Answer:
B
Step-by-step explanation:
x-5+3x-5+90=180 you set it up this way because you need to find what x is equal to and by adding those two equations plus 90 then setting the against 180 you can find x because all three angles in a triagnle add up to 180.
x-5+3x-5+90=180
4x-10+90=180 you combined like numbers
4x+80=180 combined like numbers
-80 -80 subtract 80 from both sides because you are trying to--- get x alone
4x=100 now to get x alone you have to divide 4 from both ---- sides
/4 /4
x=25 answer
i get 11/2 is this wright answer??
When the expression has only one KIND of a variable, and also only one kind of a lonely number.
A lonely number is a number that has no variable next to it. Their need to be one kind of it.
Example of a simple expression:-
16c + 3
Answer: x - x1/ x2- x1 = y -y1 / y2-y1
x - 6/ -6-6= y - 1/ -1 -1
x -6/-12 = y -1 /-2
-2(x-6) = -12 (y-1)
-2x +12 = -12y +12
12y = 2x +12-12
y= 2x/12
y= x/6
Step-by-step explanation:
Answer:
n/(n+1) . . . . n ≠ 1
Step-by-step explanation:
As written, there is no product. There is ony the sum ...
With appropriate parentheses, this becomes the product of rational functions ...
... (4n)/(4n-4)·(n-1)/(n+1)
_____
At n=1, the product has a "hole" where the denominator of the original expression is zero, so the expression is undefined. Hence the domain of the product must be restricted to n≠1 (as well as n≠-1).
