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Tresset [83]
3 years ago
10

In 30 minutes a shark can swim 4000 feet. About how fast in miles per hour does the shark swim?

Mathematics
2 answers:
faltersainse [42]3 years ago
5 0

Answer:

8000

Step-by-step explanation:

GalinKa [24]3 years ago
4 0

Answer:1.515152

Step-by-step explanation:

1000/30 = 133.3 per min

133.3x60

=8000ft to miles

=1.515152 mph

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zhenek [66]
The answer is 7/1 or just 7
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Consider a civilization broadcasting a signal with a power of 2.0×104 watts. The Arecibo radio telescope, which is about 300 met
Vitek1552 [10]

For light: Inverse Square Law 

<span>
The signal is weaken by the inverse square of the difference of distances this means that one over the square of the difference. </span>

<span>
</span>

Therefore, 70000LY / 141 LY =496.45 and that squared =246462.602 times less signal, or 1/246462.602.


 2 For a circular telescope like the Arecibo radio telescope that equals Pi times the radius squared. Sensitivity of the telescope depends on its area.<span>
The new telescope needs 246462.60 times that area to have enough sensitivity </span>

<span>
<span>(150 x 150 x Pi) = 70 685 sq m area for the Arecibo telescope and that times 246462.60
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What is the diameter of a circle with that area?

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<span>1. Divide the area by Pi = 5.548156 x 10^9
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3. Multiply by 2 to find the diameter = <span>148971.886</span>

7 0
3 years ago
Triangle PQR is reflected across a line, P = (4,–5), and P’ = (–4, –5). What is the line of reflection? the x-axis the y-axis th
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For this case we have that the original vertex is given by:

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3 0
3 years ago
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Answer:

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Hope this helps you

5 0
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The correlation coefficient for the ages of drivers in a driver safety class and the number of traffic violations they have rece
Doss [256]
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