A cylindrical water tower has a base radius of 9 ft and a height of 11 ft. How many gallons of paint would it take to paint the entire tank if one gallon covers 200 square feet? find the surface area and # of gallons

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

21 type the correct answer in each box. if necessary, round your answers to the nearest hundredth the vertices of abc are a(2,8), b(16, 2), and c(6,2). the perimeter of abc is units, and its area is square units

Which of these lines passes through the point (1,-1) and has a slope of -3?