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Assoli18 [71]
3 years ago
12

suppose 200 students take an exam, graded on a scale of 0-100%. The median exam grade was 78%, the mean exam grade was 68%, and

the range of scores was 40%. would you expect this distribution to be symmetric or skewed? Does the distribution have a high or low variation?
Mathematics
1 answer:
romanna [79]3 years ago
4 0
Because the median of the distribution is greater than the mean of the distribution.
Therefore, the distribution is skewed to the left.

Because the range is row (40%), the distribution has a low variation.
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Solve the following equation for x: 6(4x+5)= 3(x+8)+3. Round to the nearest hundredth.
gavmur [86]
6(4x + 5) = 3(x + 8) + 3
24x + 30 = 3x + 24 + 3
24x + 30 = 3x + 27
24x - 3x = 27 - 30
21x = - 3
x = -3/21
x = - 0.143 <==
8 0
3 years ago
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In inches, Micah is 5 inches shorter than twice the height of Jasmine, who is 32 inches tall. How tall is Micah in inches?
Monica [59]
Micah is 5 inches shorter than twice the height of Jasmine

Micah = 5 inches shorter than 2 x Jasmine

Micah = 2 x Jasmine - 5    <em>(jasmine is 32 inches tall. Replace jasmine with 32)
</em>
Micah = 2 x 32 - 5

Micah = 64 - 5

Micah = 59

Micah is 59 inches tall
5 0
3 years ago
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Which equation matches the graph?
zaharov [31]

Answer:

a

Step-by-step explanation:

y=4x+6 is the equation simplified and that is what the graph is showing.

4 0
3 years ago
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If f(x) = 8 – 10x and g(x) = 5x + 4, what is the value of (fg)(–2)?
Vedmedyk [2.9K]
F(x) = 8 - 10x

g(x) = 5x + 4

Finding (fg)(-2).

First let us find fg(x),  this is the same as f(g(x))

f(g(x))

f(5x + 4)

Recall, f(x) = 8 - 10x, therefore f(5x + 4) would be such that anywhere we see x in the f(x), we replace it with 5x + 4

f(x) = 8 - 10x

f(5x +4) =  8 - 10(5x + 4)

             =  8 - 50x - 40

             = -50x + 8 - 40

             =  -50x - 32

f(g(x)) = fg(x) = -50x - 32

fg(-2) = -50*(-2) - 32 = 100 - 32 = 68

Therefore fg(-2) = 68

I hope this helped.
5 0
3 years ago
A coordinate plane with a line passing through (0, negative 4) and (2, 0). What is the equation of the graphed line written in s
Hoochie [10]

Answer:

<em>d) The equation of the line passing through the points </em>

y = \frac{-x}{2} - 4

Step-by-step explanation:

<u><em>Step(i):</em></u>-

Given points are ( 0, -4) and (2 ,0)

slope of the line

               m = \frac{y_{2}- y_{1}  }{x_{2}- x_{1}  } = \frac{2-0}{0-4} = \frac{-2}{4}= \frac{-1}{2}

<u><em>Step(ii):</em></u>-

The equation of the line passing through the point ( 0,-4) and having slope

m = \frac{-1}{2}

y - y_{1} = m ( x - x_{1} )

y - (-4) = \frac{-1}{2}  ( x - 0 )

2 ( y +4) = -x

2 y + 8 = -x

2 y = - x - 8

 y = \frac{-x}{2} - \frac{8}{2}

 y = \frac{-x}{2} - 4

<u><em>Final answer:-</em></u>

<em>The equation of the line passing through the points </em>

y = \frac{-x}{2} - 4

<em></em>

<em></em>

5 0
3 years ago
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