Hello from MrBillDoesMath!
Answer:
12/5
Discussion:
Note that 10 is a common denominator of both denominators:
9/5 = (9*2)/(5*2) = 18/10
- ( -6/10) = + (6/10)
So the original problem is equivalent to
18/10 + 6/10 =
(18 +6)/10 =
24/10 =
(2*12)/ (2*5) => cancelling the common factor "2"
12/5 =
2 and 2 fifths =
22/5 (though this looks like (22)/5!)
Thank you,
MrB
Sqrt(9)÷25= 0.12 I hope this helps!
Answer:
a
Step-by-step explanation:
y=6x²+12x+2
y=4x²+16x+16
6x²+12x+2=4x²+16x+16
6x²-4x²+12x-16x+2-16=0
2x²-4x-14=0
x²-2x-7=0
x²-2x+1-1-7=0
(x-1)²=8
x-1=±√8=±2√2
x=1±2√2
x≈1±2.83
x≈3.83,-1.83
x=2√2 -1≈1.828≈1.83
