Answer:
x
=
72
Step-by-step explanation:
Answer:
7 : 20
Step-by-step explanation:
2km = 2000m
Then the ratio of 700m to 2 km is :
700 / 2000
Then the ratio in simplest form is :
7 / 20

Option ( C ) is the correct answer.
Answer: Melanie is the correct answer (hopefully)
Step-by-step explanation:
7 is a better decision because its higher than 6 which gets a better chance of winning (sorry for being bad at explaining)
Answer:
See Below.
Step-by-step explanation:
By the definition of the logarithm, if we have:

This means that we have some value <em>y</em> such that:

If <em>x</em> is -8, then:

As you can see,<em> </em>there is no real value* that can make the result negative. No matter what the value of <em>y</em> is, we will simply get another positive value.
So, -8 or any other negative value or zero is not included in our domain. 0 is not included because, likewise, we can’t raise 2 to a power and get 0 as a result.
*There is no <em>real</em> value for which 2 raised to <em>y</em> is -8. However, as you will learn much much later, there are in fact <em>infinitely</em> many <em>complex </em>(imaginary) solutions such that 2 raised to <em>y </em>is indeed -8.