Answer:
The correct answer is 28
Step-by-step explanation:
The first one for 56 and 26 would be 2
and for the second of 9,12 and 21 it would be 3
Answer:
x = -2
y = 6
Step-by-step explanation:
y= -3x
x + y =4
Substitute y = -3x from the first equation into the second equation
x + (-3x) = 4
Combine like terms
-2x = 4
Divide by -2
-2x/-2 = 4/-2
x = -2
Now find y
y = -3x
y = -3(-2)
y = 6
Answer:
x = 0.7071
y = 0.5
Step-by-step explanation:
y=-x^2+1
y=x^2
then:
-x^2+1 = x^2
2x^2 = 1
x^2 = 0.5
x = 0.7071
y = 0.5