In circle o, what is m? 50° 55° 125° 250°

The measure of angle JAM is 55°

Step-by-step explanation:

The correct question is

Find the measure of angle JAM

See the attached figure to better understand the problem

step 1

Find the measure of angle JAK

we know that

The measure of the inner angle is the semi-sum of the arcs comprising it and its opposite.

so

m∠JAK=(1/2)[arc KJ+arc LM]

substitute the given values

m∠JAK=(1/2)[170°+80°]=125°

step 2

Find the measure of angle JAM

we know that

m∠JAK+m∠JAM=180° ------> by supplementary angles

we have

m∠JAK=125°

substitute

125°+m∠JAM=180°

m∠JAM=180°-125°=55°

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1