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guajiro [1.7K]
3 years ago
13

Pls help for brainlist

Mathematics
2 answers:
Flauer [41]3 years ago
4 0

Answer:

15/20-8/20=7/20

Step-by-step explanation:

3/4-2/5 = 15/20-8/20 so

snow_tiger [21]3 years ago
3 0

Answer: 7/20

Step-by-step explanation:

3/4 - 2/5

= 3x5/4x5 - 2x4/5x4

=15/20 - 8/20

= 7/20

Hope it helped u,

pls mark as the brainliest

^_^

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What happens when you multiply 2 negative numbers?
dalvyx [7]
1) either you'll get a negative number
Or
2) You'll get a positive Number..
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3 years ago
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The angle of elevation to a nearby tree from a point on the ground is measured to be
slega [8]

Answer:

186.6

Step-by-step explanation:

Based on the given conditions, formulate: 91 ×tan 64°

Calculate the approximate value: 91×2.050304

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186.6

6 0
2 years ago
How do I solve this type of problem? I'm trying to find both missing values. Please explain how to solve this as thoroughly as y
goldenfox [79]
Hi there! 

In order to solve, we'll need to use a proportion: 20/a = 21/20. Then, we'll cross-multiply and solve to find a: 21a = 400 | a = 19.05. Next, to find b, we can just use pythagorean theorem: 20^2 + (400/21)^2 = b^2 | b = 27.62.
We are using geometric mean to solve for a, then using pythagorean theorem to solve for b. If you need more help with geometric mean, or would like a complete explanation, please let me know! I'd be happy to provide you with that information.

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
3 0
3 years ago
How do I evaluate using the given values <br><br> P+r-2; use p=3 and r=2
natali 33 [55]

Answer:

3

Step-by-step explanation:

P+r-2

=3+2-2

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4 0
3 years ago
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Does anyone know the step by step for this 9(m +5) - 3(m - 2) = 8m + 31
tigry1 [53]
<h3>Answer :</h3>

<u>Given</u> :

  • 9(m + 5) - 3(m - 2) = 8m + 31

We have to find value of m.

➠ 9(m + 5) - 3(m - 2) = 8m + 31

➠ 9m + 45 - 3m + 6 = 8m + 31

➠ 9m - 3m + 45 + 6 = 8m + 31

➠ 6m + 51 = 8m + 31

➠ 51 - 31 = 8m - 6m

➠ 20 = 2m

➠ m = 20/2

➠<u> m = 10</u>

<h3>Hope It Helps!</h3>

6 0
3 years ago
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