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Maslowich
3 years ago
15

The measure of one of the acute angles in a right triangle is five times the measure of the other acute angle. what is the measu

re of the smaller acute angle?
Mathematics
1 answer:
dusya [7]3 years ago
8 0
The measure of the smaller angle is 15°
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PLZ HELP
Alex

Answer:

The correct option is C ) 109.5°

Therefore,

m\angle E=109.5\°

Step-by-step explanation:

Given:

In Triangle DEF

d = 10

e = 18

f = 12

To Find

angle E = ?

Solution:

In Triangle DEF , Cosine Rule says

\cos E=\dfrac{f^{2}+d^{2}-e^{2}}{2fd}

Substituting the values we get

\cos E=\dfrac{12^{2}+10^{2}-18^{2}}{2\times 12\times 10}

\cos E=\dfrac{-80}{240}=-\dfrac{1}{3}

Therefore,

\angle E=\cos^{-1}(-0.3333)

m\angle E=109.5\°       ............As it is in Second Quadrant

Therefore,

m\angle E=109.5\°

4 0
3 years ago
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olganol [36]

Answer:

The graph shows a steady declining plot as the aveage traffic volume increases. Since y axis is speed the correct answer is that as traffic volume increases the average vehicle speed decreases.

Step-by-step explanation:

4 0
2 years ago
Are 8x+ 16 and 4(2x+4) equivalent
8090 [49]
Yes they are equivalent
8 0
3 years ago
How much will two points cost on a $175,000 mortgage?
Triss [41]
                                                                             43  $3500.00


because you must calculate $175,000.00*.02 so when that is multiplied it equalos $3500.00
8 0
2 years ago
Find the simplified form of each expression (x/2y^5)^-2
charle [14.2K]
Hello there!

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\frac{4y^{10} }{ x^{2} }

Hope this helps! :)
~Zain
8 0
3 years ago
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