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miss Akunina [59]
2 years ago
8

Find tan A. A. tanA = 12/5 B. tanA = 5/12 C. tanA = 13/5 D. tanA = 5/13

Mathematics
1 answer:
Andreyy892 years ago
7 0

Answer:

tanA=BC/AC

BC=20

AC=48

so,BC/AC=20/48=5/12

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an engineer has a 54 inch wire that she has to cut into two pieces so that one piece is 8 inches shorter than the other find the
Brilliant_brown [7]

Hey there!!

Let's take the length of the bigger piece as x inches

Then, the length of the smaller piece would be x - 8 inches

The sum of these lengths would be 54 inches

... x + x - 8 = 54

... 2x - 8 = 54

... Add 8 on both sides

... 2x = 62

... Divide 2 on both sides

... x = 31

Hence, the length of the bigger piece = 31 inches

The length of the smaller piece would be = 31 - 8 = 23 inches

Hope my answer helps!!

4 0
3 years ago
Could use help with this one! Will give thanks and brainliest to correct answer
cluponka [151]
I believe the answer is A
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Someone help.I'm new<br>i suck at math​.Pleaseweee 50 points?
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Answer:

45°

Step-by-step explanation:

Let's understand "supplement" and "complement" -- basics of geometry of angles.

  • When we say two angles, a & b, are supplementary, we mean that both ADD up to 180.
  • When we say two angles, a & b, are complementary, we mean that both ADD up to 90.

<em><u>If we have given an angle, such as "x", to find its supplement, we subtract the angle from 180. Similarly, we would need to subtract the angle x from 90 if we were to find the complement of the angle.</u></em>

<em><u /></em>

We want to find complement of 45, so we subtract 45 from 90 to get:

90 - 45 = 45°

Hence, the complement of a 45° angle = 45°

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