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
larisa86 [58]
3 years ago
15

if you’re good with set theory and word problems in math 30 please help with questions 42 and 43 !! real answers only !!

Mathematics
1 answer:
aleksklad [387]3 years ago
6 0

Answer: 42) 2, 3       43) 144

<u>Step-by-step explanation:</u>

42)

1. n(P) = 8 + 5 = 13 (not 8)                           This statement is False.

2. n(Q but not P) = 9                                   This statement is True!

3. n(neither P nor Q) = 2                             This statement is True!

4. n(Q') --> (n (not Q) = 8 + 2 = 10 (not 8)    This statement is False.

5. P ∪ Q = 8 + 9 - 5 = 12 (not 5)                   This statement is False.

43)

Fill in the Venn Diagram as follows (from left to right):

     M only = 55           --> 89 - (17 + 4 + 13) = 55

       M ∩ E = 17           --> 30 - 13 = 17

       E only =  5            --> 46 - (17 + 13 + 11) = 5

       B ∩ M =  4             --> 17 - 13 = 4

M ∩ E ∩ B = 13           --> given

        B ∩ E = 11             --> 24 - 13 = 11

      E only = 35           --> 63 - (13 + 4 + 11) = 35

<u>(M ∪ E ∪ B)' = 4    </u>        --> given

         Total = 144

You might be interested in
Please how me choose all answers that apply
igor_vitrenko [27]

Answer:A and D

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Percentage:
masha68 [24]
20 percent
If you cross multiply 30 w/ 100 and then divide it by 150 you will get 20.
5 0
2 years ago
a car deceased in value by 25% in the first year. purchased for $28,000, what is the car worth today.
Gwar [14]
Try this:  Principal times (1+interest rate as a decimal fraction)^(number of yrs)

In this case, Principal = $28,000; interest rate = -0.25; # of years = 1

So Decrease in value = $28,000 (0.75)^1 = $21,000.
4 0
3 years ago
Given: MzQVR = 49°
faust18 [17]

Answer:

4. Vertical angles theorem

6. 3x + 4 =49

Step-by-step explanation:

3 0
2 years ago
Identify the expression that is equivalent to cot x/ csc x -1
Yuri [45]
Cotx = cosx/sinx
cscx = 1/sinx

If we plug these into your equation we get:
(cosx/sinx)/(1/sinx) - 1

Dividing by a number is the same as multiplying by its reciprocal so it can be rewritten as:
(cosx/sinx)(sinx) - 1 

The two sinx's cancel each other out so we end up with cosx - 1

8 0
3 years ago
Other questions:
  • 6% of what amount of money is $9?
    11·1 answer
  • why woould you use the associative property of multiplication to solve (10×4) ×2? how would you you regroup the factors?
    11·1 answer
  • Pls help ASAP I need it for tomarrow
    5·1 answer
  • 2. What is the factored form of x2 + 6x + 8?
    15·1 answer
  • Jackie jogs from 11:27 AM until 12:09 PM. For about how long does Jackie jog?
    6·1 answer
  • Write down three integers, all less than 25, whose
    11·2 answers
  • ASSESMENT. Indicate the voltage/resistance reading of the voltmeter/ohmmeter/multimeter below.
    15·1 answer
  • Consider the sets A = {4,6,8} and B = {4,5,6} Find Ax B (b) Find the power set AB)​
    8·1 answer
  • What number would you add to both sides of x² + 7x = 4 to complete the square?
    12·1 answer
  • Many eighteenth- and nineteenth-century Romantic
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!