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ipn [44]
3 years ago
15

Please help and show work if you can​

Mathematics
1 answer:
UkoKoshka [18]3 years ago
5 0

Answer:

38. <1 = 38^{o}, <2 = 32^{o}, <3 = 110^{o}

39. <1 = 71^{o}, <2 = 28^{o}, and <3 = 81^{o}

Step-by-step explanation:

38. Sum of angles in a triangle = 180^{o}

So that;

38 + 110 + <2 = 180^{o}

148 + <2 = 180^{o}

<2 = 180^{o} - 148

<2 = 32^{o}

Thus,

<1 = 38^{o} (alternate angle principle)

<3 = 110^{o}

Therefore;

<1 = 38^{o}, <2 = 32^{o}, <3 = 110^{o}

39. <2 = 28^{o} (alternate angle principle)

So that;

sum of angles in a triangle = 180^{o}

<1 + <2 + 81 = 180^{o}

<1 + 28^{o} + 81 = 180^{o}

<1 + 109 = 180^{o}

<1 = 180^{o} - 109

   = 71^{o}

<1 = 71^{o}

<3 = 81^{o}

<1 = 71^{o}, <2 = 28^{o}, and <3 = 81^{o}

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Answer:

140 minutes

Step-by-step explanation:

After 28 mins you've gone 4 miles, assuming this rate is constant and you dont slow down or speed up, in order to get to 20 miles you will have run 5x as much (20/4 = 5), thus 5x the amount of time (28x5).

20/4 = 5

5x28 = 140

8 0
3 years ago
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wlad13 [49]

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Step-by-step explanation:

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4 0
3 years ago
Rút gọn M=[ căn x -2/x-1- căn x +2/x+2 căn x+ 1] nhân x bình-2x+1/2 với x&gt;0 x khác 1
Ymorist [56]

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Step-by-step explanation:

3 0
3 years ago
Look ate the picture down below, and please help me i would really appreciate it
zavuch27 [327]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
If a bank account doubles in size every 5 years, then by what percent does it grow after only 3 years? Round to the nearest tent
mr Goodwill [35]

Answer:

Step-by-step explanation:

Alright, let get started.

Suppose the initial deposit in account = x

After five years, this accounts get doubled means  = 2x

Means in 5 years , the growth = 2x-x = x

So, in 1 year, the growth will be = \frac{x}{5}

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Hence percentage growth is 60 %.    :  Answer

Hope it will help :)


4 0
3 years ago
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