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vaieri [72.5K]
3 years ago
5

Please help with these questions!

Mathematics
1 answer:
Colt1911 [192]3 years ago
8 0
1/8 + 6/8 = 7/8
17 11/13 - 9 7/13 = 8 4/13
2/8 + 4/8 = 6/8 = 3/4
8/4 + 1/4 = 9/4 = 2 1/4
9/10 + 3/10 = 12/10 = 1 1/5
2 - 3/5 = 10/5 - 3/5 = 7/5 = 1 2/5
3/4 * 4 = 12/4 = 3
1/4 * 6 = 6/4 = 1 1/2
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–12 – (–7) <br><br> A. 5 <br> B. -19 <br> C. -5 <br> D. 19
Harlamova29_29 [7]
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Read 2 more answers
Complete the square 2x^2-3x-5=0
NemiM [27]

Answer:

2(x-3/4)^2 - 49/8 = 0

Step-by-step explanation:

2x^2 - 3x - 5 = 0

First take out the 2: 2 [x^2 -3/2x - 5/2] = 0

Now complete the square inside the square brackets: 2 [(x-3/4)^2 - 9/16 - 5/2] = 0

Simplify inside the square brackets: 2 [(x-3/4)^2 - 49/16] = 0

Now times out the square brackets: 2(x-3/4)^2 - 49/8 = 0

And we're done!

8 0
3 years ago
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