For dividing fractions you should always use the KCF method: Keep Change Flip
6/10 divided by 12/7
Kcf method:
6/10*7/12= 42/120
42/120 in simplest form will be 7/20
So the answer is A
X = [-(-8) +/- sqrt((-8)^2 -4*41)] / 2
x = ( 8 + sqrt (-100) / 2 and (8 - sqrt(-100) / 2
4 +or- 5i

is the only acute angle whose sin = 1/2. Therefore, cos (

) =
I'm going to put it into decimals because it is easier.
3.5*1.5=5.25 or

Hope that helps