Find the measure of angle 1

123

Step-by-step explanation:

180-57=123

OK OK ok

123°

Step-by-step explanation:

A flat line is 180° so that means 57-180=123 so therefore the angle is 123°

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!