Evaluate the following. click on "not a real number" if applicable.

1) is not a real number.

2)

Step-by-step explanation:

1) The square root of a number is defined for real numbers if and only if the number under the square root sign is greater than or equal to zero.

This implies that is not a real number because

2) .

The number under the square root sign is , which is greater than zero. Note that the negative sign is not inside the square root sign, it is outside it.

it shoild be o

step-by-step explanation:

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!