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irina1246 [14]
3 years ago
6

1 2/5 - (-3/5) what would the answer me?

Mathematics
2 answers:
12345 [234]3 years ago
6 0
1 2/5 - (- 3/5) = 1 2/5 + 3/5 = 2
notsponge [240]3 years ago
3 0
It is 2 .............................
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Step-by-step explanation:

Redraw the triangle formed in the picture and use H for the hypotenuse, O for the block height, and A for the base.  Now we can use trig (SOHCAHTOA) to find the answaers.

Using sine, we can first find the gauge block height, O (Opposite).  Given the Hypotenuse (H) is 8.9 m, we can use the definition of the sine of an angle to find the height, O.

Sine(34) = Opposite/Hypotenuse (O/H), or O = H*Sine(34)

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The base of the triangle, A, can be determined with cosine.

Cosine(34) = A/O, or A = Cosine(34)*O

A = (0.82904)*(8.9)

A = 7.3784 m

The sum of all angles in a triangle is 180 degrees.  

180 = X + 34 + 90

X = 56 degrees

5 0
3 years ago
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here is my answer

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