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Natali5045456 [20]
2 years ago
15

Solve y = -25x + 600

Mathematics
1 answer:
olga nikolaevna [1]2 years ago
5 0

Answer:

-\frac{y}{25} +24

Step-by-step explanation:

.

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Find the exact value of tan (arcsin (two fifths)). For full credit, explain your reasoning.
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\bf sin^{-1}(some\ value)=\theta \impliedby \textit{this simply means}
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sin(\theta )=some\ value\qquad \textit{now, also bear in mind that}
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sin(\theta)=\cfrac{opposite}{hypotenuse}\qquad 
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% tangent
tan(\theta)=\cfrac{opposite}{adjacent}\\\\
-------------------------------\\\\

\bf sin^{-1}\left( \frac{2}{5} \right)=\theta \impliedby \textit{this simply means that}
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sin(\theta )=\cfrac{2}{5}\cfrac{\leftarrow opposite}{\leftarrow hypotenuse}\qquad \textit{now let's find the adjacent side}
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\textit{using the pythagorean theorem}\\\\
c^2=a^2+b^2\implies \pm\sqrt{c^2-b^2}=a\qquad 
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c=hypotenuse\\
a=adjacent\\
b=opposite\\
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\bf \pm \sqrt{5^2-2^2}=a\implies \pm\sqrt{21}=a
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\textit{we don't know if it's +/-, so we'll assume is the + one}\quad \sqrt{21}=a\\\\
-------------------------------\\\\
tan(\theta)=\cfrac{opposite}{adjacent}\qquad \qquad tan(\theta)=\cfrac{2}{\sqrt{21}}
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\textit{and now, let's rationalize the denominator}
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3 years ago
Susanna has played the piano for s years. Patrick has played the piano for 4 more than twice the number of years that Susanna ha
scoray [572]
S=Years Susanna has played the piano 
p=Years Patrick has played the piano 

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