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salantis [7]
3 years ago
14

20 POINTS HURRY What is the value of c in the equation 3/5x=-45

Mathematics
2 answers:
fiasKO [112]3 years ago
7 0

Answer:

there is no c

Step-by-step explanation:

Sergio [31]3 years ago
3 0

Answer:

x= -1/75

Step-by-step explanation:

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3 years ago
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goblinko [34]

Answer:

The reason why standard deviation of the entire class is greater than standard deviation of males and females considered separately, is that mean values for males and females are different from each other.

Step-by-step explanation:

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Standard deviation represents the distance between each observation and the mean of the population (all observations). The formula for this parameter is:

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In this case you have that each height registered is an observation and the number of observations represents the N value. As you can see if the mean for males is different from that of females their standard deviation will be different too. Usually males have heigths greater than that of females (1.77 vs 1.64, in USA for example), and heights inside each group will be more similar than between groups. Then, when you mix all observation there will be an increase in standard deviation, because you are mixing very different heigths

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3 years ago
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I assume it is the last one, 3n^2, because the degree is the exponent, which is two and the three is the coefficient, which is next to the variable, plus it is a monomial, so there is only one term, eliminating the first two, the third one is just reversed. Therefore, the answer should be the last one. Hope this helps. :)
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2 years ago
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