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
Anna [14]
3 years ago
11

The answers to (a)-(d) work is not needed just answers

Mathematics
1 answer:
Debora [2.8K]3 years ago
6 0
A)  n(a) = 25 + 15 = 40
b) n(b) = 42+15 =57
c) n (a U b) = 25 +15+ 42 = 82 
d) n (a') = 42
e) n(b') = 25
f)  n(a intersection b)' =  82-15 = 67 
g) n (a U b)' =     14 
h)  n (a'  intersection  b') =  14
i)  n (a' U b') = 42 + 25 +14 = 81 


hope i helped a bit .. :-)
You might be interested in
Math help please help me with this page
White raven [17]
Please, post just one problem at a time, or (if you post more than one), indicate which one you want to focus on first.  Even more important, please do whatever you can to get started on each problem; I'm sure you know at least some basics.

What does "intersecting" mean?  Look it up if you're not sure.

Then what would "two intersecting lines" look like?  Draw the graph, or at least explain in words what the graph would look like.
5 0
2 years ago
A wool sweater originally costs $42.00. if the sweater is on sale for 25% off, what is the new cost of the sweater? $
jolli1 [7]
42 (1- 25/100) = 63/2  = 31.5 dollars

answer is $31.50 

hope it helps
8 0
3 years ago
Read 2 more answers
A company that manufactures toy trains is making a new boxcar. To fit on the track, the smallest dimension of the toy boxcar mus
pochemuha

Answer:

Length = 12 inches, height = 3 inches

Step-by-step explanation:

First, you have to set up a proportion. 2/7, x/42.

Then, you cross multiply and get the setup of 84=7x

Finally, you divide 84 by 7 and get 12.

12 is the length, and there is no other answer that has 12 in the height. You could just do the same proportion to get 3, though.

8 0
3 years ago
Read 2 more answers
-8x^2+4x+5=0 using quadratic formula
daser333 [38]
So you want to solve for x?

It would be nice if this would easily factor:
(-4x + 5)(2x +1)  = 0    This will not work!

So you need to use the quadratic formula:
a = -8, b = 4, c = 5

x = \frac{-b+/-  \sqrt{b^{2}-4ac} }{2a}

x = (-4 +/- \sqrt{16-4(-8)(5)})/2(-8)
   = (-4 +/- \sqrt{16 + 160})/-16
   = (-4 +\sqrt{176})/-16
   = 1/4 - \sqrt{11}/4

6 0
2 years ago
Help i don’t understand!!!!!!!!!!!!
gogolik [260]
24 because it’s 50 %of them
3 0
3 years ago
Read 2 more answers
Other questions:
  • In the number 4,389, the digit 3 is. times the value of the digit 3 in the number 6,532.
    13·2 answers
  • In A ABC, side AB is included between<br> angles A and C<br> angles B and C<br> angles A and B
    15·1 answer
  • 8 1/3% of 72 plz help im stuck
    14·1 answer
  • Help!!! Please look at the images. 1 and 2 are the most difficult for me.
    5·1 answer
  • What is the measure of the third angle in the similar triangles below?
    14·1 answer
  • What is the width of rectangle if the area is 40 square feet and the length is 8 feet?
    13·2 answers
  • Which is bigger -6 or -8
    5·2 answers
  • I’ll give all my points to the person who gets their right
    14·1 answer
  • Help me with this please!?!?!?!?!
    10·1 answer
  • There are 3 types of gummy bears:
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!