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
Rus_ich [418]
2 years ago
7

Social Sciences teachers are not perfect, but they can all strive to be better.

Mathematics
1 answer:
Dafna11 [192]2 years ago
4 0

Answer:

Successful work of a social science teacher requires the professional knowledge and skills, critical thinking, aim for professional competence development and the following personal teacher qualities: communication skills, creative skills, fast orientation, thoroughness, honesty, diligence, personal responsibility, ...

You might be interested in
Evaluate the absolute value of 60
Otrada [13]
Absolute value is numbers distance from 0 so |60|
8 0
2 years ago
Please,look at this one.
Ket [755]

9514 1404 393

Answer:

  x = √2

Step-by-step explanation:

A graph indicates the only solution is near x=√2.

__

Square both sides, separate the radical and do it again.

  \displaystyle(2-x)\sqrt{\frac{x+2}{x-1}}=\sqrt{x}+\sqrt{3x-4}\qquad\text{given}\\\\(2-x)^2\cdot\frac{x+2}{x-1}=x+(3x-4)+2\sqrt{x(3x-4)}\qquad\text{square}\\\\\frac{(2-x)^2(x+2)}{x-1}-4x+4=2\sqrt{x(3x-4)}\qquad\text{isolate radical}\\\\\left(\frac{(2-x)^2(x+2)-4(x-1)^2}{x-1}\right)^2=x(3x-4)\qquad\text{square}\\\\(x^3-6x^2+4x+4)^2=4(x-1)^2(3x^2-4x)\qquad\text{multiply by $(x-1)^2$}

Now, we can put this polynomial equation into standard form and factor it.

  x^6 -12x^5+32x^4-76x^2+48x+16=0\\\\(x-2)^2(x^2-2)(x^2-8x-2)=0\qquad\text{factor it}\\\\x\in \{2,\pm\sqrt{2},4\pm3\sqrt{2}\}

The original equation requires that we restrict the domain of possible solutions. In order for the radicals to be non-negative, we must have x ≥ 4/3. In order for the left side of the equation to be non-negative, we must have x ≤ 2. So, the only potential solutions will be in the interval [4/3, 2].

The only values in the above list that match this requirement are {√2, 2}. We know that the right side of the equation cannot be zero, so the value x=2 is also an extraneous solution.

The only solution is x = √2.

_____

<em>Additional comment</em>

For solving higher-degree polynomials, I like to use a graphing calculator to help me find the roots. The second attachment shows the roots of the 6th-degree polynomial. They can help us factor the equation. (There are also various machine solvers available that will show factors and roots.)

4 0
3 years ago
Can someone please answer a-d I have 5 mins!!!!<br> 6 points and Brainly:)
Ket [755]

Answer:

a) 12×6=72 cm²

b) 3x6:2= 9 cm²

c) 3x6:2=9 cm²

d) 72-9-9= 54 cm²

5 0
2 years ago
Mike scored 10 points less than twice the
vladimir1956 [14]
Mike = the lowest score possible - 10
Mike = 96
96 + 10 =106.
The answer should be 106.
5 0
2 years ago
Pat bought running shoes for $60. This was four
serg [7]

Answer:

$22.40

Step-by-step explanation:

Set up the equation like this: 2.5x + 4 = 60

Then solve for x.

7 0
2 years ago
Other questions:
  • Solve this equation <br> -6-10a= -156
    7·1 answer
  • Which of the graphs below represent the function f(x) = x3 − 5x2 + 2x + 8? You may sketch the graph to compare. graph going thro
    8·1 answer
  • The solution of the system of equations has coordinates where x is between 2 and 3 and y is between 2 and 3. What is a reasonabl
    13·1 answer
  • Eighty percent of computers sold today are desktops correct decimal that represents the scenario​
    7·1 answer
  • In the first quadrant ,you start at 4,6 and move 3 units right and 1 unit down ,what point will u end up
    6·1 answer
  • Samantha is constructing a door frame with base 30 inches, height 84 inches, and diagonal 91 inches. A sketch of the door frame
    10·1 answer
  • PLEASE ONLY ANSWER IF U KNOW
    15·1 answer
  • What is the equation of the line passing through the points (1, 5) and (0, -3)
    15·2 answers
  • The frequency table shows the scores from rolling dice.<br>Work out the median.​
    8·2 answers
  • Emily's family loves to work together in the garden. They have a slight preference for flowers, as 60%, percent of their plants
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!