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Archy [21]
3 years ago
13

A high school track is shaped as a rectangle with a half circle on either side.

Mathematics
2 answers:
nika2105 [10]3 years ago
8 0

Answer:

745.5 yd

Step-by-step explanation: I took the quiz and got it right plz trust me

Ludmilka [50]3 years ago
4 0

Jasmine will  run 745.5 yards

Step-by-step explanation:

Jasmine runs along the track. So she will be covering the  the circumference of the semi circle on the one side followed by the length followed by the  circumference of the semi circle on the other side finally going through the other length

So In 1 lap Jasmine covers

= circumference of the semicircle  + length of the rectangle + circumference of the semicircle  + length of the rectangle

= 2(circumference of the semicircle  + length of the rectangle )

= circumference of the circle  + 2(length of the rectangle)

Now lets find the circumference of the circle

circumference of the circle = 2 \pi r

We have diameter of the circle  =  25 yards

Then radius  = \frac{25}{2}=  12.5 yards

Now circumference of the circle = 2 \pi (12.5) = 2 \times 3.14 \times 12.5 =  78.5 yards

In One lap Jasmine will be covering = 78.5 +2(85)=  78.5  + 170 = 248.5 yards

In 3 laps  = 3 \times 248.5 = 745.5 yards

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Sedbober [7]

The given exponential function can be used to determine the

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Response:

1. 200

2. 0.05

3. Please find attached the graph of the exponential function and the table

\begin{array}{|c|c|c}x&f(x)\\0&200 & y-intercept\\1&210\\3&231.525\\4&243.1\\5&255.26\end{array}

4. Range; [0, ∞)

Domain: [200, ∞)

5. 346 fishes (approximate value)

<h3>How is the population of the fish obtained from the exponential function?</h3>

The given function is f(x) = 200·(1.05)ˣ

1. The initial population is given by the value of the function when x = 0,

which is given as follows;

At x = 0, f(0) = 200·(1.05)⁰ = 200

  • The initial population of the fish is <u>200</u>

2. The rate of growth of the fish from the exponential function is given as follows;

The growth factor = 1.05

  • The growth rate =<u> 0.05</u>

3. Please find attached the graph of the exponential function created

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The asymptote of the exponential function is the line, <u>y = 0</u>

The table of values is presented as follows;

\begin{array}{|c|c|c}x&f(x)\\0&200 & y-intercept\\1&210\\3&231.525\\4&243.1\\5&255.26\end{array}

4. The domain is the possible x-values which is; 0 ≤ x < ∞

The range is the possible y-values which is; 200 ≤ f(x) < ∞

Which gives;

  • Domain; [0, ∞)
  • Range: [200, ∞)

5. The population of the fish after 11 years is f(11) = 200·(1.05)¹¹

f(11) = 200 × (1.05)¹¹ ≈ 342

  • The population of the fish after 11 years is <u>346 (fishes)</u>

Learn more about exponential function here:

brainly.com/question/15662160

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Answer:

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one of the legs measure 4x-6

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9x = 96 + 12

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x = 108/9 = 12 units

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