2^3 is equivalent because if you count the number of twos there are in the parentheses its 3.
Answer:
Step-by-step explanation:
start by squaring both sides:
squaring a square root cancels it out:
solve for x by first adding 8 to both sides:
then divide both sides by 3:
No, 12 rounded to the nearest tenth is 12.0
True, because the chord connect 2 points of the circumference, but radius connect the center and a point on the circumference.