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Bezzdna [24]
3 years ago
5

Y=.04x^2+8.3x+4.3. How would I solve this?

Mathematics
1 answer:
tiny-mole [99]3 years ago
6 0
It helps if you use the website math way, you punch in your equations and it gives you the answer instantly 
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The number 0.8 can be written as 8 over 10, so it is an irrational number, true or false?!?!
ira [324]
For a number to be rational by definition, a fractional representation of the number must exist.
So N = n/m is rational if n and m are integers.
Since it's given in fractional form it's rational by definition.
Hence false.
4 0
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Mrs.johnson is working on math with a group of students. she has a total of 15 students. 9 of them are girls. what is the ratio
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6

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2 years ago
You need to sell 250 candy bars at $2 each. If you meet your goal, the total amount of money you will have is measured in the __
ollegr [7]
Based on the given details you have given, the total amount of money that you will have will be measured in dollars ($). Since the given value is also in dollars which is $2, therefore, the total amount of money you will have is also in dollars which is 250 x $2 is $500 in total. Hope this answers the question. 
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3 years ago
Center -c (3,-2), radius 4. ​
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6 0
3 years ago
A person invests 10000 dollars in a bank. The bank pays 4.5% interest compounded
Greeley [361]

The person would have to leave the money in the bank for 7.8 years for it to reach 13,500 dollars.

Step-by-step explanation:

Step 1; First we must calculate how much interest is generated for a single year. The annual interest rate is 4.5% i.e. 4.5% of 10,000 dollars which equals 0.045 × 10,000 = 450 dollars a year. As the years pass, more and more will be put into the account due to interest.

Step 2; For there to be 13,500 dollars in the bank account we need to calculate how much money is added due to interest.

The money needed to be added through interest = 13,500 - 10,000 = 3,500 dollars.

So we need to determine how long it will take for the bank to add 3,500 dollars by adding 450 dollars a year.

The number of years to reach 13,500 dollars = \frac{3,500}{450} = 7.777 years. By rounding this value to the nearest tenth, we get 7.8 years.

7 0
2 years ago
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