If arc mdc equals 4x - 2 the arc mbc is equal to 20° and angle a measures 12°. find the value of x.

The value of x is 11.5.

Step-by-step explanation:

Since, when one tangent and one secant intersect outside a circle, then the measure of the intersection angle is half of the difference of the intercepted arcs,

In the given diagram,

AD is the secant and AC is the tangent of the circle,

Also, AD and AC intersect at A,

Thus, by the above statement,

Here,

to plot points   for x just start at the origin (middle) and go to the left however many times it say(if the number is a positive) if the number is a negative then go right however many times it says if it is 0 go nowhere

now keep you pencil there and go up however many times it says on y(if it is positive) if it is negative then go down however many times it says. if it says 0 go nowhere.

you have just plotted a point! now when you finish plotting all of them connect them with a ruler

plot each point as (-3, 7), (0,4), (3,1), (8,-4)   in the parenthesis on the left of the comma is x and the right is y.

logv3(x+2)=1

rewrite in exponential form:

logb(x) = y is equal to b^y =x

b = 3, y = 1

now solve for x:

3^1 = x+2)

x = 3-2

x = 1

see the picture for the graph.