Za and _b are complementary angles. Za measures 59
What is the measure of _b?

The complementary angle measures 31 degrees

31°

Step-by-step explanation:

When two angles add up to 90, they are called complementary angles

∠a = 59

∠a + ∠b = 90

59 + ∠b = 90

 ∠b = 90 - 59

∠b = 31°

1 1/4 hours

step-by-step explanation:

2/4 + 2/4 + 1/4 = 5/4 or 1 1/4

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.