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3 years ago

[Giving Brainleist] What is 4x+2?

Mathematics

2 answers:

alina1380 [7]3 years ago

5 0

Answer:

It is 4x+2

Step-by-step explanation:

erik [133]3 years ago

5 0

Answer:

4x + 2 = 0

4x = -2

x = -1/2

if you need it simplified it already is

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What is 2x2? thank you.

diamong [38]

The answer is uhmm let me see 2 4 6 8 10 12 14 16 18 20. Oh the answer is 4

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3 years ago

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If a1=10 and an=an-1+4 then find the value of a5

tamaranim1 [39]

Answer:

Step-by-step explanation:

Each term is the previous with 4 added to it.

a1 = 10, a2 = 14, a3 = 18, a4 = 22, a5 = 26

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3 years ago

Ashley use 1/5 cup of winegar in her salad dressing recipe. How much

Papessa [141]

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3 years ago

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Leviafan [203]

Rise over run.
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3 years ago

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A population of bacteria is initially 6000. After three hours the population is 3000. If this rate of decay continues, find the

serious [3.7K]

Answer:

The equation is $A=6000e^{-0.23t}$ at a rate of -23%.

Step-by-step explanation:

Decay can be represented by the equation $A=A_0e^{rt}$ . We can find the rate at which it decays by using t=3 hours and A=3000. This means $A_0=6000$ in this context.

$A=A_0e^{rt}\\3000=6000e^{r(3)}$

$0.5=e^{(24.5)r}$

After substituting, we divided by 6000 to each side to get 0.5 on the left. Now to solve for r, we will take the natural log of both sides and use log rules to isolate r.

$ln 0.5=ln e^{(3)r}\\ln 0.5=3r (ln e)\\\frac{ln0.5}{3} =r$

We know $lne=1$ so we were able to cancel it out and divide both sides by 3.

We solve with a calculator $\frac{ln0.5}{3} =r\\-0.23=r$

We change -0.23 into a percent by multiplying by 100 to get -23% as the rate.

The equation is $A=6000e^{-0.23t}$

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3 years ago