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kifflom [539]
3 years ago
8

Create a problem on sum or difference of equal using angles. Then solve​

Mathematics
2 answers:
SIZIF [17.4K]3 years ago
3 0

Answer:

x=5

Step-by-step explanation:

2x-4=6

<em>2x=6+4</em>

<em>2x/2=10/2</em>

<em>x=5</em>

galina1969 [7]3 years ago
3 0

Answer:

ABC

Step-by-step explanation:

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Triangle has side length 7, 10 and 12 is it a right triangle explain your reasoning
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Answer: No, because 7^2 + 10^2 is > 12^2

Step-by-step explanation: 7^2 +10^2= 49 + 100= 149 149 \neq 144

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Sin α = 21/29, α lies in quadrant II, and cos β = 15/17, β lies in quadrant I Find sin (α - β).
Sever21 [200]
\sin(\alpha-\beta)=\sin\alpha\cos\beta-\cos\alpha\sin\beta

\sin\alpha=\dfrac{21}{29}\implies \cos^2\alpha=1-\sin^2\alpha=\dfrac{400}{841}

Since \alpha lies in quadrant II, we have \cos\alpha, so

\cos\alpha=-\sqrt{\dfrac{400}{841}}=-\dfrac{20}{29}

\cos\beta=\dfrac{15}{17}\implies\sin^2\beta=1-\cos^2\beta=\dfrac{64}{289}

\beta lies in quadrant I, so \sin\beta>0 and

\sin\beta=\sqrt{\dfrac{64}{289}}=\dfrac8{17}

So

\sin(\alpha-\beta)=\dfrac{21}{29}\dfrac{15}{17}-\left(-\dfrac{20}{29}\right)\dfrac8{17}=\dfrac{475}{493}
8 0
3 years ago
What is the difference?<br> 9/5-1/6
Oksana_A [137]
9/5-1/6
(54-5)/30
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3 years ago
Read 2 more answers
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lbvjy [14]

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Step-by-step explanation:

8 0
3 years ago
Put these numbers in order from least to greatest.
ddd [48]

Answer:

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