12.5 + 3.8x= ?
12.5 + 3.8(7.9)
3.8*7.9=30.02
12.5+30.02=42.53
42.53 would be the answer
Answer:
Step-by-step explanation:
The scatter plot trends downward from left-> right, meaning that it is negative. Next, use two points to solve for the value for the slope.
In this case, I will use (-3 , 1) & (0 , 0)
Use the following equation. m = slope:
Let:
Plug in the corresponding numbers to the corresponding variables:
Your answer will be:
Answer: 16 would be the answer. Just do 2 times 8 without the 2 00's and you get 16.
A quadratic equation is an equation of the form ax^2 + bx + c =0.
Given the equation: -2 = -x + x^2 - 4, we write it in the form of a standard quadratic equation as follows:
x^2 - x - 4 + 2 = 0
x^2 - x - 2 = 0
Comparing this with the standard quadratic equation gives that a = 1, b = -1 and c = -2
Therefore, the correct substitution of the values of a, b and c from the given equation into the quadratic formular is: <span>x = [-(-1) + or - sqrt((-1)^2 - 4 x 1 x -2)] / (2 x 1)</span>