Marco is helping his dad plant 600 new trees in the woods behind their house. They plant 10% on Monday and 20% on Tuesday. Marco says that must mean they planted 30 trees so far. Do you agree with Marco's statement? Why or why not?

No because they planted 180 trees

Step-by-step explanation:

add 20% + 10% to get 30%

30% of 600 is 180

I Disagree

Step-by-step explanation:

to find the answer I did 20 divided by 100 and got 0.2 the multiplied 0.2 times 600 and the answer was 120 and that alone can tell you they planted way more 30 trees. Let me know if I'm wrong

let's call the solutions x₁ = (5 - 2√7)/3 and x₂ = (5 + 2√7)/3

then the equation is (x-x₁)(x-x₂) = 0

if you fill that in you get a lot of numbers which you can recognize as ax²+bx+c=0.

step-by-step explanation:

you can see that a=1 (there is just an x²)

b = (-5 -2√7 + 2√7 - 5)/3 = -10/3

c = -2√7)/3 ) * (-5+2√7)/3) = -1/3

so your answer is 3x^2 – 10x – 1 = 0

answer is 1

step-by-step explanation: