Answer: Ari watched 5/12 of the movie at night.
Step-by-step explanation:
Let x represent the portion of the movie that Ari watched at night.
Ari watched 1 4 of a movie in the morning, and she watched some more at night. It means that the total portion she has watched already is 1/4 + x
The portion of the movie remaining for her to watch is
1 - (1/4 + x) = 1 - (1 + 4x)/4
By the end of the day, she still had 1 3 of the movie left to watch. It means that
1/3 = 1 - (1 + 4x)/4
1/3 = (4 - 1 - 4x)/4
1/3 = (3 - 4x)/4
Cross multiplying by 3, it becomes
1 = 3(3 - 4x)/4
Multiplying through by 4, it becomes
4 = 3(3 - 4x)
4 = 9 - 12x
12x = 9 - 4
12x = 5
x = 5/12
Answer:
first, make a dot on (0,-1)
Then, you draw a line that is -1/2
The way you draw a line explaination:
for every x, you go down and left by half a box.
for example, the next dot is (-1, -1.5)or (-1, -1/2)
and the next point after that is (-2, -1) and so on...
reminder: it goes on forever on both sides!
As you know, the domain is the values "x" can safely take on.
well, for a logarithmic expression, it can never have an expression of 0, namely in this case, x + 4 must never be 0, since such a logarithm doesn't exist.
now, x + 4 = 0 ---> x = -4.
thus if "x" ever becomes -4, we'd end up with log₃(-4+4), or log₃(0), which is a no dice.
so the domain is all values except -4.
Answer:
A
Step-by-step explanation:
The correct answer is C. t= 8ln(100)
Hope this helped! :)
^-^
