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
Soloha48 [4]
3 years ago
13

Consider f(x)=4-e^x

Mathematics
1 answer:
Gennadij [26K]3 years ago
3 0

\bf \textit{Logarithm Cancellation Rules} \\\\ log_a a^x = x\qquad \qquad a^{log_a x}=x \\\\[-0.35em] \rule{34em}{0.25pt}

\bf f(x) = 4-e^x \\\\[-0.35em] ~\dotfill\\\\ \stackrel{\textit{when it crosses the x-axis, y = 0~\hfill }}{0 = 4-e^x\implies e^x=4\implies \ln(e^x)=\ln(4)\implies x=\ln(4)}~\hfill \boxed{(\stackrel{x_1}{\ln(4)}~~,~~\stackrel{y_1}{0})} \\\\[-0.35em] ~\dotfill\\\\ A)\\\\ \left. \cfrac{df}{dx}=0-e^x\right|_{x= \ln(4)}\implies -e^{ln(4)}\implies -e^{\log_e(4)}\implies -4 \\\\[-0.35em] ~\dotfill\\\\ B)\\\\ y-0=-4[x-\ln(4)]\implies y=-4x+4\ln(4)

You might be interested in
How do I find the average rate of change?​
Alenkasestr [34]

Answer:

add them all up together and then divide by the number of items

Step-by-step explanation:

8 0
3 years ago
Graph the line y=-1/6+1 , I need help tho :/​
Rashid [163]

Answer:

Step-by-step explanation:

6 0
3 years ago
A group of 15 people are going to run a race. The top 8 will advance to the finals. Determine if the situation is a permutation
LUCKY_DIMON [66]

For the given situation we have a total of 259,459,200 permutations.

<h3>How many permutations are?</h3>

First, how we know that it is a permutation?

Because the order matters, we aren't only selecting 8 out of the 15 people, but these 8 selected also have an order (is not the same thing to finish the race first than fourth, for example).

Then we need to find the number of permutations, to do it, we need to find the numbers of options for each of the 8 positions.

  • For the first position there are 15 options.
  • For the second position ther are 14 options (one runner already finished).
  • For the third position there are 13 options.
  • And so on.

Then the total number of permutations (product between the numbers of options) is:

P = 15*14*13*12*11*10*9*8 = 259,459,200

If you want to learn more about permutations:

brainly.com/question/11732255

#SPJ1

8 0
2 years ago
Expand <br><br> 2y (2y + 8 )
Andrews [41]
Hello There!

2y x 2y = 4y²
2y x 8 = 16y.
Put it together and you get the answer of:
4y² + 16y.

Hope This Helps You!
Good Luck :) 

- Hannah ❤
7 0
3 years ago
Solve the inequality for u.<br> .<br> Simplify your answer as much as possible.
Jet001 [13]

Answer:

u ≤ 4

Step-by-step explanation:

The given inequality

15 ≤ 39 - 6u

Subtract 39 from both sides, we get

15 - 39 ≤ 39 - 6u - 39

-24 ≤ -6u

Dividing both sides by -6, we get

4 ≥ u                      [Remember, when we divide by negative, the direction of    

                              the inequality changes]

Which is u ≤ 4.

Thank you.

3 0
3 years ago
Read 2 more answers
Other questions:
  • Question 1(Multiple Choice Worth 1 points) (01.02 MC) Bruno bought 96 pounds of sugar for his bakery. Every day he used the same
    11·1 answer
  • Find the values of y = r(x) = ∛x for
    12·1 answer
  • A binomial random variable X is defined as the number of successes achieved in the n trials of a Bernoulli process. Describe an
    9·1 answer
  • Make a t<br> Rectangle drawing to represent each excediste. Then find the product.
    6·1 answer
  • Given m||n, find the value of x.
    14·1 answer
  • Liam bought snacks for his team's practice. He bought a bag of oranges for $2.13 and a 3-pack of juice bottles. The total cost b
    7·1 answer
  • 1. Solve: 9^2x + 1 = 9^3x – 2
    10·2 answers
  • Joe makes an hourly wage of $14.00. Last week, Joe worked 58 hours.
    12·2 answers
  • 1. 4(x-3)=-24<br>2. 5(x+3)=30<br>solve for x​
    13·2 answers
  • A=1/2h(B+b);A=81,B=8,b=1 what is h
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!