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
Veseljchak [2.6K]
3 years ago
15

Please answer my question ​

Mathematics
1 answer:
Aleksandr [31]3 years ago
8 0

Answer:

0.327

Step-by-step explanation:

=> \frac{\sqrt{2}\sqrt{5} -\sqrt{5}  }{2\sqrt{2} }

Let's put all the givens

=> \frac{(1.414)(2.236)-(2.236)}{2(1.414)}

=> \frac{3.162-2.236}{2.828}

=> \frac{0.926}{2.828}

=> 0.327

You might be interested in
Y=x+5 <br> 4x+y=20 <br> show work
evablogger [386]

Answer:

(3,8)

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
The diameters of aluminum alloy rods produced on an extrusion machine are known to have a standard deviation of 0.0001 in. A ran
Murljashka [212]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The null hypothesis is rejected this means that \mu \ne  0.5025

The 95% confidence interval is 0.5045608 <  \mu  < 0.5046392

Step-by-step explanation:

From the question we are told that

The standard deviation is s= 0.0001

The sample size is n = 25

The sample mean is \= x =  0.5046 \ in

The population mean is \mu  =  0.5025 \ in

The null hypothesis is H_o  :  \mu =  0.5025

The alternative hypothesis is H_a  :  \mu \ne  0.5025

The test statistics is mathematically represented as

t =  \frac{0.5046 -  0.5025}{ \frac{0.0001}{\sqrt{25} } }

t =  105

So the p-value from the z-table is mathematically represented as

p-value  =  2 *  P( z >  105)

p-value  = 0.000

seeing that

p-value <  \alpha we reject the null hypothesis

The critical value of

\frac{\alpha }{2} obtained from the normal distribution table is

Z_{\frac{\alpha }{2} } =  1.96

The margin of error is mathematically represented as

E = Z_{\frac{\alpha }{2} }*\frac{s}{\sqrt{n} }

=> E = 1.96 *\frac{0.0001}{\sqrt{25} }

=> E =3.92 *10^{-5}

The 95% confidence level is mathematically represented as

\= x  -  E  <  \mu  < \= x  + E

=> 0.5046  -  3.92 *10^{-5}  <  \mu  < 0.5046  +  3.92 *10^{-5}

=> 0.5045608 <  \mu  < 0.5046392

8 0
3 years ago
.<br> Help please hurry<br> Complete the table by plugging in the X value to solve for the y value
UkoKoshka [18]

Answer:

Y:

-1

0

2

4

Step-by-step explanation:

if I understand correctly, Y= x+4, you should add all the numbers in the X column by 4

Example:

-7

-7 plus 4 would be -3

the reason for this is when adding negative numbers you always go down instead of going up because if you add the way we add normal number then you will keep going deeper into the negative numbers.

Hope this helps!

8 0
3 years ago
LCM and the GCF of 12 and 32?
OverLord2011 [107]
The greatest common factor of 12 and 32 is 4.

The least common multiple of 12 and 32 is 96.

Hope I helped☺☺
7 0
4 years ago
Please help I give 40 points
Komok [63]

sqrt(2x+1) when x=11

sqrt(2*11+1)

sqrt(22+1)

sqrt(23)

4.79583

to the nearest tenth

4.8


sqrt(4x+1) + sqrt(2x) when x=8

sqrt(4*8+1) + sqrt(2*8)

sqrt(32+1) + sqrt(16)

sqrt(33) + 4

5.7446 +4

9.7446

rounding to the nearest tenth

9.7


8 0
3 years ago
Read 2 more answers
Other questions:
  • PLEASE HELP I GIVE THANKS
    15·1 answer
  • What is the solution to the system of equations? {x=5 y=2x−1
    13·2 answers
  • An employee's hourly wage is $17.50 per hour plus $0.75 for each of the q units produced during the hour. Write an algebraic exp
    15·2 answers
  • Help with 18 and 20////::
    6·1 answer
  • What's the correct answer I'm so confused
    12·1 answer
  • . If Henry plays both games conservatively (CC), find the probability that Henry will earn
    11·2 answers
  • Solve A = h (a + b) for b
    13·1 answer
  • you have 3/4 pounds of fudge you split the fudge up into 3 boxes so each box weighs the same how much does each box weigh
    13·1 answer
  • The coefficient in the expression -x - 10 is
    10·2 answers
  • I NEED HELP PLEASEEEE
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!