Answer:
Part A)
This quadratic expression can be factored by using the difference of squares pattern.
Part B) (5x+y) and (5x-y)
Step-by-step explanation:
Given:
25x^2-y^2
above polynomial can be factorize by using difference of squares formula
a2-b2=(a+b)(a-b)
25x^2-y^2= (5x-y)(5x+y)
so for part A)
correct option is This quadratic expression can be factored by using the difference of squares pattern.
Part B)
As factored above in part A,
the factors of given polynomial 25x^2-y^2 are (5x+y)(5x-y)
so for part B) correct options are (5x+y) and (5x-y) !
Answer:
x = 11, y=-½
Step-by-step explanation:
Simultaneous equations - subtract the first equation from the second.
x + 4y = 9
-(x - 2y = 12)
6y = -3
y = -½
Substitute y
x + 4(-½) = 9
x + -2 = 9
x = 11
Due to the u-shaped graph suggested by these data points, this would best be matched with a quadratic function.
Answer:
593,500
Step-by-step explanation:
48,000 * 12 = 576000
500000 * 3.5% = 17500
576000 + 17500 = 593500
Answer: 
Step-by-step explanation:
The former cost of the book is 
The new cost of the book is the old cost plus the 
of :
Since:
We have the following:
Then, the new price of the book is:
