8(8x)
<em>I hope I helped you with your solution! If I did, please give me Brainliest, and click the "thanks" button! It would truly make my day!</em>
The '68-95-99.7' rule says
-About 68% of values fall within one standard deviation of the mean.
-About 95% of the values fall within two standard deviations from the mean.
-Almost all of the values — about 99.7% — fall within three standard deviations from the mean.
Here ![31.4=29+2*1.2 26.6=29-2*1.2](https://tex.z-dn.net/?f=%2031.4%3D29%2B2%2A1.2%2026.6%3D29-2%2A1.2%20)
Therefore, the probability
![P(26.6](https://tex.z-dn.net/?f=%20P%2826.6%3CL%3C31.4%29%3D0.95%20)
The required probability
![P(L](https://tex.z-dn.net/?f=%20P%28L%3C31.4%29%3D0.95%2B%5Cfrac%7B1-0.95%7D%7B2%7D%20%3D0.975%20)
Answer: finding slope (-4, 1), (1,-2) : m= -3/5
-4d + 2(3+d)= -14
distribute the 2(3+d)
-4d + 6+ 2d= -14
Combine the like terms
-4d + 2d + 6= -14
-2d + 6 = -14
subtract 6 to -14
-2d = -20
divide by -2
d= -20/-2
d= 10
Check your answer
-4(10) + 2(3+ 10) = -14
-40 + 6 + 20
-40 + 26= -14