X > 90 idk if thats what u mean or not
30 % of students because add 9% to 61% thats how i got it i think is wrong dont know
The contribution of overhead as percentage of sales will be found as follows:
Overheads=134000+13550+27800=$175350
Sales=$191000
thus the percentage of overheads will be:
overheads/sales
=175350/191000
=0.91806
=91.806%
If the roots are 1 and 3, the factors of this quadratic are (x-1) and (x-3).
The polynomial is x^2 - 4x + 3.
If you were supposed to write a polynomial based upon all four given roots, then:
Looks as tho' you have four distinct roots. The 4th order polynomial with these roots is f(x) = (x-1)(x-3)(x-7)(x-2). Multiply this out, combine like terms and then arrange the terms in descending order by powers of x.
John is correct. The substitution property is being used. The x is being substituted for the value 9 (aka x is replaced with 9). Keep in mind that x is simply a placeholder for a number, in this case 9.
Think of "substitution" as in a sports game where one player replaces another. Or you can think of a substitute teacher where someone else temporarily replaces your teacher for the day. Those are two ways to help remember the term.
The distributive property is not being used here since it is a*(b+c) = a*b+a*c. For example, 2*(3+5) = 2*3+2*5
