Which of the following sets represents the domain of the function shown? {(2, 7}, (15, 13), (21, –4), (24, 18)}

a

{–4, 2, 7, 13, 15, 18, 21, 24}

b

{(7, 2), (13, 15), (–4, 21), (18, 24)}

c

{2, 15, 21, 24}

d

{–4, 7, 13, 18}

Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β

How to solve a simultaneous equation involved with fractions?

The weight of an object in the water is 7% of its weight out of the water. what is the weight of a 652g object in the water?