Answer:
Step-by-step explanation:
a) The domain is R- all real numbers.
b) The domain is R- all real numbers.
c) we need
So the domain is R\{-2, 2}
d)
we need
So the domain is R\{-2, 1}
e)
we need: x-1>0 or x> 1
So the domain is (1,+∞)
Answer:
x = 32
Step-by-step explanation:
x/4 +2 = 10
Subtract 2 from each side
x/4 +2-2 = 10-2
x/4 =8
Multiply each side by 4
x/4 *4 = 8*4
x = 32
Step-by-step explanation:
The equation for this line
y = 4x+ 1
9514 1404 393
Answer:
- inverse operation are used
- the variable needs to be isolated
Step-by-step explanation:
A solution is always of the form ...
variable = something
In order to get this form, the variable needs to be isolated (put by itself on one side of the equal sign).
In general, isolating the variable involves using inverse operations to "undo" whatever is done to the variable. These are generally applied in the reverse order of the operations that are done to the variable. The list of operations done and their order can be identified using the Order of Operations to consider how an equation would be evaluated for some value of the variable.
Answer:
13.1
+13
---------
26.1
---------- or 261/10 or 26 1/10
Step-by-step explanation:
