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shepuryov [24]
2 years ago
9

A train moves a constant speed and travels 6 miles in 4 minutes. What is its speed in miles per minute?

Mathematics
1 answer:
saw5 [17]2 years ago
5 0

1.5 miles per minute

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the function f(x)= sqrt x is translated left 5 units and up 3 units to create the function g(x). what is the domain of g(x)?
Zinaida [17]

Answer:

x ≥ -5

Step-by-step explanation:

If we have a translation to left c units, we write " x + c " in the function, and

If we have a translation to right c units, we write " x - c" in the function

If we have vertical translation up b units, we "add b to the function", and

If we have vertical translation down b units, we "subtract b to the function"

The parent function is  f(x)=\sqrt{x}

Since translation left 5 units and up 3 units, we can write:

f(x)=\sqrt{x+5} + 3

The domain is affected by the square root sign and we know the number under the square root CANNOT be negative, so we can say:

x + 5 ≥ 0

x ≥ -5

This is the domain.

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Step-by-step explanation:

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Dafna1 [17]
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Need help with these 2 problems on my homework.
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