What is the sum of m A and m B if angles A and B are complementary? A. 0° B. 45° C. 90° D. 180°

c.90

Step-by-step explanation:

Because complementary mean 90 degrees,look it up.And it does not give any other angles.100 percent/TRUST

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116