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balandron [24]
3 years ago
7

Si "m" es el lado mayor de un triángulo, dos cuyos ángulos interiores miden 30° y 60°, entonces el perímetro del triángulo es

Mathematics
1 answer:
lions [1.4K]3 years ago
7 0

Answer:

perimetro = \dfrac{(3 + \sqrt{3})m}{2}

Step-by-step explanation:

triángulo 30°-60°-90°

1~:~\sqrt{3}~:~2

1m~:~m\sqrt{3}~:~2m

\dfrac{m}{2}~:~\dfrac{m\sqrt{3}}{2}~:~m

perimetro = \dfrac{m}{2} + \dfrac{m\sqrt{3}}{2} + m

perimetro = \dfrac{m}{2} + \dfrac{m\sqrt{3}}{2} + \dfrac{2m}{2}

perimetro = \dfrac{m + m\sqrt{3} + 2m}{2}

perimetro = \dfrac{3m + m\sqrt{3}}{2}

perimetro = \dfrac{(3 + \sqrt{3})m}{2}

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2-3y\leq 12\\-2+2-3y\leq 12-2\\-3y\leq 10\\\frac{-3}{3}y\leq  \frac{10}{3} \\y\geq \frac{10}{3}

Step-by-step explanation:

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If Lisa’s gross pay was $1204.89 and her net pay was $818.44, about what percent of her pay was deducted?
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Answer:

About 32% of her pay was deducted ⇒ 2nd answer

Step-by-step explanation:

Lisa’s gross pay was $1204.89

Her net pay was $818.44

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<u><em>Lets calculate the deduction amount</em></u>

The deduction amount is the difference between the gross pay and

the net pay

∵ The amount deducted = gross pay - net pay

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∵ Net pay = $818.44

∴ The amount deducted = 1204.89 - 818.44 = $386.45

<u><em>Now lets find the percentage of the amount deducted </em></u>

∵ Percent of deducted = [amount deducted/gross pay] × 100%

∵ The amount deducted = $386.45

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∴ Percent of deducted = \frac{386.45}{1204.89} × 100%

∴ Percent of deducted = 32.07%

<em>About 32% of her pay was deducted</em>

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probability \ of \ spade \ then \ red\ card\ without\ replacement = \frac{1}{4} \times\frac{4}{17} =\frac{1}{17}

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