Answer:
The coordinates are x = -1 and y = -2.
Step-by-step explanation:
Given:
Equations are 2x-4y=6 and 3x+y=-5.
Now, to find the coordinates.
...........(1)
...........(2)
So, first we solve the equation 1 to get the value of 
.
Subtracting both sides by 
we get:
Dividing both sides by 2 we get:
Now, we put the value of in equation 2 to get 
.
On solving the whole equation we get :
And, now putting the value of in equation (1) we get :
on solving we get:
Therefore, the coordinates are x=-1 and y=-2.
Answer:
can you show me a pic of the question.
Step-by-step explanation:
Answer:
k = 3
Step-by-step explanation:
If p-1 is a factor of p⁴+p²+p-k, then we can express the polynomial in form
p⁴+p²+p-k = (p-1) * (ap³ + bp² + cp + d)
where a,b,c,d are constants. The important thing is that we can subst in p = 1 to make the polynomial zero. We can do this for original polynomial. WE must have to equal to 0 when we use p = 1 substitution...
1⁴+1²+1-k = 0
3 - k = 0
k = 3
Answer:
30
Step-by-step explanation:
Subtract the 1023 reading from the 1053 one:
1053
-1023
---------
30
Her electric consumption was 30.
