Answer:
and 
the mistake was in calculating 
let's solve first.
Step-by-step explanation:
if 
, substitute the 
in the equation
as
solve the equation in parentheses :
multiply 
by 
it will equal to: 
now we want to let all unknown digits alone, so we will take 
to the other side with a different sign it will be as:
now we will solve it:
at this part, the given equation was wrong in the paper.
we don't want the digit to be negative so we will do it like this:
now that we found 
we will substitute it to find 
:
overall the mistake was in calculating instead of putting
he/she put a different sign in front of the digit like :
so when he/she flipped 
it became positive and instead of subtracting he/she added it.
First, multiply both sides by 1000.
1000*c = w*t*c
Since c is on both sides, they cancel each other out
1000 = w*t
Divide both sides by w.
1000/w = t
Answer:
Step-by-step explanation:
The distance between two points 
is given by 
.
Here 
are the vertices of a triangle.
Longest side
Hence this is an acute triangle.
Answer:
3
Step-by-step explanation:
I think its three i dont do alot of this but yea
Answer:
I think it is a 160o Angle
Step-by-step explanation:
