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3 years ago

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which equation show how you can find the number of minutes in one year? A. 60×24×365. b. 60×60×24. C. 60×365. D. 60×60×365

1 answer:

konstantin123 [22]3 years ago

8 0

Use dimensional analysis to convert from years to minutes

1 year = (1 year)*(365 days/1 year)*(24 hrs/1 day)*(60 min/1 hr)

1 year = (1*365*24*60) minutes

1 year = (60*24*365) minutes

So the answer is choice A

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Find x for <br> 5x+5+65+65=

Phoenix [80]

5x+5+65+65=

Answer:

x=-27

Step-by-step explanation:

We want to find x right, so everything that does not have x you can move to the other side. 5x=-5-65-65. So that should be your equation so far. Now we know that when there are two negatives it is a negative and you add so -5-65=-70-65=-135. So your equation now should be: 5x=-135. Now we can divide -135 with 5 which gives us... -27! There’s your answer. Hope this was correct!

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3 years ago

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Step-by-step explanation:

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3 years ago

Read 2 more answers

A typical cup of coffee contains about 100 mg of caffeine and every hour approximately 16% ofthe amount of caffeine inthe body i

Over [174]

Answer:

a) $\frac{dC}{dt} = rC$

And for this case we can rewrite the model like this:

$\frac{dC}{C} = r dt$

If we integrate both sides we got:

$ln C = rt + k$

If we use exponentials for both sides we got:

$C = e^{rt} e^k = C_o e^{rt}$

For this case $C_o = 100 mg$ and r = -0.16

So then our model would be given by:

$C(t) = 100 e^{-0.16 t}$

Where t represent the number of hours

b) $C(5) = 100 e^{-0.16*5}= 44.9329$

Step-by-step explanation:

Part a

For this case we can assume the proportional model given by:

$\frac{dC}{dt} = rC$

And for this case we can rewrite the model like this:

$\frac{dC}{C} = r dt$

If we integrate both sides we got:

$ln C = rt + k$

If we use exponentials for both sides we got:

$C = e^{rt} e^k = C_o e^{rt}$

For this case $C_o = 100 mg$ and r = -0.16

So then our model would be given by:

$C(t) = 100 e^{-0.16 t}$

Where t represent the number of hours

Part b

For this case we can replace the value t=5 into the model and we got:

$C(5) = 100 e^{-0.16*5}= 44.9329$

7 0

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Please help me im having so much trouble

Karolina [17]

It would be B, an acute scalene. It would be B because all 3 sides are different.

5 0

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Which of the following points is in the solution set of y>-x^2+5?

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