$1,380 if they sold 20 pairs of shoes marked up by 15% each, which would be $69 per shoe ( please give me a thanks )
Answer:
B
Step-by-step explanation:
<span>Tan(2x) ‒ 1/Tan(2x) = 0 \\ clear the denominators by multiplying both sides by Tan(2x) </span>
<span>Tan²(2x) ‒ 1 = 0 as long as Tan(2x) exists and ≠ 0 </span>
<span>Tan²(2x) = 1 so Tan(2x) = -1 or Tan(2x) = 1 </span>
<span>Therefore, 2x = 45° or x = 22.5° or 2x = -45° or x = -22.5° </span>
<span>There are many other values of x that work but not between -180° and 180°. </span>
Answer:
(6x)*(4x^7) = (6*4)*(x*x^7) = 24*x^8
(6x)*(4x^7) = 24*x^7 is wrong in calculation of x
Hope this helps!
:)