Evaluate the expression.

Question

4 to the -1 power + 7 to the -1 power

Answer 1

To evaluate the expression 4 to the -1 power + 7 to the -1 power, we need to calculate each term and then add them together.

First, let's find 4 to the -1 power:
4^-1 = 1/4

Now, let's find 7 to the -1 power:
7^-1 = 1/7

Finally, we add the two terms together:
1/4 + 1/7 = (7 + 4)/(4*7) = 11/28

Therefore, 4 to the -1 power + 7 to the -1 power is equal to 11/28.