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What is the value of 42 x 4-2
  • a)
    16
  • b)
    8
  • c)
    1
  • d)
    0
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
What is the value of 42x 4-2a)16b)8c)1d)0Correct answer is option 'C'....
Understanding the Expression 42x 4-2a
To solve the expression given, we need to clarify the notation used. The expression "42x 4-2a" can be interpreted as follows:
- 42 multiplied by x
- 4 minus 2a
This means we are looking at the values of these variables to determine the final result.
Defining Variables
- Let's assume:
- x = 1
- a = 0
Since specific values for x and a are not provided, we can explore the implications of different values.
Calculating the Expression
When substituting the assumed values:
- 42x becomes 42(1) = 42
- 4 - 2a becomes 4 - 2(0) = 4
Now, the expression simplifies to:
- 42 * 4 = 168
However, this does not directly relate to the options provided (16, 8, 1, 0). A reevaluation of the expression is necessary.
Examining for Different Values
If we consider a specific scenario where:
- x = 0
- a = 2
Then:
- 42x = 42(0) = 0
- 4 - 2a = 4 - 4 = 0
This leads us to:
- 0 * 0 = 0
Thus, the value of the expression could be 0, which matches option 'd'.
Final Conclusion
However, if we consider the expression "4-2a" where a = 2, the calculation yields:
- 4 - 4 = 0
In conclusion, the interpretation of the expression plays a significant role in arriving at the correct answer. If the correct answer is indeed option 'c' (1), we may need to revisit the initial values or the expression's structure. Otherwise, based on the assumptions made, option 'd' (0) could indeed be valid under certain conditions.
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Community Answer
What is the value of 42x 4-2a)16b)8c)1d)0Correct answer is option 'C'....
Explanation: 42 x 4-2
By law of exponents:
= 42+(-2) = 42-2 = 40 = 1
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