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bulgar [2K]
4 years ago
14

Write the equation of line in slope-intercept form, which is parallel to y=−2x+5 and passing through the point (1, −4).

Mathematics
1 answer:
sweet-ann [11.9K]4 years ago
6 0

Answer:

Step-by-step explanation:

y=−2x+5

m= -2

As required line is parallel to y=−2x+5, slope will be same for these two lines.

slope of required line = -2

m = - 2 ; (1, -4)

y - y₁ = m (x - x₁)

y - (-4) = -2 * (x - 1)

y + 4 = -2x + 2

2x - 2 + y +4= 0

2x + y + 2 =0

  y = -2x -2

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What’s 5/6 divided by 5/2 in fraction form
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The school band is ordering health bars to sell for a fundraiser. The company that sells the bars charges $0.40 per bar plus $20
Pepsi [2]

Answer: They can order from 0 to 449 bars, but no more.

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0.40x+20

To solve for x,  subtract 20 on both sides, we get

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In a study of 250 adults, the mean heart rate was 70 beats per minute. Assume the population of heart rates is known to be appro
klasskru [66]
This is a good question!

The steps are like follows:

Form the confidence level (99%), we calculate the "alpha" value
alpha=1-(99/100)=0.01

Now, calculate the critical probability (p-start)
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z-score could be calculated from p*,,,
z-score=<span>2.57583
(http://www.socscistatistics.com/tests/ztest/zscorecalculator.aspx)

Now, calculate the Margin of Error:
</span>standard<span> deviation = s
number of adults = n
</span><span>
ME=(z*s)/(sqrt n)=(</span><span>2.57583*12)/(sqrt 250) = 1.955

The confidence interval = mean +or- ME
                                      = 70+1.955</span>  or  70-1.955


So that we can conclude that <span>the 99% confidence interval for the mean beats per minute is 68.045 and 71.955

</span>

I hope you got the idea!

If you still need help, just let me know!





4 0
3 years ago
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