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zlopas [31]
3 years ago
13

HELP!!! 15 points. picture below

Mathematics
2 answers:
vlada-n [284]3 years ago
7 0

Step-by-step explanation:

\sin( \alpha )  =  \frac{ \sqrt{5} }{3}  \\  \alpha  = 48.19 \: degrees  \\   \cos( \alpha )  =  \frac{2}{3}

Vaselesa [24]3 years ago
3 0

Answer:

cos theta =± 2/3

Step-by-step explanation:

sin theta = sqrt(5) /3

sin theta = opp side / hypotenuse

We know that

a^2 + b^2 = c^2 from the pythagorean theorem

opposite side ^2 + adjacent side ^2 = hypotenuse ^2

( sqrt(5)) ^2 +   adjacent side ^2  = 3^2

5 +  adjacent side ^2  = 9

Subtract 5 from each side

5-5 +  adjacent side ^2  = 9-5

 adjacent side ^2  = 4

Taking the square root of each side

 adjacent side   = ±2

We know that

cos theta = adj side / hyp

cos theta =± 2/3

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anzhelika [568]

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5 0
2 years ago
I cant seem to get one of these answers when i work it out. please help​
lisov135 [29]

Answer:

first option

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f(\frac{1}{2x} )

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= \frac{2(2x)}{2x(\frac{1}{2x}+3) }

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3 0
2 years ago
Given the two points (2,4) and (-3,2), what is the slope of the line that goes through both of these points?
Andreyy89
With the formula: m=(y1-y2)/(x1-x2) you can sub in the values to get the slope (m).

m=(4-2)/(2-(-3))
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Therefore the slope is 2/5.
5 0
2 years ago
Read 2 more answers
#26 7s=4 please help
const2013 [10]
7s = 4
/7.    /7 


s= 4/7

thats the equation right?
7 0
3 years ago
Read 2 more answers
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