All categories

3 years ago

What is the meaning of f '' (4) = -4?

Mathematics

2 answers:

borishaifa [10]3 years ago

4 0

Answer:

Step-by-step explanation:

if the second derivative is -4 means that the function is concave down and that at point 4 the function has a maximum

user100 [1]3 years ago

3 0

Hi there!

f''(4) = -4 means that at x = 4, the second derivative is equal to -4. This is equivalent to the instantaneous rate of change of the graph of f'(x) at x = 4 as well.

You might be interested in

Micah places a mirror on the ground 24 feet from the base of a tree. He walks

irina [24]

The height of tree is 8 feet

<h3>Solution:</h3>

Given, Micah places a mirror on the ground 24 feet from the base of a tree

At that point, Micah's eyes are 6 feet above the ground

And he is 9 feet from the image in the mirror.

To find : height of tree = ?

Let "n" be the height of tree

From the question, we can see there is a directly proportional relationship between heights and distances.

Proportional relationships are relationships between two variables where their ratios are equivalent.

$\frac{\text { height of micah eyes above ground }}{\text { distance of micah from mirror }}=\frac{\text { height of tree above the ground }}{\text { distance of tree from mirror }}$

$\begin{array}{l}{\frac{6 \text { feet }}{9 \text { feet }}=\frac{n \text { feet }}{24 \text { feet }}} \\\\ {\frac{6}{9}=\frac{n}{24}} \\\\ {\text { n }=\frac{1}{3} \times 24} \\\\ {\text { n }=8}\end{array}$

Hence, the height of the tree is 8 feet

6 0

3 years ago

If CD = 20 and DE = 17, what is CE? Write your answer as a decimal or integer.

VMariaS [17]

Answer:

Step-by-step explanation:

3 0

3 years ago

−2(25)10x for x=15 URGENT PLS HELP

stepan [7]

Answer:

-7500

Step-by-step explanation:

Given: −2(25)10x

We need to find the value of the given expression at x = 15

So,

−2(25)10x = −2(25)10 * 15

Using the associative property

= (-2 * 25) * (10 * 15)

= -50 * 150

= -7500

7 0

3 years ago

The solutions to the equation -4|x + 9| = -8 are: 7, 11 7, -11 -7, 11 -7, -11

dimaraw [331]

Answer:

option 4

Step-by-step explanation:

Given Equation :-

=> -4| x + 9 | = -8

To FinD :-

=> Solution of the equation .

Solving it :-

=> -4| x + 9 | = -8

=> | x + 9 | = -8/-4

=> |x + 9| = 2

=> ( | x + 9 | )² = 2²

=> x + 9 = ±2

=> x = -9 +2 , -9-2

=> x = - 7 , -11

Option 4 is correct.

5 0

3 years ago

Read 2 more answers

9.3*10^4 over -3*10^11 in scientific notation

trasher [3.6K]

=9.3*10^4 / -3 * 10^11

= -3.1 * 10^-7

4 0

3 years ago