You can determine if a number is rational if it can be represented as a terminating or repeated decimal, but if it can not, then the number is irrational.
Sorry im not 100% sure but i do think it is right.
Answer:
<h2>120 Pennies</h2>
Step-by-step explanation:
First, we need to find 80% of 400
400 x 0.8 = 320
Now 50% of 400 is 200
320 - 200 = 120
Cary donated:
<h2>120 Pennies</h2><h2>I'm always happy to help :)</h2>
10 classrooms
With 2 left over.
It's a simple question, make sure that you know that the key is 32/3, and because it's not fully divisible use the whole number (10)
Answer:
2x^4-11x^3+68x-80
2x^4-4x^3-7x^3+14x^2-14x^2+28x+40x-80
2x^3(x-2)-7x^2(x-2)-14x(x-2)+40(x-2)
(x-2)(2x^3-7x^2-14x+40)
(x-2)(2x^3-4x^2-3x^2+6x-20x+40)
(x-2)(2x^2(x-2)-3x(x-2)-20(x-2))
(x-2)(x-2)(2x^3-3x-20)
(x-2)(x-2)(2x^2+5x-8x-20)
(x-2)(x-2)(x(2x+5)-4(2x+5))
(x-2)(x-2)(2x+5)(x-4)
(x-2)^2(2x+5)(x-4)
