I believe the answer is-
a) 80
b) 130
c) 250
Let the width of the rectangle be x
Then length =x-4
Area=x(x-4)=140
x²-4x=140
x²-4x-140=0
x²-14x+10x-140=0
x(x-14)+10(x-14)=0
(x-14)(x+10)=0
Therefore,length=14 cm and width=10 cm
Answer: its 1/9
All you do is divide them by 4
4 divided by 4=1
36 divided by 4=9
Also can I get brainly thing?
Answer:
Find like terms:
5x and 2x are like terms,
as well as:
42 and 1
do the math per usual but with the like terms:
5x - 2x = 3x
42 -1 = 41
Therefore your answer is:
(3x - 41)
(hope this helps)
The quadratic formula is expressed as:
x = (-b +/- √(b^2 - 4ac) ) / 2a
where a, b and c are the coefficients of the quadratic equation with the form ax^2 + bx + c=0
Therefore, the quadratic equation would be:
a = 3
b = -6
c = 8
x = (-(-6) +/- √((-6)^2 - 4(3)(8) ) / 2(3)
Hope this helps.
