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2 years ago

A radioactive substance decays according to the formula A=A0e^kt

1 answer:

4 0

Without needing fancy formulas, we can conclude that after 10 years, half of the substance will be left. So, we can make our own formula:
amount remaining = 1 / 2^(years/10)
So, after 5 years
amount remaining = 1 / 2^(5/10)
amount remaining = 1 / 2^(.5)
amount remaining = 1 / 1.414213562 
amount remaining = 0.70711 * 20 grams
amount remaining = 14.1421356237 grams

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3 0

2 years ago

3. [6x - 2y=2. (2 + 6x=y

Hunter-Best [27]

Answer:

3. [6x - 2y=2.

(2 + 6x=y

Step-by-step explanation:

4 0

3 years ago

Help Me 20 points Need Correct ASAP

trasher [3.6K]

Answer:

I also need help on this PLZ help

7 0

3 years ago

Find the cosine of ∠J.

Luden [163]

Answer:

$\cos = \frac{base}{hypotenuse} = \\ \cos(j) = \frac{ \sqrt{29} }{ \sqrt{94} } = \sqrt{ \frac{29}{94} } \\ answer = \sqrt{ \frac{29}{94} }$

7 0

2 years ago

Select the correct answer. Which function has the same graph as x + y = 11?

Zinaida [17]

The function that has the same graph as x + y = 11 is f(x) = -x + 11

<h3>Graph of functions</h3>

From the question, we are to determine the function that has the same graph as the given equation

The given equation is

x + y = 11

In the above equation, y is the dependent variable.

and

Among the given equation, f(x) is the dependent variable

Thus, we can write that

x + f(x) = 11

Isolate f(x)

f(x) = -x + 11

Hence, the function that has the same graph as x + y = 11 is f(x) = -x + 11

Learn more on Graph of functions here: brainly.com/question/20388062

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8 0

2 years ago