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3 years ago

Find the slope of -2y-10+2x=0

Mathematics

2 answers:

olya-2409 [2.1K]3 years ago

8 0

Solve for y -2y=-2x+10.
Y=1x-5.
Using y=mx+b we see that the slope is 1.

Anna [14]3 years ago

4 0

The answer to -2y-10+2x=0 is 1

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Answer:

Mean = 1.57

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Step-by-step explanation:

To calculate the mean and the variance of the number of successful surgeries (X), we first have to enumerate the possible outcomes:

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3) Right knee unsuccessful and left knee successful (X=1).

$P(e_3)=0.90*(1-0.67)=0.9*0.33=0.297$

4) Both surgeries are unsuccessful (X=0).

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Then, the mean can be calculated as the expected value:

$M=\sum p_iX_i=0.603*2+0.067*1+0.297*1+0.033*0\\\\M=1.206+0.067+0.297+0\\\\M=1.57$

The variance can be calculated as:

$V=\sum p_i(X_i-\bar{X})^2\\\\V=0.603(2-1.57)^2+(0.067+0.297)*(1-1.57)^2+0.033*(0-1.57)^2\\\\V=0.603*0.1849+0.364*0.3249+0.033*2.4649\\\\V=0.1115+0.1183+0.0813\\\\V=0.3111$

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4 years ago