What is the factorization of the polynomial below? - x2 - 15x - 56

A. (X + 8)(x + 7)
B. (x+3)(x - 7)
C. -1(x+8)(x + 7)
D. (-x+3)(x-7)

C

Step-by-step explanation:

When you multiply -1(x+8)(x+7)

                                 (-x-8)(x+7)

                                  -x(x+7)-8(x+7)

step-by-step explanation:

the original amount doesn't ''re just looking for the time it takes for 1/2 of the substance to we have

(1/2) =)     take the ln   of both sides

ln (1/2)   = )   and we can write

ln(1/2) = ) lne     and lne   = 1     so we have

ln(1/2) = -.1092t     divide both sides by -.1092

t = ln(1/2)/-.1092 = about 6.347 days = about 6.3 days (rounded)

answer: i think one of the answer is $150 and $300?

step-by-step explanation: