

$Z = \frac{129 - 123}{4}$

$Z = 1.5$

$Z = 1.5$ has a pvalue of 0.9332

1 - 0.9332 = 0.0668

0.0668 = 6.68% probability that the diameter of a selected bearing is greater than 129 millimeters.

8 0

3 years ago

Describe how you would plot a line that has a starting point at (2,-3) and a slope of 3/4

Nadya [2.5K]

You put the first cross on (2,-3) then go 3 to the right and 4 up. If it was a negative 3 you would go to the left. Negative 4 you would go down.

6 0

3 years ago

18 cards are numbered from 11 to 29 if one card is chosen at random, what is the probability that if contains the digit

Mumz [18]

What digit? 2?
If it’s two:

“There are 29–10 = 19 cards in total. There are 11 cards that has at least one 2 on it (12, 20–29). The probability of choosing a card with a 2 on it is 11/19.”

5 0

3 years ago

If a cone has a height of 16 feet and a volume

IgorLugansk [536]

^^^^^^^^^^^^^^^^^^^^^^^

6 0

3 years ago

Whats the unit rate for 4/5 chapters in 1/4 hour

Helga [31]

Answer:

Unit Rate: 16/5 chapters per hour

Step-by-step explanation:

4/5 divided by 1/4 = 4:5, 4:1 = 4/5 x 4/1 = 16/5

8 0

3 years ago