Select the correct answer. To solve this system of equations using substitution, what could be substituted in place of yin the first equation?
4x = 5 - 2y
y-2x = 7
OA. 7 - 21
ОВ.
42 - 5
5 - 4
OD. 21 + 7
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answer: i guess 105 degrees?

step-by-step explanation:

answer

false

explanation

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no he doesnt because "-16' is negatiive

step-by-step explanation:

place r′ so that qr′ is parallel to the tangent.

now we get that ∠r′py=∠pr′q, where y is on the tangent, on the opposite side of p from x.

also, because of the symmetry, ∠r′py=∠qpx.

finally, note that no matter where we place r, as long as it's on the correct arc, we have ∠prq=∠pr′q.

stringing all these equalities together, we end up with ∠prq=∠qpx.

this picture will show how its going to look like.

hope this by jack monhen