If the sin 30° = 1 over 2 , then the cos 60° = (1 point)

question 5 options:

1)

0, because the angles are complementary

2)

1 over 2, because the angles are complementary

3)

square root 3 over 2, because the angles are complementary

4)

1, because the angles are complementary

1 over 2, because the angles are complementary

Step-by-step explanation:

Note that this represents a standard 1 - √3 - 2 triangle (see attached)

cos 60° = adjacent / hypotenuse = 1 / 2

as a sanity check, you can check the given sin 30° = opposite / hypotenuse 1/2 . We find that this checks out according to the attached picture, so our solution is correct.

you would have to sell 24 bracelets.

step-by-step explanation:

84/3.5 = 24