20. what is the missing value to the nearest hundredth

tan _ = 15

• 0.97°
• 0.27°
• 88.09°
• 86.19°

86.19°

Step-by-step explanation:

Let x represent the missing value.

The given trigonometric equation becomes:

We take the inverse tangent of both sides to obtain:

This implies that;

We use at least a scientific calculator to evaluate this and obtain:

To the nearest hundredth, the missing value is

x = -3

y = -18

step-by-step explanation:

to solve by substitution, substitute one variable and solve for the other. then substitute again to find the remaining variable.

x-1/3(3x-9) = -3 since y=3x-9 substittute y.

x-1/3(3x-9)=-3

x + x +3 = -3

2x+3=-3

2x+3-3= -3-3

2x=-6

x=-3

substitute again into y=3x-9

y=3(-3)-9

y=-9-9

y=-18

range is infinite on both x and y axis positive and negative

step-by-step explanation: