Answer:
-7
Step-by-step explanation:
you subtract 12 to get -9w=63 then you divide the -9 into the 63 and get -7 as ur awnser
We have the following equation:
ax2 + bx + c = 0
Using the resolver we have:
x = (- b +/- root (b2 - 4ac)) / 2a
We have:
b2 - 4ac <0
Therefore the root is negative
Answer:
It has two complex solutions
option B
She should have added 2 to both sides of the equation instead of subtracting 2.
2x -2 = 14
Add 2 to both sides:
2x = 16
Divide both sides by 2:
x = 8
Answer:
3.6
Step-by-step explanation:
The average of 9 scores is x.
average = (sum of scores)/(number of scores)
x = (sum of scores)/9
sum of scores = 9x
The sum of the 9 scores is 9x.
The tenth score is 36 more than x, so it is x + 36.
The sum of the 10 scores is 9x + x + 36 = 10x + 36.
The average of the 10 scores is (10x + 36)/10 = x + 3.6
The difference of averages is
x + 3.6 - x = 3.6
Answer:
56 meters
none of these
Step-by-step explanation:
4*2=8
8*6=48
48+8=56