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
Scorpion4ik [409]
4 years ago
14

Which of the following sets are closed under addition? SELECT ALL THAT APPLY.

Mathematics
2 answers:
vaieri [72.5K]4 years ago
8 0
Polynomials, and Integers, I believe.
Montano1993 [528]4 years ago
7 0

irrational, whole numbers

You might be interested in
the average temperature at the south pole is -45°f. the average temperature on the equator is 92°f. how much warmer is the avera
weeeeeb [17]
That would be a 137 degree difference.
7 0
3 years ago
What is the value of the correlation coefficient r of the data set?
enyata [817]

The correct option will be:  C) 0.84

<u><em>Explanation</em></u>

Formula for Correlation coefficient :

r= \frac{n(\Sigma xy)-(\Sigma x)(\Sigma y)}{\sqrt{[n\Sigma x^2-(\Sigma x)^2][n\Sigma y^2-(\Sigma y)^2]}}

First, for each point(x, y), we need to calculate x², y² and xy .

Then, we will find sum all x, y, x², y² and xy, which gives us Σx, Σy, Σx², ∑y² and Σxy

<em>(Please refer to the attached image for the table )</em>

Here we got, ∑x = 44 , ∑y = 183 , ∑x² = 362 , ∑y² = 6575 and ∑xy = 1480

'n' is the total number of data set, which is 7 here.

So, plugging those values into the above formula..........

r= \frac{n(\Sigma xy)-(\Sigma x)(\Sigma y)}{\sqrt{[n\Sigma x^2-(\Sigma x)^2][n\Sigma y^2-(\Sigma y)^2]}}\\ \\ r=\frac{7(1480)-(44)(183)}{\sqrt{[7(362)-(44)^2][7(6575)-(183)^2]}}\\ \\ r=\frac{10360-8052}{\sqrt{(598)(12536)}}\\ \\ r=\frac{2308}{\sqrt{7496528}}\\ \\ r=0.84

So, the value of the correlation coefficient is 0.84

4 0
3 years ago
Read 2 more answers
Can someone help please?
zalisa [80]

r =  \frac{15}{7}

8 0
2 years ago
Free coins!!!!!!!!Good Morning/Night
geniusboy [140]

Answer:

gm

Step-by-step explanation:

3 0
3 years ago
Please help!! Which of the following is a solution to one of the inequalities graphed below but not a solution to the entire sys
murzikaleks [220]

Answer:

B. (-1,-5)

Step-by-step explanation:

In this graph, the darkest portion represents where the two inequalities intersect with each other. The areas with lighter shading is a solution of one of the inequalities.

From the question we can see that we are looking for which point ends up in the light grey area.

A. (4,-3) White

B. (-1,-5) Light Grey

C. (4,-2) White (This point lies on the inequalities's line. As this line is dotted, the points on it are not included, so this one is white.)

D. (3,1) Dark Grey.

As B is the only one that lies in the light grey area, this is the only correct answer.

7 0
3 years ago
Other questions:
  • Okay google how many pennies are in $25,000
    7·1 answer
  • Jerome has a penny, a nickel, a dime and a quarter. how many different two-coin sums can he make?
    7·1 answer
  • A dripping faucet loses about 2.5×10−42.5×10^−4 liters of water each minute. There are approximately 3×1053×10^5 minutes in a mo
    13·2 answers
  • Evaluate e - 1/2d when e = 15 and f = 2.<br> 10<br> E<br> ERSTE
    6·1 answer
  • How many times does 35 go into 130
    11·1 answer
  • How do i simplify this
    7·1 answer
  • Find the GCF of each expression. Then factor the expression.
    6·1 answer
  • 5. A broken rectangular-shaped window is
    5·1 answer
  • 1-7 blanks it’s due at 12 am plz help!
    8·1 answer
  • 6.318;6.32;6.230;6.108 what is greatest to least
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!