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Firlakuza [10]
3 years ago
13

Find the mean of the data set 9,4,7,3,10,9

Mathematics
1 answer:
RideAnS [48]3 years ago
5 0

9+4+7+3+10+9=42 42÷6= 34.5.       I believe "mean" is the same as avgerage.

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How many $10 bills are the same as ten $ 1 bill?
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Im.not sure but i tjink its 10
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If the ratio of men to women is 3:2 and there are 120 men, how many women would there be?
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There would be 80 women.
Here's the work:
120 divided by 3 = 40 
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A jar contains 8 4/9 pounds of jam. If Sam eats 3 2/5 pounds of the jam, how many pounds of jam remains in the jar?
zepelin [54]
\bf 8\frac{4}{9}\implies \cfrac{8\cdot 9+4}{9}\implies \cfrac{76}{9}
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3\frac{2}{5}\implies \cfrac{3\cdot 5+2}{5}\implies \cfrac{17}{5}\\\\
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\cfrac{76}{9}-\cfrac{17}{5}\impliedby \textit{let's use an LCD of 45}\implies \cfrac{5\cdot 76-9\cdot 17}{45}
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\cfrac{380-153}{45}\implies \cfrac{227}{45}\implies \boxed{5\frac{2}{45}}
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5\frac{2}{45}\implies \cfrac{5\cdot 45+2}{45}\implies \cfrac{227}{45}
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3 years ago
A teacher gives a 20 point quiz 210 students the scores are listed below what percentile corresponds to the score of 45
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2 years ago
Complete the square to put () in vertex form. () = 3<br> 2 + 30 − 12. What is the vertex?
gulaghasi [49]

Answer:

A and A

the equation of a parabola in vertex form is

y = a(x - h)² + k

where ( h, k ) are the coordinates of the vertex and a is a multiplier

y = - 2(x + 3)² + 2  is in this form

with vertex = ( - 3, 2)

To find the y-intercept let x = 0

y = - 2(3)² + 2 = - 18 + 2 = - 16

Similarly

y = - 2(x + 2)² + 2 is in vertex form

vertex = ( - 2 , 2)

x = 0 : y = - 2(2)² + 2 = - 8 + 2 = - 6 ← y- intercept

hope this helped

8 0
2 years ago
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