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Oksanka [162]
2 years ago
6

Did I use the right equations to find x?

Mathematics
2 answers:
EleoNora [17]2 years ago
4 0

Answer:

first one yes

Step-by-step explanation:

second one its

39x+10=180

Aleks [24]2 years ago
3 0
First one is correct second one is not
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If y varies directly with X and Y equals 21 when X equals 3 find Y if x =5
Veronika [31]

Answer:

35

Step-by-step explanation:

y = k*x

21 = k*3

k = 7

x=5  .. y = 7 * 5 = 35

6 0
3 years ago
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For a population with m = 60, which of the following values for the population standard deviation would cause X = 68 to have the
trapecia [35]

Answer:

Option D) s = 1

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 69

X = 68

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

Computing z-scores for different standard deviation:

z_1 = \displaystyle\frac{68-60}{4} = 2\\\\z_2 = \displaystyle\frac{68-60}{3} = 2.667\\\\z_3= \displaystyle\frac{68-60}{2} = 4\\\\z_4 = \displaystyle\frac{68-60}{1} = 8

The standard deviation with highest z-score gives the most extreme position in the distribution.

Thus, the most extreme position of X = 68 in the distribution is given by a standard deviation of 1.

Option D) s = 1

8 0
3 years ago
Im doing a math test and i need help please
Brilliant_brown [7]

What is the question?

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2 years ago
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Step 3: Construct an angle and a perpendicular bisector.
Yuliya22 [10]

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