For 3 + (-9), you should subtract 9 from 3. When you add a negative number it's the same thing as just subtracting said number. So, to solve this problem, you would change 3 + (-9) to 3 - 9, which is -6.
Answer:
336
Step-by-step explanation:
hope this helps!
Answer:
slope= 3/2
y-intercept= -1/2
Step-by-step explanation:

The product of the gradients of 2 perpendicular lines is -1.


Substitute a coordinate into the equation.
When y=7, x=5,

Your answer is option D. √(15² + 19²). This is because the line PQ is the hypotenuse of this right triangle, so you can use the formula a² + b² = c² to find its length, which means it would equal the square root of 15² + 19², which is what option D expresses.
I hope this helps!
The area of a rectangle is Length multiplied by Width
So plug the numbers in to find the width
1/2 = 2/3*W
Solve as follows:
1/2 divided by 2/3 =3/4 so,
W=3/4
The width of the parking lot is 3/4 of a mile