The First one
As the x-values go to positive infinity, the function’s values go to negative infinity.
The result follows from manipulating the conditional probability. By definition,


By the law of total probability,

So we have

log₉(<em>x</em> - 7) + log₉(<em>x</em> - 7) = 1
2 log₉(<em>x</em> - 7) = 1
log₉(<em>x</em> - 7) = 1/2
Take the base-9 antilogarithm of both sides; in other words, make both sides powers of 9:

can also be written as √9 = 3, and
, so the equation reduces to
<em>x</em> - 7 = 3
Solve for <em>x</em> :
<em>x</em> = 10
Answer:
300ft
Step-by-step explanation:
Answer:
Step-by-step explanation: