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3 years ago

The difference between 783 and 366

1 answer:

4 0

<span>First you take a piece of paper and you write the number 783. Directly below it, and in line with the numbers above it, you write the numbers 366. You will start at the right and work your way left. First you will look at the three. Since three is less than the six below it, you will take a "tenth" from the number to the left of the three. The 8 becomes a 7, and the 3 becomes 13. 13-6 = 7.
So, the bottom right number is a 7. Move one space to the left. Now you see 7 minus 6. That value is 1. Now working from right to left your answer so far is 7 and then 1.
Finally, you see seven minus 8, which is 4. Which brings your total to 417.</span>

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What is the value of (g o f)(3)?

Phantasy [73]

Answer:

- 13

Step-by-step explanation:

To evaluate (g ￮ f)(3), evaluate f(3) then use this value to evaluate g(x)

f(3) = 3 - 7 = - 4, then

g(- 4) = 4(- 4) + 3 = - 16 + 3 = - 13

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3 years ago

What’s the slope of the line?

Aleksandr [31]

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Yuri [45]

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gavmur [86]

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3 years ago

Read 2 more answers

You recently took a statistics exam in a large class. The instructor tells the class that the scores were Normally distributed,

Lunna [17]

Answer:

b. the area to the right of 2

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, which is also the area to the left of Z. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X, which is the area to the right of Z.

In this problem:

$X = 96, \mu = 72, \sigma = 12$

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

$Z = \frac{96 - 72}{12}$

$Z = 2$

Percentage who did better:

P(Z > 2), which is the area to the right of 2.

5 0

3 years ago