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Pavlova-9 [17]
3 years ago
14

Maria solved the equation -5 n = -12. Her answer was n = 2. She is fairly confident about her answer, but wants to do a quick ch

eck of her solution using estimation. Which of the following shows a good check of her answer?
Mathematics
1 answer:
777dan777 [17]3 years ago
3 0
Plug in 2 to see if she is correct. Hope this helps!
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Claim: Fewer than 92% of adults have a cell phone. In a reputable poll of 1207 adults, 85% said that they have a cell phone. Fin
lina2011 [118]

Answer:

- 6.547

Step-by-step explanation:

Given that:

Sample size (n) = 1207

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p0 = 0.92

The test statistic :

Z = (p - p0) / √(p0(1 - p0) / n)

Z = (0.85 - 0.92) / √(0.92(1 - 0.85) / 1207)

Z = - 0.07 / √(0.92(0.15) / 1207)

Z = - 0.07 / √0.0001143

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Z = - 6.5465446

Z = - 6.547

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2 years ago
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6 0
3 years ago
Select "Rational" or "Irrational" to classify each number.
xenn [34]

Answer:

rational rational irrational

Step-by-step explanation:

6 0
3 years ago
What’s the correct answer for this question?
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ANSWER

l

Or

Or

EXPLANATION

The given line has slope,

and

We can find the equation in the point slope form, which is given by,

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We can also simplify further to get,

We make y the subject to get,

This is called the slope intercept form.

We could also write in standard form to get

Or

5 0
3 years ago
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