I can’t see good this image
Answer:
Remainder is 691.
Step-by-step explanation:
Given function is 
.
Now we need to find remainder if we divide given function by (x-3)
(x-3) means plug x=3 into to find remainder.
Hence remainder is 691.
ZERO
as it is eventually multiplied by 0
Answer:
30 mph
Step-by-step explanation:
time = distance/speed
If x represents Jane's speed along the summit then her total exploration time is ...
12/x + 40/(x -5) = 2 . . . . . hours
Multiplying by (x)(x -5), we get ...
12(x -5) +40(x) = 2(x)(x -5)
Dividing by 2 and subtracting the left side gives ...
x^2 -31x +30 = 0
(x -30)(x -1) = 0 . . . . . factor
Solutions are x = 30 and x = 1, values of x that make the factors zero. A speed of 1 mph makes no sense in this problem, so ...
Jane's speed along the summit was 30 mph.
