Question 4 unsaved factor out the common expression: 5y(2x+7) + 4(2x+7) question 4 options: (2x + 7) (5y + 4) (5y + 7)(2x + 4) (5y + 4)(2x + 7)

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

For each sentence below, find the value of x that makes each sentence true. (515) 5 = 25* x= (813)2 = 4* x=

Tell whether the two rates form a proportion