F(x) = 2x^2 - x
if x=-3
f(-3) = (2*(-3)^2) - (-3)
f(-3) = (2*9) + 3
f(-3) = 18 + 3
f(-3) = 21
Answer:
I'm just going to assume inbetween 4 and 2 is a multiplication symbol. If it isn't, just comment under and I'll tell u the answer.
hope this is right :D
Either the second or third. I think the third since the second can be proven with the given info, and then you just need to know another angle from each triangle is congruent. also, its worth knowing that it is also possible to prove similar triangles with just angle angle, since that would automatically make the last angles equal.
Poke holes in some vegetables and put it on a string
