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AURORKA [14]
4 years ago
5

Write a real world situation for the function f(x) = 3(1.06x) + 2. Be sure to identify all key features of the function as what

they represent in your situation.
Please help!!!
Mathematics
1 answer:
pav-90 [236]4 years ago
4 0

Answer:

Putting money in a bank and earning interest

Step-by-step explanation:

This problem can be used in real life to describe when you put money in a bank, in this case, it could be two dollars, and leave it there for x amount of years, then taking it out after an amount of years and checking what you have. Since this is a linear equation, your money doesn't go up exponentially. It'll keep going up the same rate for the whole time until you decide to take it out. Here's an example of what it'll look like, if it helps:

  • Before interest: You put in $2
  • First year: You have $5.18 in the bank
  • Second year: $8.36
  • Third year: $11.54

Your money keeps going up. Hope this helps!

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What are the solutions to the equation 2x^2 + 9x =5
Maksim231197 [3]

Answer:

\displaystyle -5 \ and \ \frac{1}{2}

Step-by-step explanation:

2x^2 + 9x =5

we have to move 5 in the other side with a different sign, to get a 2 grade ecuation

2x^2 + 9x -5= 0

now we know

a=2

b=9

c=-5

we have to find delta

\boxed{\Delta=b^2-4ac} \\\\ \Delta=9^2-4\cdot2\cdot(-5)\\ \Delta=81+40 \\ \Delta=121

and now we have to use the formula to find the root square

\displaystyle \boxed{ X_{1,2}=\frac{-b\pm\sqrt{\Delta} }{2a} }

\displaystyle X_1=\frac{-b-\sqrt{\Delta} }{2a} =\frac{-9-11}{2\cdot2}=\frac{-20}{4}  =-5

\displaystyle X_2=\frac{-b+\sqrt{\Delta} }{2a} =\frac{-9+\sqrt{121} }{2\cdot4} =\frac{-9+11}{4} =\frac{2}{4} =\frac{1}{2}

8 0
3 years ago
Read 2 more answers
What are independent and dependent variables?
Nonamiya [84]
I'm pretty sure this doesn't belong in mathematics but this belongs to science. Anyways.. an independent variable is the only variable that is being changed. The dependent variable is what you find out- in other words it is the outcome.

8 0
3 years ago
At​ noon, a tank contained 5 cm of water. After several​ hours, it contained 3 cm of water. What is the percent decrease of wate
Oksanka [162]

Answer:

40%

Step-by-step explanation:

2cm loss from 5cm.

2 fifths of the water has gone.

2/5 given as 100ths is is calculated by multiplying both top and bottom by 20

2x20 =40

5x20= 100

40/100

or 40%

7 0
3 years ago
Complete the statement. Round to the nearest hundredth if necessary
Bond [772]

Answer:

45.9

Step-by-step explanation:

Remember that the hundredths place value is the second number after the decimal point and to round that number has to be greater than five in order to round up.

1m=3.28084

3.28084\times14=45.93176

Hundredths place value = 3

Round:

3

=45.9

Hope this helps.

8 0
3 years ago
Solve for x.<br><br> x3=−1000<br><br> Enter your answer in the box.<br> x =
levacccp [35]
X³ = -1000

x = ∛-1000

x = -10

In short, Your Answer would be: -10

Hope this helps!
7 0
3 years ago
Read 2 more answers
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