Answer:
a. m DCB =<DAB=120 opposite angle of the parallelogram are equal
again
BP=PD diagonal bisect it
3x+7=-x+17
3x+x=17-7
4x=10
x=10/4=5/2
b. BD =3x+7-x+17=3×5/2+7-5/2+17=2×5/2+24=5+24=29
Answer: 
Step-by-step explanation:
By definition, the perimeter of a rectangle is:

Where "l" is the lenght and "w" is the width.
If you solve for "l":

In this case, you know that the following expression represents the perimeter of the rectangle:

And the width of that rectanle is represented wih this expression:

Therefore, based on the explained above, you can conclude that the lenght of that rectangle is given by:

Finally, simplifying the expression, you get:

Answer:
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Step-by-step explanation:
Answer:
y = -5x + 11
Step-by-step explanation:
lmk if you want an explanation
Answer:

Step-by-step explanation:
The given line PQ passes through the points P(-5,-13) and Q(5,17) .
Find the slope using the formula:

Plug in the points to get:



Use the point-slope formula :

Substitute the point (5,17)

Expand:

The standard form is when the equation is put in the form

Regroup the terms to get:

The standard form is
