Evaluate the expression (ab)2 for a = 2 and b = 5.

-50

Step-by-step explanation:

First, we must know that ab is the same as:

ab is the same as a multiply b

Now, since a is given as -5, we can substitute a with -5. This is shown below:

substitute ab with -5

Similarly, b is given as 10. So, we can substitute b with 10:

substitute b with 10

With this, we can now evaluate ab as shown below:

ab is equal to -50

(a) the volume of the cone is 20/3 in3

hence, option a is correct.