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SashulF [63]
3 years ago
6

(5,-7) (5,3) finding slope using formula.

Mathematics
1 answer:
aleksley [76]3 years ago
6 0

m = (y2 -y1)/ (x2-x1)

m = (3-(-7))

       --------

       5-5

 The slope is undefined since the denominator is zero

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b. Find a 99% confidence interval for mean age of ICU patients using the facts that, in the sample, the mean is 57.55 years and
rjkz [21]

Answer:

<em>99% of confidence intervals for mean age of ICU patients</em>

<em>(53.8920 , 61.2079)</em>

Step-by-step explanation:

<u><em>Explanation</em></u>:-

<em>Given sample mean </em>x^{-} = 57.55<em></em>

Given standard error is determined by

                                                             S.E =\frac{S.D}{\sqrt{n} }

<em>Given data standard error = 1.42</em>

<em>99% of confidence intervals for mean is determined by</em>

(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} } )

Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.05} = 2.576

(x^{-} - 2.576 S.E , x^{-} + 2.576 S.E)

(57.55 - 2.576X 1.42 , 57.55+ 2.576 X1.42)

(53.8920 , 61.2079)

<u><em>Conclusion</em></u>:-

<em>99% of confidence intervals for mean is determined by</em>

<em>(53.8920 , 61.2079)</em>

5 0
3 years ago
An architect designs a porch support that forms a 42.58 angle with the roof. What is the measure of the angle’s complement? What
antoniya [11.8K]

Measure of the angle’s complement is 47.42 degree and measure of the angle’s supplement is 137.42 degree

<em><u>Solution:</u></em>

Given that architect designs a porch support that forms a 42.58 angle with the roof.

To find: measure of the angle’s complement and measure of its supplement

<em><u>Finding measure of the angle’s complement:</u></em>

Two angles are Complementary when they add up to 90 degrees

To determine the complement, subtract the given angle from 90

measure of the angle’s complement = 90 - 42.58 = 47.42

<em><u>Finding measure of the angle’s supplement:</u></em>

Two angles are supplementary when they add up to 180 degrees

To determine the supplement, subtract the given angle from 180

measure of the angle’s supplement = 180 - 42.58 = 137.42

3 0
3 years ago
Someone please help
kkurt [141]
First, make y negative

y=-x-1

From there, you would go down 1 and right 1

3 points you could choose are (0,-1), (-2,1), and (-3,2)
7 0
3 years ago
walters sink can hold 12 gallons of water . if it is 85% full, how many gallons of water are in the sink?
madreJ [45]

100 , this answer needs no ecplaining , your welcome

4 0
3 years ago
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What number are listed in the stem and leaf plot above
Paul [167]
The numbers listed are:

3, 3 ,3 ,7 ,8 ,8 ,11 ,11 ,13 ,14 ,15 ,17, 18, 19, 21, 23, 23 ,25,27, 28, and 29.
3 0
3 years ago
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