Question

How do you do this??

Answer 1

The answer for number 6 is 17.

Answer 2

Answer:

5. x = 20°, missing angle is 59°

6. x = 17°, angle is 34°

Step-by-step explanation:

5.

All the angles in a triangle need to add up to 180°, and we have a 90° angle and a 31° angle. That means:

(3x - 1) + 90 + 31 = 180 --- set up equation

(3x - 1) + 121 = 180 --- combine like terms

3x - 1 = 59 --- subtract 121 from both sides

3x = 60 --- add 1 to both sides

x = 20 --- divide both sides by 3

Now that we know what x is, we can solve (3x-1)°

3(20)-1

60 - 1

59°

6.

First, we need to find the missing angle inside the triangle.

The missing angle and the 94° angle are supplementary, meaning they add up to 180°. We can solve for the missing angle like this:

Let the missing angle = y

y = 180 - 94

y = 86°

Now we can solve for x:

86 + 60 + 2x = 180 --- set up equation

2x + 146 = 180 --- combine like terms

2x = 34 --- subtract 146 from both sides

x = 17° --- divide both sides by 2

Now 2x is:

2(17)

34°