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klemol [59]
3 years ago
15

when adding two rational numbers tell what the sign of the sum will be if one rational number is positive and one is negative

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
8 0

Answer:

True

When you add two negative numbers the sum is always negative ex.

When you add two numbers with different signs get the difference and get the sign by the larger absolute value ex.

Step-by-step explanation:

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About 2% of the population has a particular genetic mutation. 500 people are randomly selected.
S_A_V [24]

The standard deviation for the number of people with the genetic mutation in such groups is 3.1305.

<h3>Standard Deviation</h3>

In statistics, the standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean of the set, while a high standard deviation indicates that the values are spread out over a wider range.

Let X be the number of people with genetic mutation is a group of 500,

The formula of standard deviation is given as

SD=\sqrt{n*p(1-p)} \\SD=\sqrt{500*0.02*0.98} \\SD=3.1305

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1 year ago
Divide 21 by g. Then, subtract 6.
IrinaVladis [17]
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3 years ago
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Answer:

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Always write it in the variables perspective.

n=-12

7 0
4 years ago
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