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Katena32 [7]
3 years ago
10

PLZZZ HELP ME WITH THIS MATH

Mathematics
2 answers:
marissa [1.9K]3 years ago
6 0

Answer: -2/3

Step-by-step explanation: Rise/run

schepotkina [342]3 years ago
3 0
Use the rise run method and you get -2/3
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4 years ago
A driver is 15 feet below the surface of the water 10 seconds after he entered the water and 90 feet below the surface after 40
spin [16.1K]

Answer:

\frac{-75ft}{30sec} or simplified would be \frac{-2.5ft}{sec}

Step-by-step explanation:

In order to calculate the rate of change, we must subtract his end position and end time by the starting position and starting time. We are using the -15 feet since it is below the surface area as the starting position and the 10 seconds as the starting time. We make each of these into a fraction and subtract like so...

\frac{-90ft - (-15ft)}{40sec - 10sec} = rate of change

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Therefore, we can see that the rate of change of the diver is \frac{-75ft}{30sec} or simplified would be \frac{-2.5ft}{sec}

6 0
3 years ago
a circle with circumference 20 has an arc with a 72 degrees central angle. what's the length of the arc
Ugo [173]

Answer:

4 units.

Step-by-step explanation:

Let's use a ratio

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