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Hitman42 [59]
3 years ago
15

A youth ice hockey game has 3 periods that are each 20 minutes of Colin plays 12 minutes each. Which ratio shows Collins playing

time compared to the total number of minutes of possible playing time
Mathematics
1 answer:
Sergeu [11.5K]3 years ago
7 0
3 periods....20 minutes each.....3 * 20 = 60 total minutes playing time
colin plays 12 minutes each period...12 * 3 = 36 minutes 

Collins playing time to total playing time = 36/60 reduces to 9/15 or 9:15 or 9 to 15 <===
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A ship at position (1, 0) on a nautical chart (with north in the positive y direction) sights a rock at position (7, 5). What an
Romashka-Z-Leto [24]

Answer:

0.69473828 radians east of north.

Step-by-step explanation:

Interpreting the information given on a Cartesian plane, the position of the ship will be (1,0) and that of the rock will be (7,5). Connecting the point (1,0) and (7,5) with a line and dropping a perpendicular line from point (7,5) to the x-axis to intersect the x-axis at (7,0), will form a right-triangle with base length 6 units and a height of 5 units.

<u>Finding the base length from points (1,0) and (7,0)</u>

d=√(x₂-x₁)²+(y₂-y₁)²

d=√(7-1)²

d= √6²

d=6 units

<u>Finding the height from points (7,5) and (7,0)</u>

d=√(x₂-x₁)²+(y₂-y₁)²

d=√(7-7)² + (0-5)²

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d=√25

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So you now have a right triangle with base length 6 units and height 5 units.

To get the bearing of rock from ship position you apply the formula for tangent of an angle

Tan Ф = length of opposite side/length of adjustment side

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Tan Ф =0.83333333333

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Zoologists are studying two newly discovered species of insects in a previously unexplored section of rain forest. They estimate
salantis [7]
The population Pa of insect A after t years is given by the equation 
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We equate the above expressions to find the number of years t it will take the two populations to be equal: 
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These are the equations that can be used to determine how long it will be before the populations of the two species are equal.

We can now solve for t:
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     t = log (2.1/1.3) / log (0.962/0.954)
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Answer: in statistics deviation is the difference between the value of one number in a series of numbers and the average value of all numbers in the series (  i hope this helped)

Step-by-step explanation:

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