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ki77a [65]
3 years ago
13

5/9v-1/3=2/3v+1/3 simple explanation with all steps

Mathematics
1 answer:
Mrrafil [7]3 years ago
4 0
1)ok so first line you transpose to group like terms so the V is on one side of the equal sign and the normal numbers on the other.
2) at all like terms so for the V and the normal you add by fractional addition or subtraction
3)divide both sides of the equation by the coefficient of V which is 7/12
4) finally divide  by the fraction which in other wqords is multiply
             N ur done (Y)
             good luck
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Iq scores are normally distributed with a mean of 100 and a standard deviation of 15 what is the probability that a randomly sel
a_sh-v [17]
So we are given the mean and the s.d.. The mean is 100 and the sd is 15 and we are trying the select a random person who has an I.Q. of over 126. So our first step is to use our z-score equation:

z = x - mean/s.d.

where x is our I.Q. we are looking for

So we plug in our numbers and we get:

126-100/15 = 1.73333

Next we look at our z-score table for our P-value and I got 0.9582

Since we are looking for a person who has an I.Q. higher than 126, we do 1 - P. So we get

1 - 0.9582 = 0.0418

Since they are asking for the probability, we multiply our P-value by 100, and we get 

0.0418 * 100 = 4.18%

And our answer is

4.18% that a randomly selected person has an I.Q. above 126
Hopes this helps!
6 0
3 years ago
When you divide with negative exponents, you divide the rational numbers like normal and then you add the exponents.
Doss [256]

Answer:

the same as multiplying them, except you're doing the opposite: subtracting where you would have added and dividing where you would have multiplied. If the bases are the same, subtract the exponents. Remember to flip the exponent and make it positive, if needed.

Step-by-step explanation:

6 0
3 years ago
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9x

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3 years ago
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Answer:

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Step-by-step explanation:

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Hey! :)

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"A" is the answer.

~'Manda
6 0
3 years ago
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