-x over 6 -1=-13

show work pleaseee

x=-72

Step-by-step explanation:

-x/6-1=-13

add 1 to both sides

-x/6=-12

multiply 6*-12

-72

x=-72 because -72/6=-12

step-by-step explanation :

we know that

the measurement of the outer angle is the semi-difference of the arcs which comprises

in this problem

m< xzy is the outer angle

substitute the values

the measure of angle xoy is equal to

> by central angle

substitute the value

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,