The radiusof <span> (x^2−6x)+(y^2−10y)=−18 </span>is 4
IM CONFUSED.
Are u supposed to solve it or leave it as an expression. 4/8r - 3 1/2
Answer:
Chicago - Denver:
, Mexico City - Denver: ![d_{2} = 1416.87\,mi](https://tex.z-dn.net/?f=d_%7B2%7D%20%3D%201416.87%5C%2Cmi)
Step-by-step explanation:
The latitudes of Chicago, Mexico City and Denver are 42° 35' N (+ 42.583), 19° 29' 52'' N (+ 19.498) and 39° 44' 21' N' (+ 39.739), respectively.
The distances are:
Chicago - Denver
![d_{1} = \left(\frac{42.583 - 39.739}{1}\right)\cdot (70\,mi)](https://tex.z-dn.net/?f=d_%7B1%7D%20%3D%20%5Cleft%28%5Cfrac%7B42.583%20-%2039.739%7D%7B1%7D%5Cright%29%5Ccdot%20%2870%5C%2Cmi%29)
![d_{1} = 199.08\,mi](https://tex.z-dn.net/?f=d_%7B1%7D%20%3D%20199.08%5C%2Cmi)
Mexico City - Denver
![d_{2} = \left(\frac{39.739-19.498}{1}\right)\cdot (70\,mi)](https://tex.z-dn.net/?f=d_%7B2%7D%20%3D%20%5Cleft%28%5Cfrac%7B39.739-19.498%7D%7B1%7D%5Cright%29%5Ccdot%20%2870%5C%2Cmi%29)
![d_{2} = 1416.87\,mi](https://tex.z-dn.net/?f=d_%7B2%7D%20%3D%201416.87%5C%2Cmi)
Answer:
x1 = 3
Step-by-step explanation:
first set up the proportion (write as fractions):
(y1/x1) = (y2/x2)
then fill in the variables:
4/x1 = 8/6
now cross multiply:
8 • x1 = 6 • 4
simple algebra:
8 • x1 = 24
x1 = 24/8
x1 = 3
Answer:
50 miles per hour
Step-by-step explanation:
Just divide 350 by 7