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irina1246 [14]
2 years ago
12

What does 1/3 plus 1/7 equil?

Mathematics
1 answer:
e-lub [12.9K]2 years ago
7 0
1/3 + 1/7 = ?
7/21 + 3/21 = 10/21
The answer is 10/21.
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Find the slope. A. y= -1/2x - 19/2.
Dmitry [639]

The equation of the line follows the following general structure:

y=mx+b

Where m is the slope of the line and b is the y intercept.

Find the corresponding values in the given formula, this way:

In the given equation, m has a value of -1/2, it means the slope is -1/2.

5 0
1 year ago
Select the most accurate statement regarding the normal distribution. Group of answer choices It is always the appropriate distr
PSYCHO15rus [73]

Answer:

There is a 95% chance that values will be within ±2 standard deviations of the mean.

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.

The Empirical Rule states that, for a normally distributed random variable:

Approximately 68% of the measures are within 1 standard deviation of the mean.

Approximately 95% of the measures are within 2 standard deviations of the mean.

Approximately 99.7% of the measures are within 3 standard deviations of the mean.

In this question:

According to the empirical rule, 95% of the measures are within 2 standard deviations of the mean. So the correct statement is:

There is a 95% chance that values will be within ±2 standard deviations of the mean.

4 0
3 years ago
Find the common ratio for the geometric sequence defined by the formula: an=40(2–√)n−1
Maksim231197 [3]

Answer:

b is the answer in your questions

3 0
2 years ago
Angle p is an obtuse angle. which could be the measure of angle p
Lunna [17]
Between 90 and 180 degrees
4 0
2 years ago
DIRECT VARIATION
aivan3 [116]
Y\alphax
y=kx
36=6k
k=6
42=6x
x=\frac{42}{6}
x=7
8 0
3 years ago
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