2sin(4x)+6=5 select one or more expressions that together represent all solutions to the equation. your answer should be in degrees. assume n nn is any integer. solve sinusoidal equations

Let's solve the sine equation.

1. Express sine function in the left side of equation:

.

2. Use the genereal solution to get the solution of your equation:

, where .

3. Find :

.

4. Substitute part 3 into part 2 and express x:

, where

, where .

5. Solutions of your equation are:

, where .

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.

answer: b.36 feet

step-by-step explanation: