1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
andreyandreev [35.5K]
4 years ago
9

Find the domain of each function. (Enter your answers using interval notation.)(a) f(x)=8/(1+e^x) .(b) f(x)=5/(1−e^x)

Mathematics
1 answer:
Alexus [3.1K]4 years ago
3 0

Answer:

domain is  (-∞,∞)

(-∞,0) U(0,∞)

Step-by-step explanation:

f(x)=\frac{1}{1+e^x}

The domain is the set of x values for which the function is defined

In f(x) there is no restriction for x. the function is defined for all x values

so domain is  (-∞,∞)

f(x)=\frac{5}{1-e^x}

The domain is the set of x values for which the function is defined

when x=0, e^0=1 that makes the denominator 0

Denominator 0 is undefined. So x cannot be 0

domain is (-∞,0) U(0,∞)

You might be interested in
ABC is a right triangle with AB = AC. Bisector of ∠A meets BC at D. prove that ∆ ABC ≅ ∆DEF
Olegator [25]

Answer:

Triangles ABC and DEF have the following characteristics :B and E are right angles A=D, BC=EF which congruence theorem can be used to prove ABC =DEF

5 0
4 years ago
SOMEONE HELP ME WITH THIS ONE PLZ!
kolezko [41]
To construct a circle that circumscribes to a triangle, you would have to construct a circle that where all vertices of the triangle are on the circle. To do this you would have to construct the perpendicular bisectors of each side with your compass and straight edge. Comment on this answer if you are unsure of how to construct a perpendicular bisect (it's a long fundamental process to describe, and I wouldn't want to lecture you one something you already know). Once you have done so, set your compass point on the point where all perpendicular bisectors intersect (they should intersect in ONE point, if not you will have to redo it). Set your other compass lead on one of the vertices and spin away! If you have done this correctly, you should hit all three vertices when spinning your compass. Hope this helps!

Fun fact: the point where all perpendicular bisectors intersect is called the circumcenter
3 0
3 years ago
Daniel had a small bag of erasers. The bag contained 15 blue, 10 purple, 8 yellow, 13 green, and 4 red erasers. He picked one of
worty [1.4K]
<span>the probability for a purple is 10 </span>
5 0
3 years ago
Read 2 more answers
A basketball is dropped from a height of 330 feet. The function f(x) =330 (0.4)x gives the height of each bounce, where x is the
faust18 [17]

Answer:

idk

Step-by-step explanation:

i 123456788==3-4=2-5=06=20=0-54092=

Dont know 125887q2=5268-2654&+^[email protected]+^25^5#1=^5=2+56=426+

7 0
3 years ago
3+2⋅[(2+1)⋅5+8] need the answer please
s2008m [1.1K]

Hey!

----------------------------------------------

Solution:

Remember to follow PEMDAS!

= 3 + 2 ⋅ [(2 + 1) ⋅ 5 + 8]

= 3 + 2 ⋅ [(3) ⋅ 5 + 8]

= 3 + 2 ⋅ [(15) + 8]

= 3 + 2 ⋅ [23]

= 3 + 46

= 49

----------------------------------------------

Answer:

49

----------------------------------------------

Hope This Helped! Good Luck!

8 0
3 years ago
Read 2 more answers
Other questions:
  • F(-4) for f (x) = -4x+9<br>f(-4)=?
    7·1 answer
  • Can some one please help meee with a-c
    12·1 answer
  • Square root of 98k???
    8·1 answer
  • True/False: A graph of a trapezoid can have two pairs of adjacent sides that are congruent.
    5·1 answer
  • PLZ PLZ PLZ ANSWER THIS I HAVE NO IDEA WHAT RATIOS ARE!!!! <br> I WILL MARK THE BRAINLIEST!!!
    13·2 answers
  • I need help i am very confused
    13·1 answer
  • Which factors of -24 are used to factor x^{2}+2x-24
    11·1 answer
  • Jetpack flyer recently landed in LA (230, 20). He found out his target is in San Francisco (40, 220). His jetpack can go 250 mil
    9·1 answer
  • Solve for the value of x.<br> ABC<br> 20<br> 28<br> 9x-8
    14·1 answer
  • Which is the least common multiple of 5 12 15
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!