15. Find the angle measure indicated. Assume that lines which appear to be tangent are tangent.
HURRY PLEASE

Recall that the angle formed by two tangents is half the difference of the intercepted arc.

Multiply through by 2 to get:

26x+20=49x+10-180+13x+10

Group similar terms to get:

26x-13x-49x=10-180+10-20

-36x=-180

x=5

Step-by-step explanation:

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,