The slope of cd is 2/5
the slope of ef is -4-y/10
the lines are parallel so the slopes are equal
-4-y/10= 2/5
-4-y=2/5x10=4
-y=4=4=8
y=-8
Answer:
5 miles
Step-by-step explanation:
This is because if you draw a line going west and label it as 4 miles, then draw another line going south and label it 3 miles, you form a right angle, right? So, the fastest way to go back would be taking a diagonal-like route back to the beginning. Does this shape look familiar to you? Right! It's a right triangle. And do the numbers 3, 4, and 5 sound familiar to you? Yup, it's a Pythagorean triplet. If the legs of a right triangle are 3 and 4, the hypotenuse is 5. Why am I saying this? Because, in the drawing you just did, the 4 miles west and 3 miles south were the legs, and the diagonal path back to the beginning is the hypotenuse. Get it now?
Happy to help! :)
Move all the terms to the left side and set equal to zero. Then set each factor equal to zero.
A= c+d/b+d
Answer:
<h3><u>x>4</u> is the right answer.</h3>
Remember that the altitude of a triangle is the length of a segment which is perpendicular to the side opposed to a vertex and that passes through the vertex.
On the diagram, we can se that the segment AD is perpendicular to BC and passes through the point A. Therefore, AD is an altitude of the triangle.
