X^2+2x+1 is a perfect square trinomial
true of false?

True.

Step-by-step explanation:

It is because it is in the form and this equals .

Why it is in that form:  well comparing  , we have . Testing, plug in those values:

.

This has the squared form of .

Test if you like:

Use foil to expand:

First: x(x)=x^2

Outer: x(1)=x

Inner: 1(x)=x

Last: 1(1)=1

---------------Add together

It does indeed equal.

it would be 6xy and -16xy.

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq