Answer:
y=4.5x
Step-by-step explanation:
It's right on Khan Academy:)
Answer:
The run is -7.
Step-by-step explanation:
Since we know that slope = rise/run, we can calculate the run by inputting the given numbers.
So,
-3 = 21/x and we need to solve for x.
When we cross multiply we get -3x=21.
Then, divide -3 on both sides and x = -7
Helen should of put 0 first, because if you're gonna divide, you need to put the product first, then one of the factoes.
So instead it should be 0÷(-7)=0
<span>Step 1 :</span><span>Simplify 13y2-5yx - 23x2</span><span>
1.1 </span> Factoring <span> 13y2 - 5yx - 8x2</span> Try to factor this multi-variable trinomial using trial and error<span> </span>Found a factorization : (y - x)•(13y + 8x)
Final result :<span> (y - x) • (13y + 8x)</span>
0 = x + 2 + x^2
x^2 + x + 2 = 0
a = 1, b = 1, c = 2
discriminant = b^2 - 4ac = 1^2 - (4 x 1 x 2) = 1 - 8 = -7
