Answer: C
Step-by-step explanation:
If you were to add a rational number
and a irrational number the number would become a rational number.
The formula is given as
, multiplying out the bracket gives
, rearranging to make
the subject
Hence, the correct answer is option d
To find the mean (average), u add up all ur numbers, then divide by how many numbers there are.
mean = (5 + 12 + 1 + 5 + 7) / 5 = 30/5 = 6
To find the mode (and there does not have to be one)...u find the number that is used the most. That number would be 5...because it is used twice, whereas, the other numbers are just used once.
Answer:
If you are doing x - 8 = 3, then x = 11
Step-by-step explanation:
Remember PEMDAS and whatever you do to one side of the equation, you have to do to the other side.
x - 8 = 3
First, add 8 to the -8 to cancel it out and isolate the variable. Since you are adding 8 to the left side of the equation, you have to add 8 to the right side as well
x - 8 + 8 = 3 + 8
Simplify.
x = 11
You can check your answer by substituting the variable.
11 - 8 = 3
This equation is true. Therefore x = 11.
Or are you referring to this?
I don’t think I know this question sorry