Answer:
when a>0 then you will have a cup so up
when a<0 then you will have a cap so down
The butterfly method. Multiply then divide
Pi was discovered way back already the way to Babylonians and Egyptians 216 BC but none were all the way accurate they were close
Answer:
<h3> sum of the roots:
</h3><h3> product of the roots:
</h3><h3>
Step-by-step explanation:</h3>
From Vieta's formulas applied to quadratic polynomial we have:
if 
then
sum of roots: 
product of the roots: 
First triangle=bxh/2
=3x4/2
=6in squared
rectangle=l x w
=3 x 10
=30in squared
trapezoid=3+5x2/2
=8in squared
6 + 30 + 8
=44 in squared
