Answer:


Step-by-step explanation:
because 8(8)=64 and 8 is the positive square root of 64.
because 17i(17i)=289i^2=-289(-1)=-289.


The value of n=12
The question might be wrong but according to your question this is the right answer
<span>b. f(x) = x^2 -4x -5 i think</span>
Answer:
0.2
Step-by-step explanation:
C.O.P-the constant value of the ratio of two proportional quantities x and y, typically the equation is Y=KX.
So to find that you would divide y by x.
In this case the dot is between 0 and 2 on y so it is 1 and between 4 and 6 on x so it is 5.
Then you would divide 1/5 and get 0.2 or you could look at the end of the graph and notice that the last point is at (10,2) and divide 2/10 and get the same thing.
HOPE THIS HELPS!!!
First expand...
(3x+7)^2 = 9x^2+42x+49
Bring down -84x...
9x^2+42x+49-84x
Solve...
9x^2-42x+49
Factor...
(3x-7) (3x-7) = (3x-7)^2