EASY QUESTION #2 Ken has read 35 pages of a 120-page book, 53 pages of a 175-page book, and 37 pages of a 155-page book. Part B:
1 answer:
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The cattle train
speed - 36.5 km/h
time - x h
the passenger train
speed - 29.2 km/h
time - (2.4+x) h
The cattle train caught up to the passenger train so the distance they travelled is the same.
Distance is speed times time.
The passenger train travelled for 12 hours before the cattle train caught up.
speed - 36.5 km/h
time - x h
the passenger train
speed - 29.2 km/h
time - (2.4+x) h
The cattle train caught up to the passenger train so the distance they travelled is the same.
Distance is speed times time.
The passenger train travelled for 12 hours before the cattle train caught up.
Answer:
Solution
roots: ()
domain X∈3
vertical intercept (0,0)
x = {0, -1.732050808, 1.732050808}
Please, find attached images equation graphs
Step-by-step explanation:
Simplifying
2x5 + -5x3 + -3x = 0
Reorder the terms:
-3x + -5x3 + 2x5 = 0
Solving
-3x + -5x3 + 2x5 = 0
Solving for variable 'x'.
Factor out the Greatest Common Factor (GCF), 'x'.
x(-3 + -5x2 + 2x4) = 0
Factor a trinomial.
x((-1 + -2x2)(3 + -1x2)) = 0
Subproblem 1
Set the factor 'x' equal to zero and attempt to solve:
Simplifying
x = 0
Solving
x = 0
Move all terms containing x to the left, all other terms to the right.
Simplifying
x = 0
Subproblem 2
Set the factor '(-1 + -2x2)' equal to zero and attempt to solve:
Simplifying
-1 + -2x2 = 0
Solving
-1 + -2x2 = 0
Move all terms containing x to the left, all other terms to the right.
Add '1' to each side of the equation.
-1 + 1 + -2x2 = 0 + 1
Combine like terms: -1 + 1 = 0
0 + -2x2 = 0 + 1
-2x2 = 0 + 1
Combine like terms: 0 + 1 = 1
-2x2 = 1
Divide each side by '-2'.
x2 = -0.5
Simplifying
x2 = -0.5
The solution to this equation could not be determined.
This subproblem is being ignored because a solution could not be determined.
Subproblem 3
Set the factor '(3 + -1x2)' equal to zero and attempt to solve:
Simplifying
3 + -1x2 = 0
Solving
3 + -1x2 = 0
Move all terms containing x to the left, all other terms to the right.
Add '-3' to each side of the equation.
3 + -3 + -1x2 = 0 + -3
Combine like terms: 3 + -3 = 0
0 + -1x2 = 0 + -3
-1x2 = 0 + -3
Combine like terms: 0 + -3 = -3
-1x2 = -3
Divide each side by '-1'.
x2 = 3
Simplifying
x2 = 3
Take the square root of each side:
x = {-1.732050808, 1.732050808}
Solution
x = {0, -1.732050808, 1.732050808}
