Answer:
x = -9, -3
Step-by-step explanation:
x^2 + 12x + 27 = 0
We need 2 numbers whose product is + 27 and whose sum is + 12. These are 3 and 9. So the factors are:-
(x + 3)(x + 9) and this = 0
So (x + 3) = 0 or x + 9 = 0
x = -3 , -9
Answer:
81
Step-by-step explanation:
2x+6=84
2x=78
81
find your own way
Answer:
She walked 1 1/5 miles per hour.
Step-by-step explanation:
Answer:
1/4, or 4 times smaller
Step-by-step explanation:
Since the surface area of a cube is just the combination of the area of all of the square sides, and the formula for those is s^2, if the side length was decreased by 1/2 then the surface area would decrease by (1/2)^2=1/4. Hope this helps!
Answer:
The answer is 0.47
Step-by-step explanation:
You can get this answer by doing division 5 divided by 2.35 and
then you get 0.47