Dividing two binomials will not always result in a polynomial. For instance, divide (x+2) over (x+3) and we won't get a polynomial. The result is known to be a rational expression but not a polynomial. So that's why division is not closed for polynomials.
Contrast that with addition, subtraction and multiplication. For any of those operations taking two polynomials and adding them, subtracting them, or multiplying them will lead to another polynomial. That's why these operations are closed for polynomials.
Answer: Choice B
Let x be the total number of students.
The total of red + blue = x/4 + x/8
The remaining will be : x - x/4 -x/8
But we know the green at 3/5 of the remaining, so the green = 3/5(x - x/4 -x/8)
We also know that 3/5(x - x/4 -x/8) = 15
Solve this equation: and you will find x = 40 (number of students)
Answer:
2y=10-5
2y=5
y=5/2
y=2.5
Step-by-step explanation:
you first collect the like terms then you do 5/2 which gives you Y=2.5
Answer:
i dont know but some one will help freeee points
Step-by-step explanation:
As the confidence level decreases, the width of the confidence interval increases.