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3 years ago

Please Hurry!!! What is the domain of f(x) = ?

Mathematics

2 answers:

Evgen [1.6K]3 years ago

3 0

Download an app called photomath
it will help you

Citrus2011 [14]3 years ago

3 0

Answer is (-∞. ∞)

So it is A. all real numbers

Hope it helps

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Plutonium-240 decays according to the function L where o

PIT_PIT [208]

Answer:

$\boxed{\textbf{1700 yr}}$

Step-by-step explanation:

$-\dfrac{\text{d}L}{\text{d}t} = kL\\\\\dfrac{dL}{L}=-kdt\\\\\ln L = -kt + C\\\text{At t = 0, L = L$_{0}$, so C = $\ln L_{0}$}\\\ln L = -kt + \ln L_{0}\\\ln L_{0} - \ln L = kt\\\\\ln \dfrac{L_{0}}{L} =kt$

Data:

L₀ = 24 g

L = 20 g

k = 0.000 11 yr⁻¹

Calculation:

$\ln \dfrac{24}{20} =0.000 11t\\\\\ln 1.2 = 0.000 11t\\\\0.1823 = 0.000 11t\\\\t = \dfrac{0.1823}{0.000 11} = \textbf{1700 yr}\\\\\text{It will take } \boxed{\textbf{1700 yr}}\text{ for the polonium to decay to 20 g}$

8 0

3 years ago

Ryleigh receives her pay monthly. Her deductions include $112 in Federal Income Tax, State Tax of 3.5% of gross, City Tax of 2.5

vodka [1.7K]

9514 1404 393

Answer:

$6,106.87

Step-by-step explanation:

The total of percentage deductions is ...

state tax + city tax + social security + medicare

= 3.5% +2.5% +6.2% +1.45% = 13.65%

Then Ryleigh's take-home pay is ...

gross(1 -13.65%) -112 = 5161.28

gross = (5161.28 +112)/0.8635 = 6106.87

Ryleigh's monthly gross is $6,106.87.

8 0

3 years ago

Read 2 more answers

HELP. WILL MAKE BRAINLIEST Make a true congruence statement about the following triangles:

nikdorinn [45]

How will I answer that, the image isn't showing luv

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2 years ago

Someone just help me please questions 7 and 9 ASAP

Paraphin [41]

Answer:

this picture on my end its a little blury

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4 years ago

If the battery costs $75 and has a life of 300 charge-discharge cycles, what is the cost of the energy in dollars per kilowatt h

kumpel [21]

Answer:

I'm sorry but no idea

Step-by-step explanation:

No idea

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3 years ago