Answer:
x=1, 3±√17/4
Step-by-step explanation:
2x^3-5x^2+2x+1 = (x-1)(2x^2-3x-1)
(x-1)(2x^2-3x-1)=0
x-1 =0 → x=1
2x^2-3x-1=0 → x= 3±√17/4
rDistance (D) = Speed (S) * Time (T)
S * T = r*20/60 mins = r / 3
So r/3
Answer:
1/10
Step-by-step explanation:
First, combine 4 - 11/3; the LCD here is 3, so we have 12/3 - 11/3, or 1/3.
Next, combine 4 - 2/3; we end up with 12/3 - 2/3, or 10/3.
Now the numerator 1/3, divided by the denominator 10/3, is 1/10.
X^2 + 13x + 42
What two numbers multiplied equal 42 and if added equal 13?