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Andreas93 [3]
3 years ago
13

Convert the angle θ = 3 π 5 θ= 5 3π ​ theta, equals, start fraction, 3, pi, divided by, 5, end fraction radians to degrees.

Mathematics
2 answers:
Igoryamba3 years ago
5 0

Answer: 3pi/5 and 5/3pi?

Step-by-step explanation:

bija089 [108]3 years ago
3 0

Answer:

Step-by-step explanation:

3pi/5 * 180/pi

3/5 * 180/1

3/1 * 36

3*36

108 degrees

5/3pi * pi/180

5/3 * 1/180

1/3 * 1/36

1/108

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Some types of algae have the potential to cause damage to river ecosystems. Suppose the accompanying data on algae colony densit
kondor19780726 [428]

Answer:

The equation of the regression line is:

y~=~234.56158 ~-~ 2.95835 \cdot x

Step-by-step explanation:

The Least Squares Regression Line is the line that makes the vertical distance from the data points to the regression line as small as possible. It’s called a “least squares” because the best line of fit is one that minimizes the variance.

We have the following data:

\begin{array}{c|ccccccccc}X&50&55&50&79&44&37&70&45&49\\Y&152&48&22&35&43&171&13&185&25\end{array}

To find the line of best fit for the points:

Step 1: Find X\cdot X and X\cdot Y as it was done in the table

Step 2: Find the sum of every column:

\sum{X} = 479 ~,~ \sum{Y} = 694 ~,~ \sum{X \cdot Y} = 32784 ~,~ \sum{X^2} = 26897

Step 3: Use the following equations to find a and b:

\begin{aligned}        a &= \frac{\sum{Y} \cdot \sum{X^2} - \sum{X} \cdot \sum{XY} }{n \cdot \sum{X^2} - \left(\sum{X}\right)^2} =             \frac{ 694 \cdot 26897 - 479 \cdot 32784}{ 9 \cdot 26897 - 479^2} \approx 234.56158 \\ \\b &= \frac{ n \cdot \sum{XY} - \sum{X} \cdot \sum{Y}}{n \cdot \sum{X^2} - \left(\sum{X}\right)^2}        = \frac{ 9 \cdot 32784 - 479 \cdot 694 }{ 9 \cdot 26897 - \left( 479 \right)^2} \approx -2.95835\end{aligned}

Step 4: Assemble the equation of a line

\begin{aligned} y~&=~a ~+~ b \cdot x \\y~=~234.56158 ~-~ 2.95835\cdot x\end{aligned}

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5 0
4 years ago
Could someone please help with this question? I have solved i.
nikitadnepr [17]

Answer:

5.5

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if you solve it, it'll look like

y = 60/11

which is approximately 5.5

Answered by GAUTHMATH

8 0
3 years ago
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garri49 [273]

Answer: The boats are 44.82 miles from each other.

Step-by-step explanation:

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To determine h, we would apply Pythagoras theorem which is expressed as

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myrzilka [38]

Answer:

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Step-by-step explanation:

hope this will help you

4 0
3 years ago
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