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borishaifa [10]
3 years ago
9

I need help solving this equation: Solve x^2-4+1=0

Mathematics
1 answer:
Mamont248 [21]3 years ago
4 0

Answer:

X=3/2 or 1.732

Step-by-step explanation:

X^2-4+1=0

Combine like terms

-4 + 1 = -3

X^2-3=0

add 3 to both sides

X^2= 3

X= 3/2

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area formula: base x height 9x4=36

Step-by-step explanation:

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2 years ago
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What is the equation of the line that is parallel to the line 5x + 2y = 12 and passes through the point (-2, 4)?
Aneli [31]

Answer: 5x + 2y = -2

Step-by-step explanation:

Change 5x+2y=12 to slope intercept: 2y = 12 - 5x, y = -5x/2 + 6

A parallel line has the same slope, so the line we try to find is y = -5x/2 + b.

Substitute (-2, 4) in and get 4=5+b, so b = -1.

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Hope that helped,

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7 0
3 years ago
Which ordered pair is a solution of the equation?
frosja888 [35]

First simplify the equation.

3x+3y= -x+5y

4x=2y

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Means that the y value is 2 times the x value.

answer: C but there are more solutions than just (1,2) and (2,4)

5 0
2 years ago
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damaskus [11]

Answer:

  1. 3(2 +7)
  2. 9(3 +5)
  3. 16(2 +3)
  4. 15(2 +5)
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Step-by-step explanation:

  1. 6 + 21 = 2·3 + 3·7 = 3(2 +7)
  2. 27 + 45 = 3^3 + 3^2·5 = 9(3 +5)
  3. 32 + 48 = 2^5 + 2^4·3 = 16(2 +3)
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In each case, the factor outside parentheses is the greatest common factor, the product of the prime factors common to both numbers. When the same factor has different powers, the least power is the common factor.

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3 years ago
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