I tried. Help ASAP please!

Mathematics

1 answer:

Umnica [9.8K]3 years ago

7 0

Fam it’s D because I said so

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What is the unit rate of -4y = 18x

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4 years ago

Carlos has taken an initial dose of a prescription medication.

Marat540 [252]

Answer:

3.48 hours

Step-by-step explanation:

The equation is:

$M(t)=20 e^{-0.86t}$

Where

M(t) is the amount of medication remaining in mg

t is the time it takes, in hours

The questions asks HOW LONG it will take to make the remaining medication to 1 milligrams (1 mg)??

We have to substitute M(t) with "1" and find the corresponding value of "t". We will use natural log to solve this. Shown below:

$M(t)=20e^{-0.86t}\\1=20e^{-0.86t}\\0.05=e^{-0.86t}\\Ln(0.05)=Ln(e^{-0.86t})\\Ln(0.05)=(-0.86t)Ln(e)\\t=\frac{Ln(0.05)}{-0.86}\\t=3.48$

<u>Note: </u> Ln(e) = 1

This means, the amount of time it will take is about 3.48 hours

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3 years ago

3Misty wants to save money to purchase a new bicycle that cost $279. She opens a savings account and deposits $7 per week. Based

Annette [7]

Answer:

it will take at least 10 weeks of saving to buy the bike

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3 years ago

Simplify this expression using the distributive property

jok3333 [9.3K]

Answer:

When you use the distributive property, you multiply the two numbers together, just like simplifying any product. You will also see another example where the expression in parentheses is subtraction, rather than addition. You will need to be careful to change the sign of your product.

Step-by-step explanation:

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3 years ago

Events AA and BB are independent. P(A\ \mathrm{and}\ B)=0.25P(A and B)=0.25 Enter possible probabilities for events AA and BB.

xenn [34]

Answer:0.5, 0.5

Step-by-step explanation:

Given

$P(A\cap B)=0.25$