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lesya [120]
3 years ago
13

I think it's B need assurance

Mathematics
1 answer:
Stella [2.4K]3 years ago
6 0

Answer:

B

Step-by-step explanation:

V = (4 * pi /3) * (38 + 0.16t)^3

t = 208 seconds.

V = (12.56/3)  * (38 + 0.16 * 280)^3

V = 4.186 * ( 38 + 44.8)^3

V = 4.286 * (82.8)^3

V = 4.286 * 567663

V = 2433005 which is close enough. The precise answer will be obtained by using a better value for pi. Anyway that's the only answer that gives  about 2.5 million so B is correct.

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Aron charges an initial service fee of 10$ plus 15$ per hour , what is X?
Marysya12 [62]

Answer:

The linear function becomes:

y = 15x + 10

Here, 'x' is the number of hours, b=10 is the initial service fee i.e. $10, 15 is slope or rate of change, and 'y' is the cost.

Step-by-step explanation:

We know that the slope-intercept of a linear function is

y = mx+b

where m is the slope and b is the y-intercept

Note: Slope is also termed as the 'rate of change'.

Given that Aron charges an initial service fee of 10$.

Thus, the y-intercept = b = 10

As the rate of change = 15$ per hour

so the slope = m = 15

Therefore, the linear function becomes:

y = mx+b

y = 15x + 10

Here, 'x' is the number of hours, b=10 is the initial service fee i.e. $10, 15 is slope or rate of change, and 'y' is the cost.

For example, in one hour i.e. x = 1, the cost 'y' will be:

y = 15x + 10

y = 15(1) + 10

y = 25 + 10

y = $25

Therefore, in one hour (x=1), the cost will be: y = $25

7 0
3 years ago
Pls help me its due sooon
stira [4]

Answer:

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Step-by-step explanation:

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5 0
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What is 25% of 40? Show Work please
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25% = 1/4

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