The formula of the distance between two points:
![A(x_A;\ y_A);\ B(x_B;\ y_B)\\\\|AB|=\sqrt{(x_B-x_A)^2+(y_B-y_A)^2}](https://tex.z-dn.net/?f=A%28x_A%3B%5C%20y_A%29%3B%5C%20B%28x_B%3B%5C%20y_B%29%5C%5C%5C%5C%7CAB%7C%3D%5Csqrt%7B%28x_B-x_A%29%5E2%2B%28y_B-y_A%29%5E2%7D)
We have:
![A(21;-30);\ B(3;\ 8)](https://tex.z-dn.net/?f=A%2821%3B-30%29%3B%5C%20B%283%3B%5C%208%29)
Substitute:
![|AB|=\sqrt{(8-(-30))^2+(3-21)^2}=\sqrt{38^2+(-18)^2}\\\\=\sqrt{1444+324}=\sqrt{1768}\approx42.05](https://tex.z-dn.net/?f=%7CAB%7C%3D%5Csqrt%7B%288-%28-30%29%29%5E2%2B%283-21%29%5E2%7D%3D%5Csqrt%7B38%5E2%2B%28-18%29%5E2%7D%5C%5C%5C%5C%3D%5Csqrt%7B1444%2B324%7D%3D%5Csqrt%7B1768%7D%5Capprox42.05)
Answer:
B. 42.05 units.
Answer:
1047 m = c
Step-by-step explanation:
Given : Mr.kelly pays $12,564 a year for rent. His rent is a constant amount each month.
To Find:Which equation represents the amount he pays her month if m=months and c=total rent paid for the year?
Solution :
Since he pays for a year (12 months) = $12,564
Since His rent is a constant amount each month.
He pays for one month = ![\frac{12564}{12}=1047](https://tex.z-dn.net/?f=%5Cfrac%7B12564%7D%7B12%7D%3D1047)
Thus the amount he pays per month $1047
If he pays for m months then the total amount(c) of rent for m months
⇒1047 m = c
Hence equation represents the amount he pays her month if m=months and c=total rent paid for the year: 1047 m = c
answer choice A could be correct
To the left, if it is negative then we move it to the right.