Answer:
infinitely many solutions
Step-by-step explanation:
We want to find solution to the system:
-4y=-20x+40
y+10=5x
We make y the subject in the second equation to get;
y=5x-10
We substitute y=5x-10 into the top equation to get:
We expand to obtain;
This implies that:
Therefore the system has infinitely many solutions.
Answer:
Step-by-step explanation:
We have been given four choices out of which we need to select the choice which is trinomial.
Trinomial means polynomial having three terms.
A) c2 + c + 6
It has 3 terms.
B) c2 − 16
It has 2 terms.
C) −8c
It has 1 term.
D) c3 + 4c2 − 12c + 7
It has 4 terms.
We see that only choice A) has three terms.
Hence correct choice is
Answer:
0.44444444 or 4/9
Step-by-step explanation:
Since we know the value of , we can rewrite the equation replacing the variables.
Now solve. While solving, remember the order of operations.
or
Step-by-step explanation:
The ratio cosine tell us that
In other words,
The side adjacent to angle a is 9. The hypotenuse is 41.
So