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
bonufazy [111]
3 years ago
8

What is the value of R in this circuit

Mathematics
1 answer:
goblinko [34]3 years ago
5 0

See that messy ugly fraction on the right side of the equation ?  Let's make it easier to write.  

If we multiply the top and bottom of the fraction by the same thing, we won't change the value of the fraction.  Let's multiply top and bottom by <em>R</em> .

The fraction 1 / (1/R + 1/2R)

Multiply top and bottom by R :

The fraction = R / (1 + 1/2) .  

But that's just  R/1.5 .

So 20 = R/1.5

Multiply each side of this equation by 1.5 , and you have . . .

<em>30 = R</em>

<em></em>

This is not even a problem about electrical circuits or resistors.  This is a problem about handling complicated fractions to make them less messy.

You might be interested in
Answer!!!!! Help!!!
guajiro [1.7K]

Answer:

The answer is postulate

7 0
3 years ago
the midpoint of a horizontal line segment is at x=1 if the length of the line segment is 10.5. what absolute value equation coul
egoroff_w [7]

Answer: -4.25 ≤ x ≤ 6.25

Step-by-step explanation:

The midpoint of a segment is located at the same distance of each of the endpoints of the segment.

The midpoint is at x = 1.

The length of the segment is 10.5, if we divide it by two we have:

10.5/2 = 5.25

Now, if we want the endpoints to be at the same distance of the midpoint, then the endpoints will be:

Xmax = midpoint + 5.25

Xmin = midpoint - 5.25

Then the extremes are:

Xmax = 1 + 5.25 = 6.25

Xmin = 1 - 5.25 = -4.25

Then this segment can be written as:

Xmin ≤ x ≤ Xmax

-4.25 ≤ x ≤ 6.25

8 0
3 years ago
Which collection of three side lengths will not form a triangle
dezoksy [38]

Answer:

Any collection of lengths (a, b, c) which do not satisfy the triangle inequalities.

Step-by-step explanation:

Any collection (a, b, c) which do not satisfy the triangle inequalities. The inequalities:

a + b > c

b + c > a

a + c > b

You will need to test all of your options on the three inequalities above. If any one of the three fails, the collection won't work.

4 0
3 years ago
Neeeeed help please
Nikolay [14]
A nice riddle, mathematical riddle.

Assuming a turtle winning means the declared winner is the weaker one actually won over the stronger one.  In this context, the turtle winner is the one who has a lesser number of favourable votes.

The given rules for the points are as follows:
1. Point for the first choice must be greater than or equal to that of the second choice.
2. All points must be positive whole numbers.

Let's suppose we have Henry against Tim.
Henry is favourite of the voters and is the leading candidate, according to popular polls.
Tim is an excellent manipulator, sly, and everybody knows this.

On polling day, the vote count came out as follows (in point counts)

Henry      Tim
2              1
2              1
2              1
2              1
2              1
2              1
10            1  (Henry's own vote)
1          100  (Tim's own vote)
------------------
17        107  TOTAL POINTS

So Tim the turtle was declared winner of the race, and since everything was according to rule, even a recount of the votes did not change the results.

Be aware, voting by districts (instead of popular votes) also exhibits a similar problem.



3 0
3 years ago
Read 2 more answers
Anna makes 120 dolls each month to sell. This month, she increases the number of dolls she makes by 30%. How many dolls does Ann
scoray [572]
120 * .30 (30%) = 36
120+36 = 156
4 0
3 years ago
Other questions:
  • How to find the slope intercept form of the equation using another line in slope intercept form and a point for the line?
    6·1 answer
  • Which is the graph of g(x) = 2x – 1 + 3?
    9·1 answer
  • Help Would Be Greatly Appreciated :)
    12·1 answer
  • How do you combine like terms​
    11·2 answers
  • Denver, Colorado often experiences snowstorms resulting in multiple inches of accumulated snow. During the last snow storm, the
    9·1 answer
  • Genevieve forgot the last two digits of her four-digit locker code: 21?? If the number is divisible hy 5,6, and 7, what is Genev
    13·1 answer
  • Write a mathematical equation that fits each word problem
    12·2 answers
  • I need help there is a stalker
    10·1 answer
  • Help me please number 3
    13·1 answer
  • Pick the correct answer<br> Help me please thank you :)
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!