Answer:
{-12,0}
Step-by-step explanation:
first to solve this can collect like terms and add
X² +12x=0
and solve it by factorization method
X² +12x=0
x(x+12)=0
it means x multiplied by x = X² then x multiplied by 12 = 12x
so this means x or (x+12) equals to zero
x=0 and (x+12)=0
x+12=0
x=-12
so the solution set is {-12,0}
but can also be done by formula method
Answer:
90degrees
Step-by-step explanation:
The sum of complimentary angles will always be 90degrees
Answer:
5 minutes = 3
1 hour = 3
1 hour 50 minutes = 6
2 hours = 6
2 hours 1 minute = 9
3 and a half = 12
Step-by-step explanation:
-10 is equal to 5 subtracted from a number
Assume that the number is x
So the equation will be

we put x at first because in subtraction the number after the word "from" comes first
Now let us find x
We need to move 5 to the left side to find x, so add 5 to both sides

The number is
Answer: maybe c or d, but I could be wrong :/
Step-by-step explanation: