The distance formula is:
![d= \sqrt{(x_1-x_2)^2+(y_1-y_2)^2}](https://tex.z-dn.net/?f=d%3D%20%5Csqrt%7B%28x_1-x_2%29%5E2%2B%28y_1-y_2%29%5E2%7D%20)
We are given two points in the form (x,y), so plug in the values to the distance formula:
![d= \sqrt{(-10-15)^2-(12-12)^2}](https://tex.z-dn.net/?f=d%3D%20%5Csqrt%7B%28-10-15%29%5E2-%2812-12%29%5E2%7D%20)
Next we can simplify. We know that 12-12 is 0, so we can drop it from the equation, as it will not affect our answer. Also, we know that -10-15 is -25:
![d= \sqrt{(-25)^2}](https://tex.z-dn.net/?f=d%3D%20%5Csqrt%7B%28-25%29%5E2%7D%20)
The square and square root cancel each other out leaving us with 25.
The answer is 25.
Answer:
-45, 12, 83, 90
Step-by-step explanation:
Answer: 4.7 is 10 as much as the number 0.47.
If you multiply 0.47 x 10 it will equal 4.7
Answer:
(2, -3)
Step-by-step explanation:
Apparently, the equations are supposed to be ...
The solution for x can be found by subtracting the second equation from the first:
(4x +y) -(3x +y) = (5) -(3)
x = 2 . . . . . . . matches the second answer choice
Y can be found from either equation:
y = 5 - 4x . . . . . subtract 4x from the first equation
y = 5 -4(2) = -3
The solution is (x, y) = (2, -3).
Answer:3
Step-by-step explanation: