If x = 5, y= 2 and z=3 then xz (4y- 2z) is a . 3445 b. 210 c. 30 d. 1,007

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

(urgent ) use pi 3.14 to estimate the circumference of the circle to the nearest hundredth middle is 4in (urgent )

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28