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
Stels [109]
2 years ago
8

Pls send the answer ​

Mathematics
1 answer:
luda_lava [24]2 years ago
4 0

Answer:

a = \dfrac{46}{17}

b = 0

Step-by-step explanation:

\dfrac{2\sqrt{5} + \sqrt{3}}{2\sqrt{5} - \sqrt{3}} + \dfrac{2\sqrt{5} - \sqrt{3}}{2\sqrt{5} + \sqrt{3}} =

= \dfrac{2\sqrt{5} + \sqrt{3}}{2\sqrt{5} - \sqrt{3}} \times \dfrac{2\sqrt{5} + \sqrt{3}}{2\sqrt{5} + \sqrt{3}} + \dfrac{2\sqrt{5} - \sqrt{3}}{2\sqrt{5} + \sqrt{3}} \times \dfrac{2\sqrt{5} - \sqrt{3}}{2\sqrt{5} - \sqrt{3}}

= \dfrac{23 + 4\sqrt{15}}{17} + \dfrac{23 - 4\sqrt{15}}{17}

= \dfrac{46}{17}

a = \dfrac{46}{17}

b = 0

You might be interested in
How many pounds are in 9 kilograms?
Ray Of Light [21]

The answer is 20 pounds

3 0
3 years ago
Please help with this one question that I've been stuck on!!! In a random sample of 74 homeowners in a city, 22 homeowners said
sammy [17]
Niki MANAJ lolllllllll
3 0
3 years ago
Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 kilometres pe
dezoksy [38]

Answer:

1/3 hr or 20 min.

Step-by-step explanation:

Call the trains A and B

Remember d = rt

Distance train A travels is 80t

Distance train B travels is 70t

Now, 80t + 70t = 50

              150t = 50

                    t = 50/150 = 1/3 hr or 20 min.

4 0
3 years ago
Read 2 more answers
Can someone please help me please
Ilia_Sergeevich [38]

Answer: They look the same just one upside down, so I think 127 degrees.

Step-by-step explanation:

8 0
3 years ago
Is 2/8 greater than 8/12
IrinaK [193]
No the 8/12 is the bigger one
8 0
3 years ago
Read 2 more answers
Other questions:
  • I need help in the middle one
    11·1 answer
  • FIRST ANSWER GETS BRAINLIEST ANSWER :
    15·2 answers
  • F n and m are integers and n2 m2 is even, which of the following is impossible?
    11·1 answer
  • F) The marked price of a radio is 25 % above the selling price and the cost pr
    13·1 answer
  • Please help me with this
    10·1 answer
  • liam practiced piano 24 times in 4 weeks. his brother practiced piano 12 times in 14 days. are the rates equivalent?
    14·2 answers
  • What is X divided by Z if X is1/5 and Z is 1/2
    12·1 answer
  • PLS HELP ME I NEED HELP DESPERATELY I ALSO NEEDA SHOW WORK PLS I POSTED THIS QUESTION SM TIMES W OUT NO HELP ME HELP ME
    10·2 answers
  • Of the relation
    10·1 answer
  • If the car spends no time going 35 miles per hour, about how long would the trip take? Round the answer to the nearest hundredth
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!