Answer:
11
4
Step-by-step explanation:
3 hrs to travel 45 miles downstream
4 hrs to travel 28 miles upstream
speed of boat in still water= s
speed of the current= c
added up the 2 equations, we get:
Part A: David wrote 0.003 + 0.0001 instead of <span>0.03 + 0.001
Part B: T</span>he 1 should be in the thousandths place
Hope this helps, make sure to count each place from right after the decimal which is the tenths place, then hundredths, etc.
Answer:
(x - 3) is a factor of P(x)
Step-by-step explanation:
if (x - 3) is a factor of P(x) then P(3) = 0
P(3) = 2(3)³ + 5(3)² - 28(3) - 15
= 2(27) + 5(9) - 84 - 15
= 54 + 45 - 99
= 99 - 99
= 0
since P(3) = 0 then (x - 3) is a factor of P(x)
