Isurveyed 40 people from a poor area of town and 60 people from an affluent area of town about their feelings towards minorities. i counted the number of negative comments made. i was interested in comparing their attitudes. the average number of negative comments in the poor area was 16 and in the affluent area was11. the standard deviations were 6 and 3 respectively. let's determine a 95% confidence interval for the difference in mean negative comments. (in 2 decimal) a) 3.23paμμ< −< 7.69 b) 1.56paμμ< −< 8.11 c) 2.63paμμ< −< 7.36 d) 2.99paμμ< −< 7.01

slope is 35 and 20 miles is the y-intercept.

step-by-step explanation:

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step-by-step explanation:

< xcy ≅ < xby

step-by-step explanation:

in δcax and δbax,

so, δcax ≅ δbax (side-angle-side or sas)

since δcax ≅ δbax, we can conclude < acx ≅ < abx

in δacy and δaby,

so, δacy ≅ δaby (side-angle-side or sas)

since δacy ≅ δaby, we can conclude < acy ≅ < aby

now,

< acy ≅ < aby

=> < acx + < xcy ≅ < abx + < xby

=> < acx + < xcy ≅ < acx + < xby   (since < acx ≅ < abx already proved above)

subtracting < acx from both sides, we get

< acx + < xcy -< acx ≅ < acx + < xby -< acx

cancelling out < acx and -< acx from both sides, we get

< xcy ≅ < xby (proved)