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
nlexa [21]
3 years ago
10

For which intervals the graphs of the functions f(x) = x^3 + x^2 - 4x - 4 is positive

Mathematics
1 answer:
Nookie1986 [14]3 years ago
5 0

Step-by-step explanation:

Consider a function

f

(

x

)

which is twice differentiable. The graph of such a function will be concave upwards in the intervals where the second derivative is positive and the graph will be concave downwards in the intervals where the second derivative is negative. To find these intervals we need to find the inflection points i.e. the x-values where the second derivative is 0.

You might be interested in
The lunch lady had 5 pound of lasagna. If she makes 1/4-pound servings using this amount of lasagna, how many servings can she m
jekas [21]
She could make 20 servings of lasagna.

There are 4 servings per pound of lasagna, and there are 5 pounds total.
4 x 5 = 20
6 0
3 years ago
-0.38 written as a fraction the 8 is a repeating decimal
Simora [160]

Answer:

\frac{-7}{18}

Step-by-step explanation:

The line in between the numerator and denominator serves as a division sign so, -7 divided by 18 equals -0.38 with the 8 repeating

8 0
3 years ago
Write an equation in slope-intercept forra for the line that passes through (1, - 2) and (3, 7)
Llana [10]

Answer:

y = 9/2x -6.5

Step-by-step explanation:

m = (7-(-2))/(3-1)

m = 9/2

b = -6.5

y = 9/2x -6.5

5 0
3 years ago
A 33 gram sample of a substance that's
Mazyrski [523]

9514 1404 393

Answer:

  6.2

Step-by-step explanation:

We presume your "k-value" is the k in the exponential decay term ...

  e^(-kt) . . . where t is the number of time units

This is 1/2 when ...

  ln(1/2) = -kt

  t = ln(1/2)/(-k) = ln(2)/k

  t = 0.69315/0.1124 ≈ 6.2

The half life is about 6.2 time units.

6 0
2 years ago
The height of a tree is 8.194 meters.What is the height rounded to the nearst tenth of a meter?
Elan Coil [88]
SOLUTION:

Height of tree = 8.194 metres

Height of tree = 8.2 metres ( to the nearest tenth of a metre )

Therefore, the answer is:

The height of the tree is 8.2 metres when rounded to the nearest tenth of a metre.

Hope this helps! :)
Have a lovely day! <3
3 0
3 years ago
Other questions:
  • Help!!!!!!! Thank you!!!!!!!
    9·2 answers
  • Complete the proof of the Law of Sines/Cosines.
    13·1 answer
  • The ratio of the number of model cars that Jim owns to the number of model cars Terrance owns 4 : 3 Terrance owns 36 model cars.
    7·1 answer
  • The value of y varies directly with x, and y = 63 when x = 14. Find y when x = 28. I have been stuck on this for a while...
    8·1 answer
  • What is the inverse of the function f(x) = 2x + 1?
    9·2 answers
  • A bank loaned out 17000 part of it at the rate of 7% per year and the rest 15% per year. If the interest received in one year to
    14·1 answer
  • Can someone help? I’m almost done with this class.
    7·1 answer
  • Tony is saving money to buy a game. So far he has saved S18, which is two-thirds of the total cost of the game. How much does th
    13·1 answer
  • On Rhombus WXYZ,if W is located at (-5,-2) and Y is located at (3,-2), what is the slope of XZ?
    7·1 answer
  • (a) Laura owns 6 shares of a certain stock. Yesterday the total value of her shares went down by
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!