Please ask me questions when you're confused about something... :)
Answer:
17.6
Step-by-step explanation:
17.6 ÷ 22= 0.8 (80%)
Per meter? Well, if just including, ONLY, the measurement of JUST the meters itself, then..
6x2=12, and 12x21=252.
It cost a total of $252.
(Not sure about my answer, sorry if it ends up wrong :( )
Answer:
Step-by-step explanation:
The following formula tells us that a quadratic equation can be solved:
which gives us the real and distinct roots
We have been given an equation:
Here, on comparing it with general quadractic equation which is:
Here, a=4,b=6 and c=2
On substituting the values in the formula to find D
Now, to find x:
we have a formula:
On substituting the values we get:
On simplification:
Please find illustration attached
Answer and explanation:
I have illustrated the bisection of the lines using a diagram so it's easier to solve length of AB
Comparing line DE and CB, we know that DE is half of line DC and DC is half of CB, because CB= AC
Therefore DE is a quarter of line CB because length of DE × 4 will be equal to CB
To find length of AB, we go from known to unknown
We know from what we are given that line AB has a midpoint C, CB in line AB = 3x²+3x
CB=AC because CB is half of line AB
Therefore line AB
=3x²+3x+3x²+3x
= 6x²+6x