400/(1+e^-x)=350
400=350(1+e^-x)
400=350+350e^-x
350e^-x=400-350
350e^-x=50
e^-x=50/350
e^-x=1/7
ln e^-x=ln (1/7)
-x ^(ln e)=ln1-ln7
-x(1)=0-ln7
x=ln7
Answer: x= ln 7 ≈1.94591...
Answer:
you didn't attach a question to answer
Step-by-step explanation:
Answer:
step 1: distribute -1
step 2: combine like terms
step 3: subtract 4 on both sides
step 4: divided both sides by -8, so u can isolate M alone
M=-2
Step-by-step explanation:
The answer is 2x + 6
2x + 2 x 3 (multiply)
= 2x + 6
The function range of {y|y ≤ 5} is f(x)=-(x-4)^4+5.
Since the range has less than a sign, this means that the parabola is
facing downwards and it means that a is negative.
The range is given by

<h3>What is the vertex form of a
quadratic equation?</h3>

Since the range is

This means that k = 5 , and since a is negative
The correct function is

To learn more about the range visit:
brainly.com/question/1579288