180
Because 120 divided by 2 is 60.
And 120 + 60 is 180
Answer:
Step-by-step explanation:
2^9
2^-2 * 2^11
(2*2*2*2*2)*(2*2*2*2)
Answer:
Her first error was adding the wrong number to both sides. Instead of 4², it should be 2²
Step-by-step explanation:
When completing the square, the number that needs to be added to both sides is (b/2)²
In this problem, b is 4. So, Carly should have added 2² to both sides, but she added 4² instead.
So, her first error was adding 4² to both sides instead of 2²
The set X = { x , {x} } would, I think, fit the Bill
So its 2 elements
