Put the following in order from least to greatest and explain how you found your 2.91 , 8/9 , 31.21 , 3/4 Explain how you found the answer

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

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

Evaluate 3(a + b + c)squared for a = 2, b = 3, and c = 4. a. 54 b. 243 c.729 add solution .