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
IRISSAK [1]
4 years ago
12

How would the fraction

Mathematics
2 answers:
Bumek [7]4 years ago
8 0

Answer:

A. {-\frac{5+5\sqrt 3 }{2}}

Step-by-step explanation:

Please wait for more explanation:

\frac{5}{1-\sqrt 3}=  \frac{5}{1-\sqrt 3}\times  \frac{1+\sqrt 3}{1+\sqrt 3}\\\\= \frac{5(1+\sqrt 3) }{1^2 -(\sqrt 3) ^2}\\\\= \frac{5+5\sqrt 3 }{1 -3}\\\\= \frac{5+5\sqrt 3 }{-2}\\\\=\huge\purple {\boxed {-\frac{5+5\sqrt 3 }{2}}} \\

aleksley [76]4 years ago
5 0

The differences of squares:  a² - b² = (a - b)(a + b)

at denominator we have:  a - b  and we want:  a² - b²

so we need to multiply by (a+b)  {both denominator and nominator!}

\dfrac5{1-\sqrt3}=\dfrac{5(1+\sqrt3)}{(1-\sqrt3)(1+\sqrt3)}=\dfrac{5(1+\sqrt3)}{1^2-(\sqrt3)^2}=\dfrac{5+5\sqrt3}{1-3}=\dfrac{5+5\sqrt3}{-2}=-\dfrac{5+5\sqrt3}{2}

The answer is  A

You might be interested in
Pllllsssss help I’m having trouble
Mice21 [21]

Answer:

that would probably be

Step-by-step explanation:

40

7 0
3 years ago
Https://brainly.com/question/22777864 pls help
Angelina_Jolie [31]

Answer:

hey

Step-by-step explanation:

3 0
3 years ago
3. The temperature of a swimming pool
Anastaziya [24]

Answer:

81 F

Step-by-step explanation:

Hours | Temp.

   0     | 75F

   1      | 77F

   2     | 79F

   3     | 81F

4 0
3 years ago
a rectangle has an area of 240 square centimeters and a length of 32 centimeters. what is the width of the rectangle? use the fo
oksano4ka [1.4K]

Answer:

7.5

Step-by-step explanation:

8 0
3 years ago
3.5 x 10^4 write the following number in standard form (decimal).
Vilka [71]

Answer:

35,000

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • If you were to solve the following system by substitution, what would be the best variable to solve for and from what equation?2
    15·1 answer
  • Chase and Sara went to the candy store. Chase bought 5 pieces of fudge and 3 pieces of bubble gum for a total of $5.70. Sara bou
    12·1 answer
  • How can I write a polynomial equation with the x-intercepts -3,1,3 with all odd multiplicities, and with a y-intercept of -1?
    10·1 answer
  • To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of
    9·1 answer
  • For which of the following graphs would it NOT make sense to connect the points? a. a graph showing the temperature each hour ov
    12·1 answer
  • 2 x L = 4<br><br> What's the value of L?
    12·2 answers
  • I need help please if you know help me with this, thanks
    5·2 answers
  • I’m just basically going to need help on all these linear equations questions i have
    12·2 answers
  • To track the reptile population around a lake, researchers marked 36 turtles. A few weeks later, they counted 400 turtles, of wh
    11·1 answer
  • How do I solve this equation?
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!