By PEMDAS (or any alternative), <em>the first step should be to divide</em>, as D comes before A. So, 16 ÷ 4.
14. Trick question, ignore the side.
Call the angle b.
34 + b + b = 180
2b = 146
b = 73
choice b
15. That's intersecting chords so the product of the segment lengths are equal:
5(22)=10 x
x = 5(22)/10 = 11
choice a
16. Intersecting tangent and secant;
![x^2 = 5(19)](https://tex.z-dn.net/?f=x%5E2%20%3D%205%2819%29)
![x = \sqrt{95} \approx 9.75](https://tex.z-dn.net/?f=x%20%3D%20%5Csqrt%7B95%7D%20%5Capprox%209.75)
Choice a
Answer:
about 180 degrees
Step-by-step explanation:
It's not 100% clear what you're asking for here.
If you begin with <span>f(x) = sin x, and write the new function g(x) = sin (x-pi/2), you get
g(x) = sin x cos pi/2 - cos x sin pi/2 = -cos x
This has a graph obtainable by shifting the graph of sin x pi/2 units to the right.
h(x) = sin (x+pi/2) has a graph obtainable by shifting the graph of sin x pi/2 units to the left.</span>