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shepuryov [24]
3 years ago
6

Please answer this !!

Mathematics
1 answer:
Nataly [62]3 years ago
5 0
C(3) = -0.09(3)² + 3.5(3) + 8
        = -0.09 * 9 + 10.5 + 8
        = -0.81 + 18.5
        = 17.69 parts per million
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Novosadov [1.4K]
2.60pounds :)
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3 years ago
What is the equation of a circle whose center is begin ordered pair negative 4 comma 6 end ordered pair and whose radius is 9 cm
solong [7]

Answer:

(x+4)^2+(y-6)^2=81

Step-by-step explanation:

We want to find equation of a circle with center (-4,6) and radius 9cm.

The equation of a circle with center (h,k) and radius r units is given by;

(x-h)^2+(y-k)^2=r^2

We substitute the radius and the center to obtain;

(x+4)^2+(y-6)^2=9^2

The required equation is:

(x+4)^2+(y-6)^2=81

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3 years ago
A jar contains 100 marbles. There are 7 blue marbles, 4 green marbles,
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Answer:

43%

Step-by-step explanation:

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7 0
2 years ago
Krystal was given $3000 when she turned 2 years old. Her parents
amid [387]
The expression for finding the amount of money earned on interest is

P(1+\frac{r}{n})^{nt}

where
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t = time (in years)

In this case:
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t = 16       (because she got the money when she was 2 and we are calculating it                       for when she turns 18, 16 years later)

So, you plug it in:

P(1+\frac{r}{n})^{nt}\\3000(1+\frac{0.02}{1})^{(1)(16)}\\3000(1+0.02)^{16}

So, the answer is (1) <span>3000(1 + 0.02)^16</span>
7 0
3 years ago
2. On a blueprint for a new building, 2 inches = 8 feet. The height of the building on the
dimulka [17.4K]
<h2>Answer:</h2><h2>The actual height of the building = 36 feet.</h2>

Step-by-step explanation:

By blue print conversion,

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4 0
3 years ago
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