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Mazyrski [523]
3 years ago
12

80% of salmon pass through a single dam unharmed. By what percent does the number of salmon decrease when passing through a sing

le dam?
Mathematics
2 answers:
aalyn [17]3 years ago
3 0

Answer:20%

Step-by-step explanation:

icang [17]3 years ago
3 0

Answer: 20%

Step-by-step explanation:

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4 years ago
Check all that apply. <br> if secØ= 13/12, then:
makvit [3.9K]

Based on <em>trigonometric</em> formulas, we can find that the options that applies to the given <em>trigonometric</em> relationship are tan θ = 5/12 and cos θ = 12/13.

<h3>How to find the exact form of trigonometric functions</h3>

There six <em>trigonometric</em> functions, which are related by a group of expressions, which will be used in this question:

\cos \theta = \frac{1}{\sec \theta} = \frac{12}{13}

\sin \theta = \sqrt{1 - \cos^{2}\theta}

\sin \theta = \sqrt{1 -\left(\frac{12}{13} \right)^{2}}

\sin \theta = \frac{5}{13}

\csc \theta = \frac{1}{\sin \theta} = \frac{13}{5}

\tan \theta = \sqrt{\sec^{2}\theta - 1}

\tan \theta = \sqrt{\left(\frac{13}{12} \right)^{2}-1}

\tan \theta = \frac{5}{12}

Based on <em>trigonometric</em> formulas, we can find that the options that applies to the given <em>trigonometric</em> relationship are tan θ = 5/12 and cos θ = 12/13.

<h3>Remark</h3>

The statement is incomplete. Complete form is shown below:

<em>Check all that apply: </em>

<em />

<em>If sec θ = 13/12, then: </em>

<em />

<em>a) sin θ = 12/13</em>

<em>b) tan θ = 5/12</em>

<em>c) cos θ = 12/13</em>

<em>d) csc θ = 12/13</em>

To learn more on trigonometric equations: brainly.com/question/22624805

#SPJ1

5 0
2 years ago
Help me plz idk how
Alika [10]
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