Answer:

Therefore, Option 1 is correct.
Step-by-step explanation:
We have been given the quadratic equation:

If we compare it will general quadratic equation which is: 
Here, a=5,b=3 and c= -4.
Now, we will use the formula:
And then 
Where,

Therefore, Option 1 is correct.
Answer:
Luca has 55 crayons as 42 + 13 = 55
Answer:
367.5
Step-by-step explanation:
5% of 350 is 17.5
$350+$17.5=367.5
Answer:
So you make a number line right, and make from 0 to 1. You would put 8 dashes between 0 and 1. Once you finished that, you would go to the third dash, and that will be 3/8 on a number line.
Step-by-step explanation:
I hope this helps! :)
Answer:
-2
Step-by-step explanation:
Let's call the number x. The statement tells us that
x^2 - 10 = 3x, or
x^2-3x-10 = 0
Factoring:
(x-5)(x+2) = 0. Here, we see that there are two solutions: x = 5 and x = -2. So, the negative solution is x = -2.