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
Likurg_2 [28]
3 years ago
7

Rationalise 1/√5 please tell​

Mathematics
1 answer:
Assoli18 [71]3 years ago
6 0

Answer:

Step-by-step explanation:

1/\sqrt{5}

=1\sqrt{5} *\sqrt{5}/\sqrt{5}

=1*\sqrt{5}/\sqrt{5}*\sqrt{5}

=1\sqrt{5}/5

You might be interested in
Help immediately!!!!! What is the average rate
Snezhnost [94]

Answer:

the average rate of change is 4

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Nine voltage measurements in a circuit have produced the following values: 12.09, 12.05, 11.94, 11.99, 12.12, 12.05, 12.02, 11.9
Debora [2.8K]

Answer:

we can not reject any value

Step-by-step explanation: From data we can test the highest and the lowest value to evaluate if one of these values are out of certain confidence Interval

If we established CI = 95 % then  α = 5 % and  α/2 = 0,025

From data we find the mean of the values

μ₀  = 12,03   and σ = 0,07

From z table we find z score for 0,025 is  z(c) = ± 1,96

So limits of our CI are:

12,03 + 1,96 =  13,99

12,03 - 1,96 = 10,07

And all our values are within  ( 10,07 , 13,99)

So we can not reject any value

4 0
3 years ago
For a car moving at a constant speed, the distance traveled varies directly with the time spent driving. If such a car travels 5
GarryVolchara [31]
ANSWER: (8 hours)
, Thank you
6 0
3 years ago
Find three consecutive numbers whose sum is 171.
-BARSIC- [3]
171/3 is 57. the three consecutive numbers are 56, 57 and 58.

244/4 is 61. the even integers are 58, 60, 62 and 64
5 0
3 years ago
Read 2 more answers
Solve in radians help plz
PIT_PIT [208]
I think we can use the identity  sin x/2  = sqrt [(1 - cos x) /2]

cos x -  sqrt3 sqrt ( 1 - cos x) /sqrt2 = 1

cos x - sqrt(3/2) sqrt(1 - cos x) = 1
sqrt(3/2)(sqrt(1 - cos x) =  cos x - 1   Squaring both sides:-
1.5 ( 1 - cos x) = cos^2 x - 2 cos x + 1

cos^2 x - 0.5 cos x - 0.5 = 0 

cos x = 1 , -0.5

giving x = 0 , 2pi, 2pi/3,  4pi/3  ( for  0  =< x <= 2pi)

because of thw square roots some of these solutions may be extraneous so we should plug these into the original equations to see if they fit.

The last 2 results dont fit so the answer is  x = 0 , 2pi Answer
5 0
3 years ago
Other questions:
  • Jackson has a credit card with a 15% interest rate. His dad has a credit card with a 5% interest rate. If they both charge $1,00
    10·2 answers
  • How could you estimate the difference of 6.52 and 6.520
    13·2 answers
  • I forgot how to do these questions<br> HELPPPPPP
    6·2 answers
  • Plot the following radian measures on the given unit circle
    14·2 answers
  • Dash offers and unlimited talk and texting plan for $80 per month AB&amp;C charges $0.20 per text message and $55 for 1,000 min
    14·1 answer
  • this is question What is the place value of the 8 in 4.328 (a)Thousands (b) Hundreds (c)Hundredths (d)Thousandths
    6·2 answers
  • Austin reads 3/4 chapters in 4/5 hours. What is the unit rate.
    13·1 answer
  • A customer deposits $1275 in a savings account that pays 4% interest compounded quarterly. How much money will the customer have
    13·1 answer
  • Help me please!!
    10·2 answers
  • Helppp ..
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!