Answer:
k=-20
Step-by-step explanation:
-12k=240
k=-20
A
the domain is the x-axis number soooo
Answer:
about 1 inch
Step-by-step explanation:
Answer:
42 cm is the perimeter
Step-by-step explanation:
<em>Brainleast </em><em>answer </em><em>mo </em><em>nalang </em>
Let x be the speed of the first car in miles per hour. After 12 hours it will have gone 12x miles. The other car, driving east, has speed x+ 4. After 12 hours it will have gone 12(x+ 4) miles. Again by the Pythagorean theorem,
(12x)^2+(12(x+4)^2=600^2. Solve that equation for x.
