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Svetradugi [14.3K]
3 years ago
9

A diver is 15 feet below the surface of the water 10 seconds after he entered the water and 90 feet below the surface after 40 s

econds. What is the rate of change?
Mathematics
1 answer:
Monica [59]3 years ago
8 0

Answer:

Step-by-step explanation:

1.5

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I belive it is rounding
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3 years ago
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Hope researches the impact of one variable on another. She graphs the data from her research and sees that the data forms a shap
zaharov [31]

Answer:

She can determine that while there is an association between the variables, there is no correlation, and she cannot determine causation.

Step-by-step explanation:

Since there is an arch shape to her graph, we know that as one variable changes, the other changes in the same manner. This means there is an association between the variables.

However, since the graph is not linear, there is no correlation between the variables. Since there is no correlation, we cannot determine causation.

Mark me as brainiest

6 0
3 years ago
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3. The diagonal of a rectangular field is 169 m. Ifthe ratio of the length to the width is 12:5, find the: (a) (b) dimensions; p
Kazeer [188]

The dimensions of the rectangle are length 156 m and a width of 65m, and a perimeter P = 442m

<h3>How to find the dimensions of the rectangle?</h3>

For a rectangle of length L and width W, the diagonal is:

D = \sqrt{L^2 + W^2}

Here we know that the diagonal is 169m.

And the ratio of the length to the width is 12:5

This means that:

W = (5/12)*L

Replacing all that in the diagonal equation:

169 = \sqrt{((5/12)^2*L^2 + L^2} \\\\169^2 = (25/144)*L^2 + L^2 = ( 25/144 + 1)*L^2\\\\\frac{169}{\sqrt{25/144 + 1} } = L = 156

So the length is 156 meters, and the width is:

W = (5/12)*156 m = 65m

Finally, the perimeter is:

P = 2*(L + W) = 2*(156 m + 65m) = 442m

If you want to learn more about rectangles:

brainly.com/question/17297081

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8 0
2 years ago
JA manufacturer determines that the cost of making a computer component is ​$3.161616. Write the repeating decimal cost as a fra
Bad White [126]

Answer:

The repeating decimal cost

a) As a fraction = $\frac{3161616}{1000000}

b) As a mixed number = $ 3\frac{161616}{1000000}

Step-by-step explanation:

The cost of making a computer component

= $3.161616

= $ 3 + 0.161616

Looking at the repeating decimal it is in 6 decimal places, hence to convert it to a fraction,

0.161616/ 1000000 × 1000000

= 161616/1000000

Therefore, the cost of making  the  computer component =

$3 + $161616/1000000

Step 1

We convert to a fraction

$3 + $161616/1000000

We find the LCM = 1000000

($3 × 1000000)+ ($161616× 1)/1000000

3000000 + 161616/1000000

= $ (3161616/1000000)

As a Mixed number = 3\frac{161616}{1000000}

8 0
3 years ago
Read this and answer this for me Thanks &lt;3
Norma-Jean [14]

Answer:

The answer is 1st point

Step-by-step explanation:

(12x²+4x-5)-(9x²-9x+1)

= 12x²+4x-5-9x²+9x-1

= 3x²+13x-6

6 0
3 years ago
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