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balandron [24]
3 years ago
15

Mark charged a battery. Each minute, the percentage of the battery's capacity that was charged increased by 2 . 5 2.52, point, 5

percent. After 1 7 1717 minutes of charging, the battery was 6 1 . 5 61.561, point, 5 percent full. How full was the battery when the charging began?
Mathematics
1 answer:
Lemur [1.5K]3 years ago
7 0

Answer:

I think the answer is the battery was 19 percent full when the charging began.

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The function shown below was created to track the different intervals of speed that an automobile travels over a period of 28 se
Ksenya-84 [330]

Answer:

1. The car is slowing down at a rate of 2.5mph/s

2. The greatest acceleration is 10 mph/s.

3. In the interval 4s to 16s the speed remains constant and has magnitude 25 mph.

Step-by-step explanation:

1. The deceleration of the car is from 16 seconds to 24 seconds is the slope m of the graph from 16 to 24:

m=\dfrac{\Delta speed }{\Delta time } = \dfrac{5-25}{24-16} =-2.5mph/s

the negative sign indicates that it is deceleration.

2. The automobile experiences the greatest change in speed when the slope is greatest because that is when acceleration/deceleration is greatest.

From the graph we see that the greatest slope of the graph is between 28 and 24 seconds. The acceleration the interval is the slope m:

m= \dfrac{45-5}{28-24}= 10mph/s

3. The automobile experiences no acceleration in the interval 4 s to 16 s—that's the graph is flat.

The speed of the automobile in that interval, as we see from the graph, is 25 mph.

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3 years ago
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Answer:

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Step-by-step explanation:

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Answer:

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Answer:

Step-by-step explanation:

Simplified expression:

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Hope this helps!

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