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
SpyIntel [72]
3 years ago
7

Is 8 over 10 a irrational number

Mathematics
2 answers:
poizon [28]3 years ago
7 0
I don't think so I think it is rational
zmey [24]3 years ago
5 0
<span>rational. an irrational number is something that cannot be expressed by a fraction (i.e., pi) so all whole numbers are rational, as they can be put over 1.</span>
You might be interested in
Please help me! Only have about 10 minutes until I have to submit this assignment!
salantis [7]

Answer:

626

Step-by-step explanation

8 0
2 years ago
Read 2 more answers
12 pls. Dis is due tomorrow I need helppp
givi [52]
Multiplying positive numbers always comes out positive, no matter how many there are.  So you can forget about the positive ones.

Every two negative numbers in a multiplication produce a positive.
Another way to say that is:  If the number of negative ones is EVEN,
the answer is positive, and if it's ODD, the answer is negative.

That monster product of eight numbers in problem #12 will be negative,
because there are an odd amount of negative factors in it.
7 0
2 years ago
Find the mean, variance &amp;a standard deviation of the binomial distribution with the given values of n and p.
MrMuchimi
A random variable following a binomial distribution over n trials with success probability p has PMF

f_X(x)=\dbinom nxp^x(1-p)^{n-x}

Because it's a proper probability distribution, you know that the sum of all the probabilities over the distribution's support must be 1, i.e.

\displaystyle\sum_xf_X(x)=\sum_{x=0}^n\binom nxp^x(1-p)^{n-x}=1

The mean is given by the expected value of the distribution,

\mathbb E(X)=\displaystyle\sum_xf_X(x)=\sum_{x=0}^nx\binom nxp^x(1-p)^{n-x}
\mathbb E(X)=\displaystyle\sum_{x=1}^nx\frac{n!}{x!(n-x)!}p^x(1-p)^{n-x}
\mathbb E(X)=\displaystyle\sum_{x=1}^n\frac{n!}{(x-1)!(n-x)!}p^x(1-p)^{n-x}
\mathbb E(X)=\displaystyle np\sum_{x=1}^n\frac{(n-1)!}{(x-1)!((n-1)-(x-1))!}p^{x-1}(1-p)^{(n-1)-(x-1)}
\mathbb E(X)=\displaystyle np\sum_{x=0}^n\frac{(n-1)!}{x!((n-1)-x)!}p^x(1-p)^{(n-1)-x}
\mathbb E(X)=\displaystyle np\sum_{x=0}^n\binom{n-1}xp^x(1-p)^{(n-1)-x}
\mathbb E(X)=\displaystyle np\sum_{x=0}^{n-1}\binom{n-1}xp^x(1-p)^{(n-1)-x}

The remaining sum has a summand which is the PMF of yet another binomial distribution with n-1 trials and the same success probability, so the sum is 1 and you're left with

\mathbb E(x)=np=126\times0.27=34.02

You can similarly derive the variance by computing \mathbb V(X)=\mathbb E(X^2)-\mathbb E(X)^2, but I'll leave that as an exercise for you. You would find that \mathbb V(X)=np(1-p), so the variance here would be

\mathbb V(X)=125\times0.27\times0.73=24.8346

The standard deviation is just the square root of the variance, which is

\sqrt{\mathbb V(X)}=\sqrt{24.3846}\approx4.9834
7 0
3 years ago
If bill has 300 dresses with a weight of 30 pounds each. How do you find the average weight of all of the dresses with the volum
maria [59]
The answer is 9000 hope this helps
3 0
3 years ago
What is the square root of 100?
natulia [17]

Answer:

10

Step-by-step explanation:

the answer is 10 because 100 divided by 10 is 10

Please mark Brainliest

3 0
2 years ago
Read 2 more answers
Other questions:
  • On Tuesday, Pizza Hut sold 60 plain pizzas at $5 each; 20 meatball pizzas at $8 each; 25 Sicilian pizzas at $9 each; and 33 larg
    11·1 answer
  • Can someone help me with this? Please look at the top, write it in standard form.
    13·1 answer
  • Suppose that you draw two cards from a deck. After drawing the first card, you do not put the first card back in the deck. What
    10·1 answer
  • Can anyone explain this to me??
    6·1 answer
  • What are the intercepts?
    12·2 answers
  • Find the perimeter of the polygon PQR shown in the graph
    13·2 answers
  • Due NOW!!! Please help!
    14·2 answers
  • Cylinder with radius of 5 and height of 4 surface area
    5·1 answer
  • Hamburger is on sale for 20% off the normal $3.70 price. How much can you save per pound by buying the meat on sale? Explain you
    9·1 answer
  • Easy will give brainlest no files.
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!