Find −9/14 + 2/7. write your answer as a fraction in simplest form.

Step-by-step explanation:

When you add fractions, sometimes you have to raise a number to make it more easier for you.

As in this case, we have two fractions in which seem to not be the same, but note this.

7 is multiple of 14, meaning to make our life easier, we can do this method:

Whoa! Now we have the same denominator for both fractions, now we made this problem way more easier than it was before.

Do the math:

==>

113.1

step-by-step explanation:

v=4

3πr3=4

3·π·33≈113.09734

answer would be 8.64 or s = 11π/4 inches

step-by-step explanation:

s = r θ  

where s = arc length  

r = radius = 3 inches  

θ = central angle in radians = ( π /180)*165  

s = 3(π/180)*165  

= 8.64 inches