Answer:
15cm
Step-by-step explanation:
- c2=a2+b2 thus do the math and 15 comes
Answer: 918km^2
Step-by-step explanation:

Let x be the new dimension of the area;


Answer:
the third selection is corret
Step-by-step explanation:
Ax + by + c = 0, k = - a/b.
so The slope of the first line =
,
the slope of the second line =
;
So these two lines are parallel and they don't intersect
Answer:
I think its B
Step-by-step explanation: I'm not 100% sure