Which of the following choices will evaluate the expression a2 + b when a = 2 and b = 3?

Question

06-07-2022
Mathematics

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Which of the following choices will evaluate the expression a2 + b when a = 2 and b = 3?

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varshamittal029 varshamittal029 · Answer 1 · 2022-07-08T17:05:44-04:00

7 evaluates the expression a2 + b.

option a.7 is the correct choice which evaluates the given expression.

Given values are a = 2 and b =3

the given expression is = a2 + b

To evaluate an expression, we first replace the variable with the given number, then we use the order of operations to simplify the expression.

Substitute these value in the given expression.

=2 × 2 ₊ 3

=7

Every time we replace the variables with its values we get the answer as 7. The other options present does not satisfy the equation.

For ex: 25 , we don't get this number when we substitute the given values in the expression. 10 is also not what we get when we solve the expression. Likewise other options are also invalid.