3 years ago

The probability that one bulb is red and one is yellow is

Mathematics

1 answer:

Paladinen [302]3 years ago

6 0

There are infinite possible answers for this. Provide more details or acceptable assumptions.

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Using Newton's Law of Cooling. You are a medical examiner called to an abandoned house in which a dead body has been discovered.

Artyom0805 [142]

A) The differential equation comes from the fact that the rate of temperature change is proportional to the difference in temperatures.
$\frac{dT}{dt} = \alpha(T -52)$

B) Find general solution by separating variables and integrating $\int\frac{dT}{T-52} = \alpha \int dt \\ ln (T-52) = \alpha t + C \\ T = C e^{\alpha t} +52$ :

C) Initial condition is t=0, T = 87
$87 = C +52 \\ C = 35$

D) Total time elapsed is 10 minutes, new temperature is 84
$84 = 35 e^{10\alpha} +52$
solve for alpha
$e^{10\alpha} =\frac{32}{35} \\ \alpha = \frac{ln(32/35)}{10} \\ \alpha = -.00896$

E) Temperature function is:
$T = 35 e^{-.00896 t} +52$
solving for t
$t = \frac{ln (\frac{T-52}{35})}{-.00896}$
Plug in T = 98.6
$t = -31.95$

This is approximately 32 minutes before he arrived or about 1:20 AM

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2 years ago

A Mexican restaurant received 60 takeout orders. The manager found that 60% of the orders were for tacos and 25% of the order be

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Some group insurance plans cover ordinary doctor visits and dental work. true or false

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True, but not many. Insurance companies typically have a cap off so the client doesn't go in let's say every week for a check up to see if they grew an inch. This is form personal experience in reading into the fine print.

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Joseph is creating a recipe and will use 1/4 cup salt and 2 cups of pumpkin seeds. write the ratio of the amount salt to pumpkin

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1/4 : 2 or 1/8 : 1. That is how I would have done it. I hope this helps you.

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