The answer is A)1/2[sin(4x)+sin(2x)]
Absolute value means the total distance from zero. So you get rid of any negative signs and then look at which number has the lowest value (which is the smallest number without any negative signs).
108 sodas, you subtract the 30 from the 138 and thus 108.
To determine what the circumference is simply take the value of the diameter and multiply it to the value of Pi or 3.141....
C = Pi • d
C = (3.14)(10 cm)
C = 31.41 cm or 31.4 cm, rounded to the nearest tenth.
