In the figure, yx−→− and yz−→− are tangents to circle a at points x and z, respectively.
mxz=140∘ mxsz=220∘
what is the measure of ∠xyz ?
enter your answer in the box.

Asap describe the transformations required to obtain the graph of the function f(x) from the graph of the function g(x). f(x)=-5.8sin x. g(x)=sin x. a: vertical stretch by a factor of 5.8, reflection across y-axis. b: vertical stretch by a factor of 5.8,reflection across x-axis. c: horizontal stretch by a factor of 5.8, reflection across x-axis. d: horizontal stretch by a factor of 5.8 reflection across y-axis.

Let f(x) = 3 − x . find the average rate of change of f(x) from x = a to x = a + h and simplify your answer so that no single factor of h is left in the denominator.

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?