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Zepler [3.9K]
3 years ago
13

PLEASE PLEASE HELP ME PLEASE

Mathematics
1 answer:
kaheart [24]3 years ago
8 0

First, you split the triangle down the middle, so you make to right triangles. Then, find the area of one of the right triangles, then you can just multiply it by two, and you get the answer.

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Basile [38]

Use the substitution method for y=0

(40,0)

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5 0
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Find 2 common angles that sum to (17pi/12) 2. Evaluate tan(17pi/12) using the sum identity for tangent.
Dmitry [639]
Note that
\frac{17 \pi }{12} = \frac{3 \pi }{12} + \frac{14 \pi }{12} = \frac{ \pi }{4} + \frac{7 \pi }{6}

Note that
x= \frac{ \pi }{4}:\,\, sin(x) =cos(x)= \frac{1}{ \sqrt{2} },\,tan(x)=1\\x= \frac{7 \pi }{6} :\,\,sin(x)=- \frac{1}{2} ,\,\,cos(x)=- \frac{ \sqrt{3} }{2} ,\,\,tan(x)= \frac{1}{ \sqrt{3} }

Use the identity
tan(x+y)= \frac{tan(x)+tan(y)}{1-tan(x)tan(y)}

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tan( \frac{17 \pi }{12} )= \frac{1+ \frac{1}{ \sqrt{3} } }{1- \frac{1}{ \sqrt{3} } } = \frac{ \sqrt{3}+1 }{ \sqrt{3}-1} =  \frac{( \sqrt{3}+1 )^{2}}{( \sqrt{3}-1 )( \sqrt{3}+1 )}  = \frac{3+1+2 \sqrt{3}}{3-1} =2+ \sqrt{3}

Answer: 2 + √3
8 0
3 years ago
What is 152% of 72 plz give me answer
Alexxx [7]
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6 0
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mr Goodwill [35]

Answer:

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Step-by-step explanation:

Given

Floors = 5

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Required

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This is calculated by multiplying number of cars per floor by number of floors.

Total = Floors*Cars

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Total = 585

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Dafna1 [17]

Answer:

they move one over to the left

Step-by-step explanation:

a zero is added to the number and the decimal is shifted


3 0
3 years ago
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