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If log x = 2, what is the square root of x?
  • a)
    2
  • b)
    3
  • c)
    4
  • d)
    12
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
If log4x = 2, what is the square root of x?a)2b)3c)4d)12Correct answer...
Given log4= 2, we can determine that 4 to the second power is x; therefore the square root of x is 4.
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Directions:In the passages that follow, some words and phrases are underlined and numbered. In the answer column, you will find alternatives for the words and phrases that are underlined. If you think that the original version is best, choose “NO CHANGE,”. You will also find questions about a particular section of the passage, or about the entire passage. These questions will be identified either by an underlined portion or by a number in a box. Look for the answer that clearly expresses the idea, is consistent with the style and tone of the passage, and makes the correct use of standard written English. Read the passage through once before answering the questions. For some questions, you should read beyond the indicated portion before you answer.PassageConstruction DestructionWatching a local construction project as it unfolds can evoke (1) a series of many different emotions. A new subdivision of homes (2) built into a once (3) thickly wooded plot of land often devastates the natural beauty of the entire area. Many builders, however, will (4) have taken great care to maintain as much of the natural landscape as possible by keeping mature trees untouched (5) when possible. Despite this careful attention, construction damage to existing trees can wreak havoc that only appears years after the construction is complete.Any disruption to a tree’s root system, trunk, or main branches can often be tied to construction. When considering the (6) large, heavy equipment used at construction sites, it is easy to understand why (7) they choose to flatten the land and start over with new plantings. During construction, much of the damage to existing trees occurs beneath the soil, which is why (8) it is often not detected until much later. If 40 percent or more of a root system (9) is a loss, the tree will probably die.1.Tree roots typically lie close to the surface of the soil and (10) extends way beyond the circumference of the tree’s canopy.2. As the bulldozers, dump trucks, and cement trucks (11) drives over the soil, they can easily crush the tender roots below.3. Compacting soil around the vital roots with the heavy (12) equipment, may destroy the tree as well, (13)4.Roots need air pockets around them in order to stay healthy.5. Also, by adding fill dirt or topsoil, the roots suddenly become buried.Q. (13)The writer wishes to conclude this sentence with a phrase that would continue the explanation of the importance of a tree’s root system. Which choice would best accomplish this?

Directions:In the passages that follow, some words and phrases are underlined and numbered. In the answer column, you will find alternatives for the words and phrases that are underlined. If you think that the original version is best, choose “NO CHANGE,”. You will also find questions about a particular section of the passage, or about the entire passage. These questions will be identified either by an underlined portion or by a number in a box. Look for the answer that clearly expresses the idea, is consistent with the style and tone of the passage, and makes the correct use of standard written English. Read the passage through once before answering the questions. For some questions, you should read beyond the indicated portion before you answer.PassageConstruction DestructionWatching a local construction project as it unfolds can evoke (1) a series of many different emotions. A new subdivision of homes (2) built into a once (3) thickly wooded plot of land often devastates the natural beauty of the entire area. Many builders, however, will (4) have taken great care to maintain as much of the natural landscape as possible by keeping mature trees untouched (5) when possible. Despite this careful attention, construction damage to existing trees can wreak havoc that only appears years after the construction is complete.Any disruption to a tree’s root system, trunk, or main branches can often be tied to construction. When considering the (6) large, heavy equipment used at construction sites, it is easy to understand why (7) they choose to flatten the land and start over with new plantings. During construction, much of the damage to existing trees occurs beneath the soil, which is why (8) it is often not detected until much later. If 40 percent or more of a root system (9) is a loss, the tree will probably die.1.Tree roots typically lie close to the surface of the soil and (10) extends way beyond the circumference of the tree’s canopy.2. As the bulldozers, dump trucks, and cement trucks (11) drives over the soil, they can easily crush the tender roots below.3. Compacting soil around the vital roots with the heavy (12) equipment, may destroy the tree as well, (13)4.Roots need air pockets around them in order to stay healthy.5. Also, by adding fill dirt or topsoil, the roots suddenly become buried.Q. (10)

Directions:In the passages that follow, some words and phrases are underlined and numbered. In the answer column, you will find alternatives for the words and phrases that are underlined. If you think that the original version is best, choose “NO CHANGE,”. You will also find questions about a particular section of the passage, or about the entire passage. These questions will be identified either by an underlined portion or by a number in a box. Look for the answer that clearly expresses the idea, is consistent with the style and tone of the passage, and makes the correct use of standard written English. Read the passage through once before answering the questions. For some questions, you should read beyond the indicated portion before you answer.PassageConstruction DestructionWatching a local construction project as it unfolds can evoke (1) a series of many different emotions. A new subdivision of homes (2) built into a once (3) thickly wooded plot of land often devastates the natural beauty of the entire area. Many builders, however, will (4) have taken great care to maintain as much of the natural landscape as possible by keeping mature trees untouched (5) when possible. Despite this careful attention, construction damage to existing trees can wreak havoc that only appears years after the construction is complete.Any disruption to a tree’s root system, trunk, or main branches can often be tied to construction. When considering the (6) large, heavy equipment used at construction sites, it is easy to understand why (7) they choose to flatten the land and start over with new plantings. During construction, much of the damage to existing trees occurs beneath the soil, which is why (8) it is often not detected until much later. If 40 percent or more of a root system (9) is a loss, the tree will probably die.1.Tree roots typically lie close to the surface of the soil and (10) extends way beyond the circumference of the tree’s canopy.2. As the bulldozers, dump trucks, and cement trucks (11) drives over the soil, they can easily crush the tender roots below.3. Compacting soil around the vital roots with the heavy (12) equipment, may destroy the tree as well, (13)4.Roots need air pockets around them in order to stay healthy.5. Also, by adding fill dirt or topsoil, the roots suddenly become buried.Q. (3)

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If log4x = 2, what is the square root of x?a)2b)3c)4d)12Correct answer is option 'C'. Can you explain this answer?
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