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topjm [15]
3 years ago
5

Can u please help me with these two questions .

Mathematics
1 answer:
scoundrel [369]3 years ago
3 0
Question 1
2x + 4 + x - 7 = 3(x-7)
Add like terms, x-terms add
3x + 4 - 7 = 3(x-7)
Subtract 7 from 4
3x - 3 = 3(x-7)
Multiply out right side with distributive property, 3 times x, and 3 times -7
3x -3 = 3x - 21
Add 21 on each side to cancel -21 on right
3x + 18 = 3x
This is impossible, 3x + 18 cannot equal 3x, plug value in to check, 3(1) + 18 = 3(1), 21 not equal to 3
Question 1 Answer : No Answer

Question 2
4(m-2) = -3(m-16)
Multiply using distributive property on each side
4m - 8 = -3m + 48
Add 8 on each side to cancel -8 on left
4m = -3m + 56
Add 3m on each side to cancel -3m on right
7m = 56
Divide 7 on each side to make 7m : m
m = 56/7
m = 8
Answer to Question 2 : 8
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2 years ago
Amir says the graph of<br> y= x2 + 16 has -4 as a zero. Is Amir correct?<br> Explain.
sukhopar [10]

Answer:

  • Amir is wrong

Step-by-step explanation:

The function y = x² + 16 is positive for any value of x, hence the graph has no intersection with the x-axis and therefore has no real zero's.

If no zero's, -4 also can't be its zero.

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SashulF [63]

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Step-by-step explanation:

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3 years ago
Write 10 1/4 as a decimal number
EastWind [94]

Answer:

10.25

Step-by-step explanation:

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4 0
3 years ago
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ankoles [38]

Answer:

1) m=-7/5

2) m=-7/5

3) parallel

Step-by-step explanation:

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graph the points and then find the slope

m=-7/5

the second part:

slope= m in y=mx+b

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the last part:

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