z equals -1 because 8 time negative one equals negative 8 plus 8 equals 0
Answer:
Explanation:
Identity: sec2θ=1+tan2θ
sec2(π2−x)−1=1+tan2(π2−x)−1
=tan2(π2−x)
Identity: tan(π2−θ)=cotθ
=cot2x
100%-20%=80%
25×80%=20. As a result, Kyle pays $20 for the shirt. Hope it help!
40 over 100 and 55 over n cross multiply 55 x 100 and divide by 40.which gives you 137.5
