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
luda_lava [24]
3 years ago
13

1/(5 + 3sqrt(5))help me plzzzzz​

Mathematics
1 answer:
fgiga [73]3 years ago
4 0

Answer:

sqrt(5)/29

Step-by-step explanation:

1/(5 + 3sqrt(5))

= 1/(5 + 3sqrt(5)) x sqrt(5)/sqrt(5)

= sqrt(5)/(5 + 3 x 8)

= sqrt(5)/ 29

You might be interested in
One positive number is 4 more than twice another. Their product is 198
EastWind [94]

Answer:

\large \boxed{\sf \  \  9 \text{ and } 22 \ \ }

Step-by-step explanation:

Hello,

We can write that, x being the second number

(4 + 2*x) *x = 198

Let's solve this equation.

(4+2x)x=198\\\\4x+2x^2=198 \\\\\text{*** subtract 198 from both sides ***}\\\\2x^2+4x-198 = 0\\\\\text{*** The product of the zeroes is -198/2=-99=-11*9 and their sum is -4/2=-2 ***}\\\\2x^2+4x-198=2(x-9)(x+11)=0\\\\x=9 \ \ or \ \ x=-11

We are looking for positive number so the solution is 9.

And the first number is 4 + 2 * 9 = 4 + 18 = 22

Hope this helps.

Do not hesitate if you need further explanation.

Thank you

3 0
3 years ago
Read 2 more answers
How do you graph 2y+5x=40?
kaheart [24]
To graph this problem you have to place a point on 20 and go down 5 and go over 2 to the right and do the opposite, (5 up over 2 on the left) and then you just connect the dots.
6 0
3 years ago
A hen average of 5.5 eggs each week if she lays a certain numbers a week
irina1246 [14]

Answer:

Step-by-step explanation:

question doesnt make sense

7 0
3 years ago
You are playing a game of Scrabble and have the 5 A tiles, 3 E tiles, 1 Z tile, 2 M tiles, 3 L tiles, and 1 Y tile to choose fro
BigorU [14]
When calculating probability, the easiest thing to do is first count how many things there are to choose from.

5 + 3 + 1 + 2 + 3 + 1 = 15        Also, there are 3 E tiles, and 1 Y tile.  3 + 1 = 4

The probability of you drawing a E or Y tile is 4 / 15
7 0
4 years ago
The potential energy of a 25 kg bicycle resting at the top of a 3 m high hill isj.
tankabanditka [31]
We know that:
Epg=mgh
Epg=25kg*9,81m/s²*3m
Epg=735,75J
4 0
3 years ago
Read 2 more answers
Other questions:
  • Rewrite the expression by collecting like terms
    11·1 answer
  • A scale model of a house is 1ft long. The house is 50ft long. In the model, the window is 6/5in high. How many feet high is the
    7·1 answer
  • Find the value of side A on the right triangle, given that side B = 12 cm and side C = 15 cm. A) 3 cm B) 9 cm C) 25 cm D) 27 cm
    11·2 answers
  • I need help with this question please!
    5·2 answers
  • Need help on this please
    9·2 answers
  • 17. The absolute value of -6 and 6 is
    6·2 answers
  • Plzzzzzzzzzz Hurry I will mark brainliest if you get it right
    11·1 answer
  • Can you write to me explaining this please
    15·2 answers
  • Solve for k<br> p(k + 12) = 8 – 4k
    6·2 answers
  • Please answer PLEASE
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!