Recall the double angle identity for cosine:
It follows that
Since 0° < 22° < 90°, we know that sin(22°) must be positive, so csc(22°) is also positive. Let x = 22°; then the closest answer would be C,
but the problem is that none of these claims are true; cot(32°) ≠ 4/3, cos(44°) ≠ 5/13, and csc(22°) ≠ √13/2...
Answer:
4xy
Step-by-step explanation:
We need to subtract 2xy from 6xy, So that is,
=> 6xy - 2xy
=> 4xy
Y would equal 12 if x were to equal 4. You can think of it as a proportion.
Answer:
2.5 × 10^-5
<em>please correct me if im wrong</em><em>.</em>
In this case, since one equation is in the form of x=, substitution would be best for this problem. Simply plug in 4y + 8 in place of x in the second equation, solve for y, then plug that value into the first equation to find x.
