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larisa86 [58]
4 years ago
15

Can someone help me solve this ?

Mathematics
1 answer:
Agata [3.3K]4 years ago
6 0

5x {}^{2}  + 6x - 3 + 4x {}^{2}  - 8x + 2 =
= 9x {}^{2}  - 2x - 1
In the original expression there are 6 terms in the simplyfied one there are only 3

In the simplified expression coefficient of x is (-2)







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GEOMETRY PLEASE HELP ME URGENT
Basile [38]
Converse (switch p and q)
If an angle is obtuse, then it measures 128°

This is false (a 127° angle is obtuse, but it does not measure 128°)

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Inverse
(negations of p and q)
If an angle does not measure 128°, then it is not obtuse

This is false (a 127° angle does not measure 128°, but it is obtuse)

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If an angle is not obtuse, it does not measure 128°

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5 0
4 years ago
Which number line shows the estimate of 22 in the correct interval of integers?​
Marta_Voda [28]

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5 0
3 years ago
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valkas [14]
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4 0
3 years ago
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What is the wave speed of a wave that has a frequency of 25 Hz and a wavelength of 0.80 m?
tatuchka [14]

Answer:

Speed = 20 m/s

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3 0
3 years ago
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Sav [38]
Answer: 180cm


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