Answer: (-infty, infty)
Step-by-step explanation:
The domain of a quadratic function is the set of real numbers.
D.
This is because it is a question that involves doing actual math rather than just asking and getting an answer.
Convert 14,563.98 to words gives us fourteen thousand five hundred sixty-three and ninety-eight hundredths.
Answer: pretty sure you can buy 48 oranges
Step-by-step explanation:
To find a perpendicular line you first need to see the equation in slope intercept form. To do that you need to solve for y.
2x - 5y = 20 ---> subtract 2x from both sides
-5y = -2x + 20 ---> divide by -5
y = 2/5x - 4
Now that you have this, note that a perpendicular line has opposite and reciprocal slope. Since the slope in our equation is 2/5, that means the new line will have -5/2 slope. So we use the point given and the slope to find the y intercept.
y = mx + b
-8 = -5/2(7) + b ---> multiply
-8 = -35/2 + b ---> add 35/2 to both sides
19/2 = b
Now use our new slope and new y intercept to write the new equation.
y = -5/2x + 19/2
