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meriva
3 years ago
8

Chang wants to spend at least five and a half hours preparing for a test. If he studies for 40 minutes every day for a week, whi

ch of the following is true? A. Chang studied for a total of 5 hours and 50 minutes, which is enough. B. Chang studied for a total of 4 hours and 50 minutes, which is not enough. C. Chang studied for a total of 4 hours and 40 minutes, which is not enough. D. Chang studied for a total of 5 hours and 40 minutes, which is enough.
Mathematics
1 answer:
Yanka [14]3 years ago
7 0

Answer:

C

Step-by-step explanation:

40 minutes every day for a week is 40 multiplied by 7, which is 280. Dividing that by 60 is 4 remainder 40, so 4 hours and 40 minutes.

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Read 2 more answers
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omeli [17]

For the given function, the domain is D : { x ≥ 7} and the range is R: { y ≥ 9}

<h3>How to get the domain and range?</h3>

Here we have a square root, remember that the argument of the square root must be equal or larger than zero, so the domain is such that:

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If you want to learn more about domain and range:

brainly.com/question/10197594

#SPJ1

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2 years ago
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