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
elena-14-01-66 [18.8K]
3 years ago
13

in two or more complete sentences, explain how to find the interval(s) in which the function f(x) is decreasing and how interval

notation is used to express the interval(s). in your final answer, include the interval in which the function is decreasing.

Mathematics
1 answer:
Irina18 [472]3 years ago
4 0
The function is increasing when the slope is greater than zero and decreasing when the slope is less than zero.  Slope is (y2-y1)/(x2-x1) or the change in y divided by the change in x.

In this case the function is decreasing when x=[-8,-5) and when x=[4,8)

So in interval notation:  x=[-8,-5)U[4,8)
You might be interested in
Rhombus ADEF is inscribed into a triangle ABC so that they share angle A and the vertex E lies on the side BC . What is the leng
Thepotemich [5.8K]

Answer:

Length of side of rhombus is x=\frac{ab}{a+b}  

Step-by-step explanation:

Given Rhombus ADEF is inscribed into a triangle ABC so that they share angle A and the vertex E lies on the side BC. We have to find the length of side of rhombus.

It is also given that AB=a and AC=b

Let side of rhombus is x.

In ΔCEF and ΔCBA

∠CEF=∠CBA        (∵Corresponding angles)

∠CFE=∠CAB        (∵Corresponding angles)

By AA similarity rule, ΔCEF~ΔCBA

∴ their sides are in proportion

\frac{EF}{AB}=\frac{CF}{AC}

⇒ \frac{x}{a}=\frac{b-x}{b}

⇒ xb=ab-ax

⇒ x(a+b)=ab

⇒ x=\frac{ab}{a+b}

Hence, length of side of rhombus is x=\frac{ab}{a+b}  

6 0
3 years ago
What is the answer I need help? <br>PLZ HELP ME
Firlakuza [10]
Use an app called Socratic, take a photo of the questions you're stuck on, then it will help you in stages and show you the answer.

This app gives you *instant* homework answers, all subjects Get it: https://socratic.org/a/p04dj0084n

6 0
3 years ago
What is the solution of the system? Use elimination.
Anit [1.1K]
Note that if we add each side of the 2 equations, y will cancel out:

-12x-y+(17x+y)=6+4

5x=10

x=2


Substituting x=2 in either of the equations, we find the value of y.

Let's use the first equation:

-12x-y=6

-24-y=6

-y=24+6

-y=30, so y=-30.

Thus, the solution is (2, -30)

Answer: C
6 0
3 years ago
What is the fill in the blank answers?
Olenka [21]
Think first is Distributive Property
Combine any LIKE TERMS
Isolate the VARIABLE
By using INVERSE
Check your ANSWER
I think these are the answers hope it helps!
4 0
2 years ago
Pls, help me!
olya-2409 [2.1K]

Answer:

5

Step-by-step explanation:

I assume you are looking for page numbers 5 and less so

1,2 ,3,4,5

the rest of the pages are greater than the number 5

6 0
2 years ago
Other questions:
  • What's te square root of 64
    7·2 answers
  • Think I know this one but could do with some help
    12·1 answer
  • Kevin bought 2 pairs of jeans that were originally $40 per pair but were each marked down by $15 and 3 t-shirts for $12 each. He
    15·1 answer
  • Helpp alsooo pleaseeee !!!!!!
    7·2 answers
  • A vet weighs 2 puppies. The small puppy weighs 2 1/9 a pound. The bigger puppy weighs 1 2/7 times as much as the small puppy doe
    8·1 answer
  • QUESTION NUMBER ONE
    8·1 answer
  • This is 15 points plz help ( no links ) EXPLAIN YOUR ANSWER plz
    14·1 answer
  • Please help! It’s for a test, I’ll also give brainliest!
    7·1 answer
  • 10 4/5+(8 3/4−6 1/2) no files plz you dont have to explain it either
    8·1 answer
  • Please help i’m stuck in this and don’t know what to do
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!