Answer:
from what I know it should be always negative
Step-by-step explanation:
Answer:
4900
Step-by-step explanation:
70^2 means 70*70
70*70=4900
Answer:
45.44/71 - 1 = -0.36 = -36%
36% decrease.
Answer: The set does not have a solution
Step-by-step explanation:
Adding Equations 1 & 3 we get 5x = 7. This gives x = 7/5
Putting this value of x in eq. 2 we get
-2y + 2z = -1-(7/5) or
2y - 2z = 12/5 or 5y - 5z = 6
Multiplying eq. 1 by 2 we get
4x + 2y - 2z = 6
adding this with eq. 2 we get 5x = 5 or x = 1
As the common solution for x from equations 1&3 does not satisfy eq. 1&2 it comes out that the three equations do not have a common solution.
Same can be verified by using different sets of two equations also.
Answer:
5x2−9x=7 (Option B)
Step-by-step explanation:
this is correct 100%
