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wolverine [178]
3 years ago
7

IF CORRECT, I WILL MARK AS BRAINLIEST

Mathematics
1 answer:
Rainbow [258]3 years ago
8 0

a)

P(t) = 19100. e^{0.06t}

b) P(8) =30866

Use formula:

P(t) = P. e^{rt}

a)

Here, P = 19100

r = 6% = 0.06

P(t) = 19100. e^{0.06t}

b) t = 2008 - 2000 = 8

P(8) = 19100. e^{0.06\times 8}

P(8) = 19100. e^{0.48}

P(8) = 19100\times 1.616\\\\P(8) = 30,865.6\\\\P(8) \approx 30,866

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Solve x2 + 2x = 4 for x by completing the square. x equals plus or minus square root of 5 plus 1 x equals plus or minus square r
steposvetlana [31]

Answer:

x equals plus or minus square root of 5 minus 1

Step-by-step explanation:

we have

x^{2} +2x=4

Divide by 2 the coefficient of the x-term

2/2=1

squared the number

1^2=1

Adds both sides

x^{2} +2x+1=4+1

x^{2} +2x+1=5

Rewrite as perfect squares

(x+1)^{2}=5

take the square root both sides

x+1=(+/-)\sqrt{5}

x=(+/-)\sqrt{5}-1

therefore

x equals plus or minus square root of 5 minus 1

4 0
3 years ago
Pleaseeee help is for today
svetlana [45]

Answer:  <em>a + ( 2a - 7 ) = 41</em>

Explanation:

Let be "a" the Nicci's age and "s" the Nicci's sister.

You know that the sum of Nicci's age and her sister's age is 41. This can be represented with the following equation:

<em>a + 8 = 41</em>

And knowing that Nicci's sister is 7 years less than twice Nicci's age, you can write another equation to represent this:

<em>8 = 2a - 7</em>

Now, substitute the second equation into the first equation in order to find the equation that represents this relationship.

Then, this is:

<em>a + ( 2a - 7 ) = 41</em>

<em></em>

<em>Hope it helps...</em>

7 0
3 years ago
Write the following equation in standard form.<br><br> y=-3/7x-3
mylen [45]

y =  -  \frac{3}{7}x - 3 \\

Multiply sides by 7

7y =  - 3x - 21

Plus sides 3x

3x + 7y = 3x - 3x - 21

3x + 7y =  - 21

_________________________________

And we're done.....♥️♥️♥️♥️♥️

5 0
3 years ago
A tabular method that can be used to summarize the data on two variables simultaneously is called.
ira [324]

The tabular method is called: cross-tabulation.

<h3>What is Cross-Tabulation?</h3>
  • Cross-tabulation, which is also called contingency table or shorten as cross-tab, can be described as a tool in statistics used in analyzing categorical data that involves mutually exclusive values.
  • Cross-tabulation is used in analyzing the relationship within a data having two variables, where such relationship are not evident enough.

Therefore, the tabular method is called: cross-tabulation.

Learn more about cross-tabulation on:

brainly.com/question/13298479

8 0
2 years ago
4a-|3b+2c|<br><br>solving equations involving absolute value please help
KengaRu [80]
So first 3+2=5 then 5×4=20 so your answer is 20
8 0
3 years ago
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