9514 1404 393
Answer:
(a) x² +2/3x -1/9 = 0
(b) 9x² +6x -1 = 0
Step-by-step explanation:
The product of quadratic factors can be expanded to give ...
(x -p)(x -q) = x² -(p+q)x +pq
Then the coefficients of x² +bx +c = 0 will be ...
b = -((-1-√2)/3 +(-1+√2)/3)) = 2/3
c = ((-1-√2)/3)·((-1+√2)/3) = (-1/3)² -(√2/3)²) = 1/9 -2/9 = -1/9
a) The quadratic with leading coefficient 1 is ...
x² +2/3x -1/9 = 0
__
b) Multiplying that by 9 gives ...
9x² +6x -1 = 0
<h3>hello!</h3>
Let the number be x.
subtract 4:-
x-4 (4 less)
this expression equals 9:-
x-4=9 (Option C)
<h3>note:-</h3>
Hope everything is clear; if you need any explanation/clarification, kindly let me know, and I will comment and/or edit my answer :)
Given:
There are 4 quarts in a gallon.
She wants to convert 6 quarts to a gallon.
To find:
Whether she should multiply 6 by 4 or divide 6 by 4 to find her answer.
Solution:
We have,
Here, 6 quarts is equal to 
gallon. It means we need to multiply 6 by 4 in to find the answer.
Answer:
60
Step-by-step explanation:
10 x 6 is what?
Took the test :p
