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tino4ka555 [31]
3 years ago
12

Q10 Q2.) Find the standard form of the equation of the parabola satisfying the given conditions.

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
3 0
To  solve this problem you must apply the proccedure shown below:

 1. You have that the standard form of the equation of the parabola must satisfy the following conditions given in the exercise above:

 Focus: (-1,4) and Directrix: y=2

 2. Therefore you have:

 √(x0-(-1))²+(y0-4)²=|y0-2|
 (x0+1)²+(y0-4)²=(y0-2)²

 3. When you simplify the expression above and clear y0, you obtain:

 y0=y

 y=1/4(x²+2x+13)
 y=(x²/4)+(x/2)+(13/4)

 Therefore, the answer is: y=(x²/4)+(x/2)+(13/4)
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O wpuld say that d is correct
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A coin collector has $45 in just dimes and quarters in a piggy bank he counted all the coins and there are 240 total how many ea
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Answer:

The number of <u>dimes are 100</u> and number of <u>quarters are 140.</u>

Step-by-step explanation:

Let the number of dimes be 'd' and quarters be 'q'.

Given:

The sum of amount is $45.

The total number of coins are 240.

1 dime = $0.10

∴ 'd' dimes = \$0.10d

1 quarter = $0.25

∴ 'q' quarters = \$0.25q

Now, as per question:

d+m=240-----1\\0.1d+0.25q=45---2

Multiplying equation (1) by -0.1 and adding the result to equation (2), we get:

-0.1d-0.1q=240\times -0.1\\-0.1d-0.1q=-24\\0.1d+0.25q=45\\-----------\\0.15q=21\\q=\frac{21}{0.15}=140\\\\d=240-q=240-140=100

Therefore, the number of dimes are 100 and number of quarters are 140.

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3 years ago
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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

The exponential function with given values filled in can be solved for the unknown using logarithms.

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  ln(1/3) = -0.00011t . . . . . . take natural logs

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How to find the value of x in degrees HELP
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Step-by-step explanation:

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