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____ [38]
3 years ago
5

What is the inverse of the function f(x) = x + 2?

Mathematics
1 answer:
wolverine [178]3 years ago
8 0
Turn f(x) into y so the equation is y=x+2. Now switch their places so it is x=y+2. Now solve for y. The answer is y=x-2.
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Surface area of a box 12 x 6 x 9.5
Ber [7]

9514 1404 393

Answer:

  486 square units

Step-by-step explanation:

Use the surface area formula with the given numbers.

  SA = 2(LW +H(L +W))

  SA = 2(12·6 +9.5(12 +6)) = 2(72 +9.5(18)) = 486

The surface area of the box is 486 square units.

4 0
3 years ago
Convert 9.56 into a percentage
Drupady [299]
9.56 can be split into 9 , 0.5 , and 0.06

therefore the percentage will be 956%
4 0
3 years ago
Read 2 more answers
There is only one positive integer which is exactly twice the sum of its digits. find this 2 digit number
ad-work [718]
There is only one positive integer which is exactly twice the sum of its digits. find this 2 digit number

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3 years ago
Write -2i + (9 - 3i) - (6 - 10i) as a complex number in standard form.
Wittaler [7]
The answer is b for your question
4 0
2 years ago
Data are drawn from a bell-shaped distribution with a mean of 25 and a standard deviation of 4. There are 1,000 observations in
Delicious77 [7]

Answer:

a. 97.72% of the observations are less than 33

b. Approximately 977 observations are less than 33.

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.

Mean of 25 and a standard deviation of 4.

This means that \mu = 25, \sigma = 4

a. Approximately what percentage of the observations are less than 33?

The proportion is the p-value of Z when X = 33. So

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

Z = \frac{33 - 25}{4}

Z = 2

Z = 2 has a p-value of 0.9772

0.9772*100% = 97.72%

97.72% of the observations are less than 33.

b. Approximately how many observations are less than 33?

Out of 1000:

0.9772*1000 = 977.2

Approximately 977 observations are less than 33.

6 0
2 years ago
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