Recall that for all t,
cos²(t) + sin²(t) = 1
Now,
x = 5 cos(t) - 7 ⇒ (x + 7)/5 = cos(t)
y = 5 sin(t) + 9 ⇒ (y - 9)/5 = sin(t)
so that substituting into the identity above, we get
((x + 7)/5)² + ((y - 9)/5)² = 1
which we can rewrite as
(x + 7)²/25 + (y - 9)²/25 = 1
(x + 7)² + (y - 9)² = 25
and this is the equation of a circle centered at (-7, 9) with radius 5.
Answer: 50%
Step-by-step explanation: 50%
Sorry this is quite hard but will you answer any question from me and here is the answer 9x feet
<span><span>Possessiv emine, yours, his, hers, ours, theirs</span><span>Reflexive myself, yourself, himself, herself, itself, oneself, ourselves, yourselves, themselves </span><span>Reciprocal each other, one another</span><span>Relative <span>that, which, who, whose, whom, where, when</span></span></span>
