What is the answer to 400/(1+e^-x)=350

Answers

the answer is 1030 it's very simple math.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!

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

x= ln 7  ≈1.94591...


Do you know the answer?

Other questions on the subject: Mathematics

The correct answer for the given problem above would be option D. The statement that most accurately describes why the division property of exponents does not apply to the expressi...Read More
2 more answers
Mathematics, 21.06.2019, Erin1535
6,250step-by-step explanation: to get the area, multiply 360 by 160.(57,600)to find out how many bags of fertilizer it will take, first figure out how many square feet one bag can...Read More
1 more answers
option c. measure of the central angleExplanation:1) The ratio of the area of a sector of a circle to the area of th entire the circle is proportional to the ratio of the central a...Read More
3 more answers
The missing statement is Corresponding angles theoremStep-by-step explanation:In this question we are finding the reason for the statement ∠6 ≅ ∠2.We will write the statements and...Read More
3 more answers
Mathematics, 21.06.2019, AliMe52
1st optionStep-by-step explanation:A triangle has vertices at B(-3,0), C(2, -1), D(-1,2). 1. Reflect this triangle across the x-axis according to the ruleThen2. Translate triangle...Read More
2 more answers