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Answer:
b. 4
Step-by-step explanation:
you divide by 4 for each one, that's how you know
Answer:
Add the equations to eliminate x
Step-by-step explanation:
Let's go through each of these statements
1) Add the equations to eliminate x
y = x + 10
+
y = -x + 3
_______
2y = 13
This works!
Answer:
The roots are not real.
Step-by-step explanation:
To prove : The roots of I/2 +9 (1-k) are real for all real values of k ?Solution :
The roots are real when discriminant is greater than equal to zero.
i.e b2-4ac>0 But the roots are imaginary therefore the roots of the given equation are not real for any value of k.If x²+kx+k=0, find the value of k, If the roots are real & equal.
