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Kamila [148]
3 years ago
11

Cos (90 - x) = -0.2. What is sin(x)?

Mathematics
2 answers:
PIT_PIT [208]3 years ago
5 0

Your answer is here :-[

Aloiza [94]3 years ago
4 0

Answer:

-0.2

Step-by-step explanation:

Sine and cosine are co-functions.

That means, cos(90-x)=sin(x) or sin(90-x)=cos(x).

So here since cos(90-x)=-0.2, then sin(x)=-0.2.

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Step-by-step explanation:

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What is the missing expression that would make the left-hand-side of the equation equal to the right-hand-side?
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Given:

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Let the missing value be k.

\dfrac{k}{x-2}/\dfrac{x^2-1}{x^2-4x+4}=\dfrac{5(x-2)}{x-1}

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Using the formulae (a-b)^2=a^2-2ab+b^2 and (a-b)(a+b)=a^2-b^2.

\dfrac{k}{x-2}\times \dfrac{(x-2)^2}{(x-1)(x+1)}=\dfrac{5(x-2)}{x-1}

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Cancel out the common factors from both sides.

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Therefore, the missing value is 5(x+1).

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4 years ago
Which expression shows the result of applying the distributive property to 3(15x−17) ?
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Can someone help please. Im stuck.
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Answer:

the answer is B.

Step-by-step explanation:

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If 12 pairs of socks sell for $5.79, then the unit rate is 12 : 5.79. If we want to find a unit rate for one pair of socks, we need to divide 5.79 by 12:

5.79 / 12 = 0,4825

So the unit rate is 1 : 0.4825
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