Answer:
x = 3 x = 7 Okay well I got C. f(x) = x2 - 10x + 21 I got it because u subtract and add at the last part.
Step-by-step explanation:
A system is linearly dependent, when multiplying one of the equations by a scalar, you get the other equation.
We then have the following system of equations:

Let's rewrite the system of equations.
To do this, let's multiply equation 1 by scalar -2:

We observe that we obtain equation 2 of the system.
Therefore, the system is linearly dependent.
Answer:
the following system is dependent:
x - y = 2 and -2x + 2y = -4
Answer:
x=0
Step-by-step explanation:
in the quadratic formula to only have one solution
for 
so we have


if we insert in the formula we have

since a≠0

Answer:
8
Step-by-step explanation:
A=πr^2
64π=πr^2
since answer is in terms of pi, ignore the pi.
sqrt(64)=8