Trigonometry
Reference Angles and Triangles
The value of Sin 420* is equal to?

sqrt(3)/2

Step-by-step explanation:

sin(420) = sin(420-360)

= sin(60) = sqrt(3)/2

sqrt: square root

the answer is a.

step-by-step explanation:

in three games of golf, alex shot two under par four times.

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)