Which equation involves a prime quadratic and cannot be solved by factoring? a. x2 + 6x + 9 = 0 b. x2 − x − 6 = 0 c. x2 + 3x − 4 = 0 d. x2 + 5x − 4 = 0

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?

Acircle has a radius of 12.6cm what is the exact length of an arc formed by a central angle measuring 120

Which graph or graphs appear to show a sinusoid? < me asap !