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Fofino [41]
3 years ago
11

Aaron claims the same answer could also be found by adding either –5 + 3 or –3 + 5.

Mathematics
2 answers:
Debora [2.8K]3 years ago
8 0

Answer:

Step-by-step explanation:

-5 + 3 = -2  -5 is larger

5 + (-3) = 2   5 is larger

2 is larger than -2

EastWind [94]3 years ago
5 0

Answer:

The negative signs were switched.

Step-by-step explanation:

Aaron claims the same answer could also be found by adding either –5 + 3 or –3 + 5.

What is the error in Aaron’s reasoning?

The commutative property is not true for addition.

The negative signs were switched.

The numbers are not in the correct order.

The associative property was used.

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4 days is the correct answer

Step-by-step explanation:

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Answer:

12 +18 + x+y + z +w

In this special case we know that x+y =12 and z+w =18  and for this case we can add all the values 12+18 +12+18=60 and that represent the perimeter  

Step-by-step explanation:

For this case we know that the perimeter is given by:

12 +18 + x+y + z +w

In this special case we know that x+y =12 and z+w =18  and for this case we can add all the values 12+18 +12+18=60 and that represent the perimeter  

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Step-by-step explanation:

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Step-by-step explanation:

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Write the equation of the parabola that has its x-intercepts at (1+<img src="https://tex.z-dn.net/?f=%5Csqrt%7B5%7D" id="TexForm
VladimirAG [237]

Answer:

y=2x^2-4x-8

Step-by-step explanation:

<u>Factored form of a parabola</u>

y=a(x-p)(x-q)

where:

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  • a is some constant.

Given x-intercepts:

  • (1+√5, 0)
  • (1-√5, 0)

Therefore:

\implies y=a(x-(1+\sqrt{5}))(x-(1-\sqrt{5}))

\implies y=a(x-1-\sqrt{5})(x-1+\sqrt{5})

To find a, substitute the given point (4, 8) into the equation and solve for a:

\implies a(4-1-\sqrt{5})(4-1+\sqrt{5})=8

\implies a(3-\sqrt{5})(3+\sqrt{5})=8

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Therefore, the equation of the parabola in factored form is:

\implies y=2(x-1-\sqrt{5})(x-1+\sqrt{5})

Expand so that the equation is in standard form:

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\implies y=2(x^2-x-x+\sqrt{5}x-\sqrt{5}x+\sqrt{5}-\sqrt{5}+1-5)

\implies y=2(x^2-2x-4)

\implies y=2x^2-4x-8

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2 years ago
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