Find the measure of the exterior angle

4x + 80

Step-by-step explanation:

Explanation:

Use the remote interior angle theorem

The two interior angles 65 and x+15 add to the exterior angle 3x-10

These interior angles are not adjacent to the exterior angle

(65) + (x+15) = 3x-10

x+80 = 3x-10

80+10 = 3x-x

2x = 90

x = 90/2

x = 45

This leads to

3x-10 = 3*45-10 = 135-10 = 125

The exterior angle is 125 degrees

the largest number of the four options is 1.8 x 10-2

you have it in scientific notation.

1.80 x 10-6   = 0.00000180

1.80 x 10-4   = 0.000180 (bigger, or "less small", than the former one)

so

1.8 x 10-2       = 0.0180. as you see. the "less small", or the biggest one of them all.

as you have negative exponent, it means you are dividing 1.8 by 100 (i.e. moving the dot towards left, two times).

if you had positive exponent for the scientific notation, power of tenths, you would be multiplying times 100 (moving the dot towards right) as below:

1.8 x (10)2 = 180

so. if you have negative exponent in scientific notation, move the dot toward left. if it is positive, toward right as many times the exponent tells you.