Find an equation for the nth term of the arithmetic sequence. -20, -16, -12, -8, ... (2 points)

an = -20 x 4(n - 1)
an = -20 + 4(n - 1)
an = -20 + 4(n + 2)
an = -20 + 4(n + 1)

Which shows one way to determine the factors of  x3  +  5x2  –  6x  –  30 by grouping? x(x2  –  5)  +  6(x2  –  5)x(x2  +  5)  –  6(x2  +  5)x2(x  –  5)  +  6(x  –  5)x2(x  +  5)  –  6(x  +  5)

Acertain population of bacteria demonstrates exponential growth doubles in size every 4 days. how long will it take the population to triple in size?

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]