Pls pls pls I need help ⚠️⚠️⚠️ A math class had an average grade of a 65% with a standard deviation of 7.8%. Draw a normal distribution curve with 3 standard deviations on each side. ​

answer: ask

step-by-step explanation:

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

explanation:

previous steps have made pa≅ pb ≅ st ≅ su. setting the compass width to ab allows you to make tu the same length. then δstu ≅ δpab by the sss congruence postulate, and ∠p ≅ ∠s by the reason cpctc.