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
Delvig [45]
2 years ago
9

I need help!! ASAP!!

Mathematics
1 answer:
AlekseyPX2 years ago
4 0

9514 1404 393

Answer:

  (2x +1)/(4x^2) . . . . except x=0, -1

Step-by-step explanation:

Addition of fractions works in the usual way:

  a/b +c/d = (ad +bc)/(bd)

Division of fractions works in the usual way:

  (a/b)/(c/d) = (ad)/(bc)

__

  \dfrac{\left(\dfrac{1}{2x}+\dfrac{1}{2x+2}\right)}{\left(\dfrac{2x}{x+1}\right)}=\dfrac{1}{2}\cdot\dfrac{\left(\dfrac{1}{x}+\dfrac{1}{x+1}\right)}{\left(\dfrac{2x}{x+1}\right)}=\dfrac{1}{2}\cdot\dfrac{\left(\dfrac{2x+1}{x(x+1)}\right)}{\left(\dfrac{2x^2}{x(x+1)}\right)}\\\\=\boxed{\dfrac{2x+1}{4x^2}}

The expression is undefined for any denominator equal to zero: x=0 or x=-1.

You might be interested in
A circle with circumference 20 has an arc with 72 degree central angle what is length of the arc
Debora [2.8K]

Answer:

<h2>4</h2>

Step-by-step explanation:

<em>Look at the picture.</em>

<em />

<em>At the beginning we have to calculate what part of the angle 360° is the given angle 75°.</em>

<em />\dfrac{75}{360}=75:360=0.2<em />

<em>The same part of the circumference of the circle is the arc defined by this central angle.</em>

The circumference <em>C = 20</em>.

Therefore

x=0.2\cdot20=4

4 0
2 years ago
What is the second smallest number that has 1,2,3,4,and 5?
n200080 [17]

Answer:

12354

Step-by-step explanation:

The smallest number with 12345  (I am assuming with out decimals) is

12345

If we switch the 5 and 4  we will get the second smallest number

12354

4 0
2 years ago
Read 2 more answers
Recipe calls for two eggs for every half cup of sugar if you use 2 1/2 cups of sugar how many eggs will you need
Gwar [14]
I think you would need ten eggs for 2 1/2 cups of sugar. I might be wrong
5 0
2 years ago
Read 2 more answers
Working alone, it would take Shandra 45 minutes to mow the lawn. To mow the same lawn, also working alone, it would take Kelly 1
Nadusha1986 [10]

Given: Shandra can do the complete work in 45 minutes.

So, Shandra's 1-minute work = 1 / 45  and

Kelly can do the same complete work in 1 hour and 15 minutes = 75 minutes.

So, Kelly's 1-minute work = 1 / 75

Now, we shall calculate Shandra's and Kelly's 1-minute work

By both 1 minute work = (1/45) + (1 / 75) = 8 / 225

∵ 8 /225 Parts can be completed by both = in 1 minute

∴ Complete work (1) can be completed by both = 225 / 8 minutes

or,                                                                           = in 28 minutes and 7.5 second

Hence, the assumption taken by both was incorrect.

The best described time will be 28 minutes and 8 seconds.  

5 0
2 years ago
Read 2 more answers
Calculate A^2, given A=[tex]Given A=[−3 4/-2 0}
MatroZZZ [7]

Answer:

\large\boxed{A^2=\left[\begin{array}{ccc}1&-12\\6&-8\end{array}\right] }

Step-by-step explanation:

A=\left[\begin{array}{ccc}-3&4\\-2&0\end{array}\right]\\\\A^2=\left[\begin{array}{ccc}-3&4\\-2&0\end{array}\right] \cdot\left[\begin{array}{ccc}-3&4\\-2&0\end{array}\right] =\left[\begin{array}{ccc}(-3)(-3)+(4)(-2)&(-3)(4)+(4)(0)\\(-2)(-3)+(0)(-2)&(-2)(4)+(0)(0)\end{array}\right]\\\\A^2=\left[\begin{array}{ccc}1&-12\\6&-8\end{array}\right]

8 0
3 years ago
Other questions:
  • How much greater is the area of a square with a side length of 7 inches than the area of a circle with a radius of 4 inches?
    11·2 answers
  • 22) Which coordinate pair fits the set of coordinates {(0, 4), (-2, 1), (-4, -2)} defined by a linear function? A) (5, 12) B) (6
    11·2 answers
  • You wish to make a triangular garden. One of the angles is 26°. The second angle is complementary to the first angle. What is th
    12·1 answer
  • A local middle school has 99 computers and 333 students. what is the number of students per computer at the school? write your a
    7·1 answer
  • For which values of x is the function f(x)= 4/x not defined?
    8·1 answer
  • A rental car company is running two specials. Customers can pay $40 to rent a compact car for the first day plus $6 for each add
    8·1 answer
  • The diameter of a circle is 15 find the are ? I need help please
    6·2 answers
  • For which of the following counts would a binomial probability model be reasonable? a. The number of traffic tickets written by
    7·1 answer
  • 35 lbs of apples cost $420. <br> How much would 6 lbs cost?
    5·2 answers
  • What is the area of this figure? 3ft 3ft 3ft 11ft
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!