Answer:
70 and 14
Step-by-step explanation:
You divide 84 into 6 parts, so you get 70 and each part is 14, 14x5=70 then if you add 14 its 84.
We use quadratic formula for that one
remember that √-1=i
so
for
ax^2+bx+c=0

so
given
5x^2-6x+2=0
a=5
b=-6
c=2




20/7 as a mixed number is 2 6/7
9/4 as a mixed number is 2 1/4
22/5 as a mixed number is 4 2/5
4/3 as a mixed number is 1 1/3
Sin(a+b)=sin(a)cos(b)+cos(a)sin(b).
Let a=42 and b=17 so sin(42+17)=sin59.