Circumference = πD
π*49 = 153.94 (We can leave it as it is because there are two halves to the circle on either side of the training track)
81*2 = 162 (There are two 81 meter lines)
153.94+162 = 315.94m
The length of the training track is 315.94m
Hope this helps! :)
Answer:
Suppose that logb b = x.
bx = b (Use the definition of a logarithm.)
bx = b1
x = 1 (Use the common base property.)
So, logb b = 1.
move -7 to the right side of the equal sign which becomes +7
x=2+7
7 + 2 is 9
=9
Either a or b. Depends on what X equals.
For example, question a.-
X+3, it has to be at least 1.
Answer b-
3X, has to be a little over 2. So I guess the most correct answer has to be A.
