Answer:
Option B.
Step-by-step explanation:
If a quadratic equation is defined as
.... (1)
then the quadratic formula is
The given equation is
It can rewritten as
.... (2)
On comparing (1) and (2) we get
Using quadratic formula we get
Therefore, the correct option is B.
The area of rectangle with length l and width w is
If the length of rectangle is expressed as 
and the width of rectangle is expressed as 
, then the area of rectangle is
Answer:
well, we only no that
2l + 2w is 80
(lengths and widths on all 4 sides
and that w * l is A
so the function should be w times what's left for l, but also expressed by something with w
2l + 2w = 80 | -2w
2l = 80 -2w | devide by 2
l = 80 - w
now we can substitute l in
A = w * l
so that we only need w's
A(w) = w * (80-w)
for any w it will give us the area, makes only sense for 0<w<80
Answer:
y>5/6
Step-by-step explanation:
5y+3>-7y+13
5y+7y>13-3
12y/12>10/12
y>5/6
This is an inequality, which shows where the variable y does or does not exist
from this we can say
y: (-infinity,5/6) (5/6, infinity]
or, y does not exist from (-infinity,5/6)
and does exist from (5/6, infinity]
Easy ill tell u and then do a equation first sense it has - it means u have to subtract alright it goes like this. 17,1
9,3
--------
7,8
and this is ur answer as u see in my equation ur welcome only give me brainiest only if im right
