Answer:
see picture with work shown
Answer:
97
Step-by-step explanation:
5 * 85 - 4* 82 = 97
A^2 - b^2 = (a - b)( a +b);
<span>cos^4x-sin^4x =( cos^2x + sin^2x )( cos^2x - sin^2x) = 1* cos2x = co2x.</span>
You find the circumference of a full circle so 2πr =43.98
then divide by 4=10.995
so the answer is 10.995cm
Answer: A.
They did not distribute the 3 to the 4 and -5a correctly.
