(1/7)n - 8 is less than or equal to 97
(1/7)n is less than or equal to 105
n is less than or equal to 735
Answer:
Jessica dug 17.85 feet after 3 minutes
Step-by-step explanation:
35 × 0.17 = 5.95 (feet dug in one min.)
5.95 × 3 = 17.85 (feet dug in three mins.)
It would be 3x-12.. is that all you need?
Answer:
Step-by-step explanation:
you can start by factoring x
x(2x³-x²-18x+9)
you can group terms in parentheses strategicly
x(2x³-18x-x²+9)=x[2x(x²-9)-(x²-9)]
now we can factor x²-9
x(x²-9)(2x-1)
factor the diference of two squares x²-9=x²-3²
x(x-3)(x+3)(2x-1)
so the roots are found by using the zero product rule
x(x-3)(x+3)(2x-1)=0 will give
x=0, x-3=0 so x=3, x+3=0 so x=-3, 2x-1=0 so x=1/2
from left to right
-3, 0, 1/2, 3
