Answer: y = -10/7 + 8x/7 x = 5/4 + 7y/8
Step-by-step explanation: Move all terms that don't contain y to the right side and solve. Move all terms that don't contain x to the right side and solve.
Given: Right angles are 90 degrees.
if-then: If it is a right angle, then it's 90 degrees.
Converse: If the angle is 90 degrees, then it's a right angle.
Inverse: If it is not a right angle, then it's not 90 degrees.
Contrapositive: If the angle isn't 90 degrees, then it's not a right angle.
Bi-conditional: It is a right angle if and only if it's 90 degrees.
Answer:
[A] use the complementary relationship between sine and cosine to rewrite sin(x + y) as cos(pi/2-(x+y)). apply the cosine sum identity. then simplify using sin(–y) = –sin(y) and cos(–y) = cos(y).
Step-by-step explanation:
i got it right
screw that other person l0l
note that sin(-x)=-sin(x) and cos(-x)=cos(x)
so sin(-y)=-sin(y) and cos(-y)=cos(y)
or something like that idfk
