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andreev551 [17]
3 years ago
5

Last week, Gina's art teacher mixed 9 pints of red paint with 6 pints of white

Mathematics
1 answer:
kherson [118]3 years ago
4 0

Answer:

Step-by-step explanation:

First mix: 4 pints red and 3 pints white = 7 pints in 4:3 ratio.

Second mix: 5 pints red and 2 pints white = 7 pints in 5:2 ratio

Second music is redder than first mix.

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Complete the chart to find the mean, variance, and standard deviation. Remember to use commas and round numbers to the nearest t
vitfil [10]

Answer: The mean of the data is 433.75, variance of the data is 99667.19 and the standard deviation of the data is 315.7011.

Explanation:

The given data is 900, 35, 500 and 300.

The number of observation is 4.

Formula of mean is,

\text{Mean}=\frac{\text{Sum of observations}}{\text{Number of observations}}

\bar{X}=\frac{900+35+50+300}{4} =433.75

The formula of variance is given below,

\sigma^2=\frac{1}{n}\sum{(X-\bar{X})^2}

\sigma^2=\frac{398668.75}{4}

\sigma^2=99667.19

The variance of the data is 99667.19

\sigma=\sqrt{99667.19}

\sigma=315.7011

The standard deviation of the data is 315.7011.

The other information or values of given chart is shown in the attached table.

8 0
3 years ago
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Some carpet cleaning costs are 1 room for $125, 2 rooms for $175, 3 rooms for $225. and 4 rooms for $275.00.Find and interpret t
Free_Kalibri [48]
First calculate the hourly rate, which is the difference of cleaning 2 and 1 rooms:
175-125=50

then calculate the initial value by subtracting the hourly rate from the "1 room" cost:
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The initial cost might be something like driving to the place (which is only necessary once), while the rate covers work time or cleaning utensils used.
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AB and CD are two chords in a circle intersected in H and Ah=x And HB=8 and CH=4 and HD=7 then x=?
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Graph this line using the slope and y-intercept: y=5x+2
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Answer:

You can use Desmos, or any online graph-er to graph the line.

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Answer:

Step-by-step explanation:

f(x)=x+1

then,

   f(-5)=(-5)+1

         =-4

8 0
2 years ago
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