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Angle ADB = 80 degrees

Step-by-step explanation:

This is a parallelogram so:

AD || BC

AB || DC

Using the Alternate Interior Angles Postulate, you can find that:

Angle BDC = Angle DBA

So because Angle BDC is 28 degrees, we know that Angle DBA is also 28 degrees.

Now, we can figure out what angle ADB is using the property of triangles that all the angles of add up to 180:

Angle ADB + 72 + 28 = 180

Angle ADB + 100 = 180

Angle ADB = 80

So, Angle ADB is 80 degrees.

option a.

step-by-step explanation:

if you look closely at the graph, we can notice that the function is not defined at two different points.

if you look at functions b and c, you will notice that both functions are not defined at just one point. the function b is not defined at x= -5/2 and function c is not defined at x=-5. both options are discarded, given that our function should not be defined at two fiferent points.

now, if you look closely at the graph you will notice that the function sketched is not defined at x=5 and x=-2.

answerthe vertex form

step-by-step explanation: