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bonufazy [111]
3 years ago
10

You enter a game saloon. There are 44 gamer playing game. 13 gamer killed. How many people are in the game saloon?

Mathematics
1 answer:
notsponge [240]3 years ago
8 0

Answer:

45? If you count yourself

Step-by-step explanation:

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Write the equation of a line that<br> goes through the point (-2, 3)<br> with a slope of 2.
bezimeni [28]

Answer:

y = 2x + 7

Step-by-step explanation:

y = mx + b  The point (-2,3) gives us an x value and a y value that we can use.  We are also give the slope (m).  All we need to do is figure out the b (y-intercept) value.

y = mx + b

3 = 2(-2) + b

3 = -4 + b  Add for to both sides

7 = b  We know have every thing that we need to write the equation.  We have the slope (m) which is 2 and the b (y-intercept) that we just figured out is 7

y = 2x + 7

4 0
10 months ago
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Which pair of number has the same greatest common factor as 48 and 78
Leno4ka [110]

Answer:

48

Step-by-step explanation:

48=2×2×2×2×3

78=13×2×3

48 has 5 factors.

7 0
3 years ago
Calculate the sample mean and sample variance for the following frequency distribution of heart rates for a sample of American a
spin [16.1K]

Answer:

Mean = 68.9

s^2 =18.1 --- Variance

Step-by-step explanation:

Given

\begin{array}{cccccc}{Class} & {51-58} & {59-66} & {67-74} & {75-82} & {83-90} \ \\ {Frequency} & {6} & {3} & {11} & {13} & {4} \ \end{array}

Solving (a): Calculate the mean.

The given data is a grouped data. So, first we calculate the class midpoint (x)

For 51 - 58.

x = \frac{1}{2}(51+58) = \frac{1}{2}(109) = 54.5

For 59 - 66

x = \frac{1}{2}(59+66) = \frac{1}{2}(125) = 62.5

For 67 - 74

x = \frac{1}{2}(67+74) = \frac{1}{2}(141) = 70.5

For 75 - 82

x = \frac{1}{2}(75+82) = \frac{1}{2}(157) = 78.5

For 83 - 90

x = \frac{1}{2}(83+90) = \frac{1}{2}(173) = 86.5

So, the table becomes:

\begin{array}{cccccc}{x} & {54.5} & {62.5} & {70.5} & {78.5} & {86.5} \ \\ {Frequency} & {6} & {3} & {11} & {13} & {4} \ \end{array}

The mean is then calculated as:

Mean = \frac{\sum fx}{\sum f}

Mean = \frac{54.5*4+62.5*3+70.5*11+78.5*13+86.5*4}{6+3+11+13+4}

Mean = \frac{2547.5}{37}

Mean = 68.9 -- approximated

Solving (b): The sample variance:

This is calculated as:

s^2 =\frac{\sum (x - \overline x)^2}{\sum f - 1}

So, we have:

s^2 =\frac{(54.5-68.9)^2+(62.5-68.9)^2+(70.5-68.9)^2+(78.5-68.9)^2+(86.5-68.9)^2}{37 - 1}

s^2 =\frac{652.8}{36}

s^2 =18.1 -- approximated

5 0
2 years ago
Select the graph that represents the inequality <br><br> 2x + 3y &lt;= 6
Tanzania [10]
I think the answer is B, the one with a complete line and shaded to the bottom
8 0
3 years ago
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Find the equation of the line through the points (-2,5) and (3,-10). Give your answer in slope-intercept form.
Brilliant_brown [7]
m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}} = \frac{-10 - 5}{3 - (-2)} = \frac{-15}{3 + 2} = \frac{-15}{5} = -3

y - y₁ = m(x - x₁)
 y - 5 = -3(x - (-2))
 y - 5 = -3(x + 2)
 y - 5 = -3(x) - 3(2)
 y - 5 = -3x - 6
   + 5         + 5
      y = -3x - 1
6 0
3 years ago
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