Trigonometric Identities

Use an identity to write each expression with a single trigonometric function. see attached

Trigonometric equation

(See attached file for full problem description)

Trigonometric equation

(See attached file for full problem description)

Polar coordinates

see attached

System of equations

see attached

Slope, y intercept

What are the slope, y-intercept, and equation of the line passing through the points (-1,1.2) and (3,-2)? a. slope = -0.8, y-intercept = 0.4, y = -0.8x+0.4 b. slope = 0.8, y-intercept = 0.4, y = 0.8x+0.4 c. slope = -0.8, y-intercept = 1.5, y = -0.8x+1.5 d. slope = -1.25, y-intercept = 0.05, y = -1.25x+0.05

Length of Line

Please see attached file. If lines A, B and C are parallel and length a=2.8, c=3, b=3.2, what is length d? a. 1.88 b. 3.43 c. 3 d. 3.2

To find the period of trigonometric function

see attached please

Equation of curve

please review attachment

Matrix problem

(See attached file for full problem description)