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
barxatty [35]
2 years ago
8

Pls help someone pls pls help I have exam tomorrow

Mathematics
1 answer:
ladessa [460]2 years ago
4 0

Answer:

n(A \cup \: B) = n(A) + n(B) - n(A \cap \: B)\\ = 9 + 11 - 5 = 15 \\

You might be interested in
Please help... Solve using the quadratic formula x^2 - 6x - 40=0
Tasya [4]
The answer is

X=10 or X= -4
6 0
3 years ago
So this has to do with permutations and honestly I need an explanation on how I can figure these out.
AnnZ [28]
Well, the answer quite simple ....there are 4! ways to arrange these numbers...and as 4! = 4*3*2*1 = 24

hence 24 is the correct answer....


u can also remember it by theorem of multiplication as.....in first place (I.e. first code can be any no. out of 4,5,2&7 ....so 4*.....

as first place is acquired by a certain no. that leaves three no. to fill third place and when third place I'd occupied it leaves 2 numbers to fill second place and lastly only one no. to fill the last place .....so it's result will be like 4*3*2*1.



I know this is pretty much confusing ....but still I tried my best....

if anything troubles u here feel free to ask me
6 0
3 years ago
I need help (please show your work)
oksano4ka [1.4K]

Answer:

the solution is (-4, 3)

Step-by-step explanation:

if you were to graph y = -7/4x - 4 you could plot your first point at (0, -4) and get your second point by going up 7 units (from (0, -4) and to the left by 4

if you were to graph y = -1/4x + 2 you could plot your first point at (0, 2) and get your second point by going up 1 unit (from (0, 2) and to the left by 4

the second point plotted for each equation will be the point of intersection, (-4, 3)

6 0
3 years ago
What Is The Surface Area Of The Rectangular Prism Below 9, 12, 15
Sholpan [36]

There isn't a rectangular prism. Guess 12.

7 0
3 years ago
Read 2 more answers
Which product will be positive?
Sladkaya [172]

Answer:

-7 × (-4) will have a positive product.

Step-by-step explanation:

product of the two number are positive only if the two numbers have the same sign either both (+) or both (-).

and -7 × (-4) = 28.

here 28 is positive.

6 0
3 years ago
Other questions:
  • The area of the base of a square notepad is 2.25 square inches. What is the length of one side of the base of the notepad?
    11·1 answer
  • I'm not very good with square roots. Can someone please explain it to me and help me understand how to do them?
    9·1 answer
  • Amarathon is about 26 miles long. Which of these shows how to convert 26 miles to feet?
    7·2 answers
  • Solve 2 1/4 - 1 2/5=?
    11·1 answer
  • Explain why the square root of 49 has two possible solutions
    9·2 answers
  • If -50c+6=-69, what is the value of 6c-15
    8·1 answer
  • How many times greater is the value of the 7 in 874,699 than the value of
    13·1 answer
  • Please help me with this homework
    12·2 answers
  • Of 5
    14·1 answer
  • What is the slope of the line that connects the points (-1,9) and (3,25)
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!