Which could be an equation for the graph?

y = cos(x + 3)
y = –3cos(x)
y = –3sin(x)

While scuba diving, rajeev dove to a depth of 12.6 feet below the surface of the water and then descended another 8.7 feet. what expression can be used to find rajeev's new position? 12.6 – 8.7 –12.6 – 8.7 –12.6 – (–8.7) 12.6 – (–8.7)

Divide. reduce the answer to lowest terms.5 2/3 ÷ 3 1/9

Run a linear regression to determine an equation (y=mx+b y=mx+b)