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
bixtya [17]
3 years ago
14

Help would be much appreciated

Mathematics
1 answer:
Sauron [17]3 years ago
4 0

Answer:   1.9

<u>Step-by-step explanation:</u>

f(3) means replace "x" with 3.

f(x) = \dfrac{14}{7+2e^{-0.6x}}\\\\\\f(3)= \dfrac{14}{7+2e^{-0.6(3)}}\\\\\\.\qquad=\dfrac{14}{7+2e^{-1.8}}\\\\\\.\qquad=1.9\qquad \text{you need to use a calculator}

You might be interested in
A ladder leans against the side of a house. The angle of elevation of the ladder is 64 degrees
ValentinkaMS [17]

Answer:

The length of the ladder is 14.5 ft

Step-by-step explanation:

For a right triangle

sinx = opposite / hypotenuse

Since we know the angle and the opposite side, we can calculate the hypotenuse

sin 64 = 13/ hypotenuse

Multiply each side by the hypotenuse

hypotenuse * sin 64 = 13

Divide by sin 64

hypotenuse = 13/sin 64

hypotenuse=14.4638

Rounding to the nearest tenth

14.5

5 0
3 years ago
Ryan bought 6 apples and 9 peaches for a total of $7.86. Maya bought 4 apples and 5 peaches for $4.82. How much are apples and p
nekit [7.7K]
Apples are $0.68 and peaches are $0.42.

To find these values, we need to write and solve the following system of equations.

6x + 9y = 7.86
4x + 5y = 4.82

Multiply the first equation by 2 and the second by -3.

12x + 18y = 15.72
-12x - 15y = 14.46

Add the equations together.
3y = 1.26
y = 0.42

Sub in 0.72 and solve for x in either equation and you will get x = 0.68.

5 0
3 years ago
Does 3u+40+2u=6u-30-u have no solution
Bad White [126]
Yes you are correct! It doesn't have a solution which means no solution, hope this helps! :D
8 0
3 years ago
Read 2 more answers
X²=14x-45 step by step please
dolphi86 [110]

Answer:

X=9 and X=5

Step-by-step explanation:

So you want to get one side to equal zero so you can factor and find x. I recommend subtracting 14x and adding 45 to both sides so you don't have to deal with a negative quadratic.

X^2 - 14X +45 = 0

Now you can factor. Your looking for two factors that equal 45 and add to -14

All factors of 45:

1 and 45, 3 and 15, 5 and 9, -1 and -45,

-3 and -15, -5 and -9

So out of those combinations -5 and -9 both multiply to 45 and add up to -14 so these are our common factors

(X-5)(X-9)=0

X-5=0 add 5 to both sides X=5

X-9=0 add 9 to both sides X=9

5 0
3 years ago
HELP ASAP (1O BRAILY/POINTS FOR ANSWER)
shutvik [7]

Step-by-step explanation:

x + y = 3 ---------------- eqn 1

y = -6x + 3 ------------- eqn 2

Substitute y for -6x + 3 in equation 1

x + -6x + 3 = 3

x - 6x + 3 = 3

-5x + 3 = 3

Collect like terms

-5x = 3 - 3

-5x = 0

Divide both sides by -5

x = 0

Hope this helped!

5 0
3 years ago
Read 2 more answers
Other questions:
  • a passenger train leaves a train depot 2.5 after a freight train leaves the same depot the passenger train is traveling 13 mph f
    5·1 answer
  • Can someone PLEASE answer this question (picture above)
    13·1 answer
  • a boy is standing 180 metres from the base of a tree. the angle of elevation to the top of the tree is 40°. what is the height o
    12·1 answer
  • If RS=ST then point S is called the midpoint of RT
    10·1 answer
  • Which graph shows the solution to the inequality –0.5x ≤ 7.5? A number line going from negative 18 to negative 8. A closed circl
    11·2 answers
  • These is the numbers 16-21
    9·2 answers
  • If 3g - 11 + 3y, what is the value of y when g is 12?
    15·2 answers
  • Find the equation of the straight line graph y= mx-6
    11·1 answer
  • Identify the bases and faces, and then the name of the given figure.
    15·1 answer
  • Does anyone know the answer to this?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!