How do you estimate21× 78
1 answer:
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<h3>Answer:</h3>
Option B: 63
<h2>Given that:</h2>The given function is
To evaluate the value of a function at given value of input, you should replace the variable given in the function with the value of input that is given, in your case it is x = 5.
For x = 5, we have
Similarly, you will be able to evaluate the value of the function for any other input given, which is assumed to be valid.
Hence option b: 63 is the correct option.
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