Answer:
27
Step-by-step explanation:
180-(90+33)=57
90-57=33
180-(120+33)=27
? = 27
Keep in mind that all angles in a triangle equal 180
Add up all the known angles in triangle 1
90 + 33 = 123
and subtract it by 180 to find the third angle
180 - 123 = 57
then subtract 57 by 90 to find the other side of 90 degree angle the to triangles share
90 - 57 = 33
next add the angle we just found by 120
120 + 33 = 153
finally subtract 180 by 153
180 - 153 = 27
40
(252-12)/6=40
See below.
(4x^2-3x^3)+(2x^2+4x^3)
6x^2-x^3
(-8x^2-2x+7)+(x^2-3x+2)
-7x^2-5x+9
-hope it helps
