Answer:
Step-by-step explanation:
6x - 5y = 15....... (1)
x=y+3..........(2)
Putting (2) in (1)
6(y + 3) - 5y = 15
6y + 18 - 5y = 15
6y - 5y = 15 - 18
y = -3
And x = y + 3
x = -3 + 3
x = 0
Answer:
The third and fifth are correct
The second one is NOT correct
Answer:
x = 0
Step-by-step explanation:
200t + 8t^3 - 80t^2
8t(25 + t^2 - 10t) ....rearrange
8t(t^2 - 10t + 25)
8t(t - 5)(t - 5)
8t(t - 5)^2 <==
Answer:

Step-by-step explanation:

Calculate 4 to the power of 3 = 64

Divide 84 by 14 = 6

Calculate 6 to the power 2 = 36


<u>OAmalOHopeO</u>