Answer:
For 2a, we are completing the square (see the image below)
To find the stationary point (2b) you change the sign of the number inside the brackets and keep the number outside the same i.e (-2, 7)
Hope this helps!
Answer:
x = 1
y = 2
Step-by-step explanation:
y = 2x
-6x + 6y = 6
-6x + 6(2x) =6 Substitute the fist equation for the value of y
-6x + 12x = 6 Combine like terms
6x = 6 divide
x = 1
Then, substitute the value of x in the equation for y
y = 2x y = 2(1)
y = 2
Answer:
Step-by-step explanation:
Solution,
Here
Mean=10
N=6
Efx=7+14+6+p+8+14
=49+p
Now
Mean=Efx/N
or,10=49+p/6 ( Therefore,10 is multiplied to 6)
or,60=49+p
or,p=60-49
p=11
