Select both the 2nd and 4th options!
Solving the system of equations, it is found that a viable time that the trains are side by side is given by:
B. 15 sec
<h3>What is a system of equations?</h3>
A system of equations is when two or more variables are related, and equations are built to find the values of each variable.
In this problem, the equations are:


They will be side by side when:


It's solution is a quadratic function with coefficients a = 14, b = -130, c = -1200, hence:



Time is a non-negative measure, hence option B is correct.
More can be learned about a system of equations at brainly.com/question/24342899
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Answer: 7.14
I hope this helped!
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- Zack Slocum
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Answer:
none
Step-by-step explanation:
38×2=76
43×2=86
45×2=90
The reflection over the x-axis is given by the transformation:
f₁(x) = - f(x)
Therefore, the first step is:
f₁(x) = - log(4x)
Stretching by a factor n along the y-axis is given by the transformation:
f₂(x) = n · f₁(x)
Therefore we get:
f₂(x) = -3 · log(4x)
Shifting a function down of a quantity n is given by:
f₃(x) = f₂(x) - n
Therefore:
f₃(x) = -3·log(4x) - 2
Hence, the correct answer is C) g(x) = <span>-3·log(4x) - 2</span>