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
hichkok12 [17]
3 years ago
9

What is the mean absolute deviation for this problem?

Mathematics
1 answer:
Rudik [331]3 years ago
8 0
I can read the whole thing at the bottom 
You might be interested in
John is five years older than his sister. The product of their present ages is 150.
photoshop1234 [79]
Took 3 of us in grade 10 but johns present age is 77.5 and his sister is 72.5
5 0
3 years ago
P(x)= 3x^3-5x^2-14x-4
nexus9112 [7]
   
\displaystyle\\
P(x)=3x^3-5x^2-14x-4\\\\
D_{-4}=\{-4;~-2;~\underline{\bf -1};~1;~2;~4\}\\\\
\text{We observe that } \frac{-1}{3} \text{ is a solution of the equation:}\\
3x^3-5x^2-14x-4=0\\\\


\displaystyle\\
\text{Verification}\\\\
3x^3-5x^2-14x-4=\\\\
=3\times\Big(-\frac{1}{3}\Big)^3-5\times\Big(-\frac{1}{3}\Big)^2-14\times\Big(-\frac{1}{3}\Big)-4=\\\\
=-\frac{1}{9}-\frac{5}{9}+\frac{14}{3}-4=\\\\
=-\frac{6}{9}+\frac{14}{3}-4=\\\\
=-\frac{6}{9}+\frac{42}{9}- \frac{4\times 9}{9}=\\\\
 =-\frac{6}{9}+\frac{42}{9}- \frac{36}{9}= \frac{42-6-36}{9}=\frac{42-42}{9}=\frac{0}{9}=0\\\\
\Longrightarrow~~~P(x)~\vdots~\Big(x+ \frac{1}{3}\Big)\\\\
\Longrightarrow~~~P(x)~\vdots~(3x+1)


\displaystyle\\
3x^3-5x^2-14x-4=0\\
~~~~~-5x^2 = x^2 - 6x^2\\
~~~~~-14x =-2x-12x \\
3x^3+x^2 - 6x^2-2x-12x-4=0\\
x^2(3x+1)-2x(3x+1) -4(3x+1)=0\\
(3x+1)(x^2-2x -4)=0\\\\
\text{Solve: } x^2-2x -4=0\\\\
x_{12}= \frac{-b\pm  \sqrt{b^2-4ac}}{2a}=\\\\=\frac{2\pm  \sqrt{4+16}}{2}=\frac{2\pm  \sqrt{20}}{2}=\frac{2\pm  2\sqrt{5}}{2}=1\pm\sqrt{5}\\\\
x_1 =1+\sqrt{5}\\
x_2 =1-\sqrt{5}\\
\Longrightarrow P(x)= 3x^3-5x^2-14x-4 =\boxed{(3x+1)(x-1-\sqrt{5})(x-1+\sqrt{5})}



7 0
3 years ago
Which equation would help you find the missing side length in the right triangle shown?
irina [24]
Equation a^2 + b^2 = c^2
c = longest side, unknown
The answer is D.
12^2 + 10^2 = c^2
7 0
3 years ago
The graph shows the function f(x) = 2*<br> What is the value of xwhen f(x) = 8?
soldi70 [24.7K]

Answer:

x=3

Step-by-step explanation:

f(x) = 2^x

Let f(x) =8

8 = 2^x

Rewriting 8 as 2^3

2^3 = 2^x

The bases are the same so the exponents are the same

3=x

3 0
3 years ago
Read 2 more answers
What is the best estimate for 1,468
Vanyuwa [196]
The answer would be 1,500 because 68 is higher than 50 so it will round up to 1,500.

3 0
3 years ago
Other questions:
  • The triangle represents the part of a city that is closed to traffic for a parade. Each unit on the coordinate plane represents
    11·1 answer
  • Can you plezzzzzzzzzzzzzzzz help me?
    8·1 answer
  • INT1 4.1.1 Line of Best Fit (classwork)
    8·1 answer
  • Look at the figure: An image of a right triangle is shown with an angle labeled x. If tan x° = e divided by 8 and sin x° = e div
    13·2 answers
  • There are 87 first graders in after care.after 39 students are picked up, the teacher put the remaining students into 4 groups f
    6·2 answers
  • Can someone please help me on this problem :)
    10·1 answer
  • What are the answers to 18-38
    5·1 answer
  • A rectangle is 12 feet long and 5 feet wide. If the length of the rectangle is increased by 25% and the width is decreased by 20
    8·1 answer
  • Plz fast I need it<br>plz plz plz<br>​
    5·1 answer
  • Mrs. McCormick asked students to track the number of times they referred to their planner to check for assignment details during
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!