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asambeis [7]
2 years ago
7

Using the sine rule, calculate the length y. Give your answer to 2 s.f.​

Mathematics
1 answer:
Tpy6a [65]2 years ago
8 0

Answer:

y = 9.84 mm

Step-by-step explanation:

<h2>Sine rule:</h2>

Law of sine:

   \sf \boxed{\bf \dfrac{a}{Sin \ A}=\dfrac{b}{Sin \ B}= \dfrac{c}{Sin \ C}}

    a = y

    A = 31°

   b  = 17 mm

    B = 117°

\sf \dfrac{y}{Sin \ 31^\circ}=\dfrac{17}{Sin \ 117^\circ}\\\\

          \sf y = \dfrac{17}{Sin \ 117^\circ}*Sin \ 31^\circ\\\\  y = \dfrac{17}{0.89}*0.515\\\\y = 9.84 \ mm

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sweet-ann [11.9K]

Answer:

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Step-by-step explanation:

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3 0
2 years ago
Find the solutions of the system y = –2x – 1 and y = 3–x–1.
sweet [91]

There are two intersection points (-1, 1) and (-2, 3), and the x coordinates are -1 and -2.

<h3>What is an exponential function?</h3>

It is defined as the function that rapidly increases and the value of the exponential function is always a positive. It denotes with exponent y = a^x

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The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

We have two equations:

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\rm y = 3^{-x-1}

From the graph, we can see:

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x = -2, y = 3

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brainly.com/question/11487261

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5 0
2 years ago
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ollegr [7]
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3 years ago
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DIA [1.3K]

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