Answer:
x = 17
Step-by-step explanation:
Since the triangles are congruent
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3x+4 = 72-x
Add x to each side
3x+4+x = 72-x+x
4x+4 = 72
Subtract 4 from each side
4x+4-4 = 72-4
4x = 68
Divide each side by 4
4x/4 = 68/4
x = 17
Answer.:Step-by-step explanation:
Answer:
An altitude of any triangle is a line from a vertex that intersects the opposite side at the right-angled vertex.
Therefore yes it does intersect the opposite side.
Answer:
They will meet after four hours
Step-by-step explanation:
The boat moving at 2.5 mph will have travelled 10 miles after 4 hrs, and the boat moving at 5 mph will have travelled 20 miles after 4 hrs
If you would have to graph x=7, you probably know that this is a vertical line at, well, x=7.
| x | = 7 is nothing more than two vertical lines, namely x=7 or x=-7, as you already wrote down.
| x | = -8 has no (real) solutions, so there is nothing to graph.
