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anastassius [24]
3 years ago
5

When must a system of linear equations be solved algebraically.

SAT
1 answer:
Pie3 years ago
8 0

Answer: The solution to a system of linear equations is the point at which the lines representing the linear equations intersect. Two lines in the x y xy xy -plane can intersect once, never intersect, or completely overlap.

Explanation:

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What common items used today were invented during the war.
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One was, synthetic fabrics
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PLEASE I NEED HELP with this question. "In one paragraph, explain what Politically Correct English is"
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5 0
3 years ago
the volumes of two similar solids are 210 m3 and 1,680 m3. the surface area of the larger solid is 856 m2. what is the surface a
kolezko [41]

The surface area of the smaller solid is found to be 214 square meters.

<h3>What is Surface area?</h3>

The surface area is given as the sum of the area of all the faces of a three-dimensional object.

The same shape has equivalent ratio of the surface area to volume. It is given as:

\rm \dfrac{\sqrt{area_1}}{\sqrt{area_2}}=\dfrac{\sqrt[3]{Volume_1} }{\sqrt[3]{Volume_2} }

On considering the power of 6 at both the sides of the equation:

\rm \dfrac{area_1^2}{area_2^2}=\dfrac{volume_1}{volume_2}

Considering area 1 and volume 1 for the larger solid, and area 2 and volume 2 for the smaller solid, substituting the values give:

\rm\dfrac{(856\;m^2)^3}{(area_^2)^3}=\dfrac{(1680\;m^3)^2}{(210\;m^3)^2}

By solving the above equation, the area of the smaller solid is found as 214 square meters. Thus, option B is correct.

Learn more about volume, here:

brainly.com/question/3204154

#SPJ1

6 0
2 years ago
Identify the oxidation numbers for all the elements in the reactants and products for 2mno4−(aq)+3s2−(aq)+4h2o(l)→3s(s)+2mno2(s)
Sidana [21]

The oxidation number if eah of the elements is as follows;

  • Oxidation number of Mn is + 7 on the right hand side and +4 on the right hand side
  • Oxidation number if hydrogen is +1 on both sides
  • The oxidation number of oxygen is -2 on both sides
  • The oxidation number of sulfur is -2 on the lefthand side and zero on the right hand side.

<h3>What is a redox reaction?</h3>

A redox reaction is one in which there is a change in the oxidation number of the reactants from left to right.

Let us now consider the oxidation  number of each element from left to right;

  • Oxidation number of Mn is + 7 on the right hand side and +4 on the right hand side
  • Oxidation number if hydrogen is +1 on both sides
  • The oxidation number of oxygen is -2 on both sides
  • The oxidation number of sulfur is -2 on the lefthand side and zero on the right hand side.

Learn more about oxidation number: brainly.com/question/15167411?

3 0
2 years ago
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