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
salantis [7]
2 years ago
10

Let D= {4,7,9} , let E {4,6,7,8}, and let F={3,5,6,7,9}a) find the D U Eb) find the E n F

Mathematics
1 answer:
Juli2301 [7.4K]2 years ago
4 0

the given sets are,

D= {4,7,9} , let E {4,6,7,8}, and let F={3,5,6,7,9}

now,

D U E = { 4 , 6, 7 , 8, 9}

and'

E intersection F = E n F = {6 , 7)

thus, the answer is

D U E = { 4 , 6, 7 , 8, 9} and

E n F = {6 , 7)

You might be interested in
What is the quotient? (9b2 – 3b) ÷ b
rosijanka [135]

Answer:

the answer is

9b²-3b

Step-by-step explanation:

9b-3

7 0
3 years ago
Bob needs to tile his
malfutka [58]

Answer:

143ft

Step-by-step explanation:

12in is 1 foot and 13x11 (11x13) is 143

4 0
3 years ago
A cone and a cylinder have equal radius, r, and equal altitudes, h. If the slant height of the cone is l, then the ratio of the
77julia77 [94]

Given:

radius of cone = r

height of cone = h

radius of cylinder = r

height of cylinder = h

slant height of cone = l

Solution

The lateral area (A) of a cone can be found using the formula:

A\text{ = }\pi rl

where r is the radius and l is the slant height

The lateral area (A) of a cylinder can be found using the formula:

A\text{ = 2}\pi rh

The ratio of the lateral area of the cone to the lateral area of the cylinder is:

\pi rl\text{ : 2}\pi rh

Canceling out, we have:

\begin{gathered} =\frac{\pi rl}{2\pi rh} \\ =\text{ }\frac{l}{2h}\text{  or l:2h} \end{gathered}

Hence the Answer is option B

3 0
1 year ago
Simplify. 6 √20 - 3 √8<br><br> (Please explain the steps so I can better understanding thank you:))
Jet001 [13]

Answer:

to simplify this problem the answer would be 12sqrt5 - 6sqrt2 but I cannot explain it.

Step-by-step explanation:

3 0
4 years ago
Read 2 more answers
Pls helppppp and explain how to answer
34kurt
Well, the place is charging him 115/hr
and he's booked it for 6hrs

how much is going to be his cost? well \bf \cfrac{115}{hr}\cdot 6hr\implies 690

now, there will be 14 teams playing, so... if we divide 690 evenly among the 14 teams, that means each team will need to pay 690/14 about 49.28571 or 49 bucks and 29 cents about

now, if each team pays that much, they'll cover 690, so Dylan has his cost covered, however, for a profit, a profit is surplus, so, in order to make surplus income, or profit, he'll need to charge "more than" 49.29
or he needs to charge "x", whilst    x > 49.29
3 0
3 years ago
Other questions:
  • If quadrilateral ABCD is a parallelogram, what are the correct values for x and y? x = 30, y = 3 x = 30, y = 2 x = 70, y = 2 x =
    11·2 answers
  • The inside dimensions of a box are 12 inches long, 5 inches wide, and 2 inches deep. How many cubic inches does it contain?
    12·1 answer
  • Write the ratio as a fraction is simplest form
    5·2 answers
  • Which person would be eligible to run for president of the United States in the Election of 2020?
    15·2 answers
  •  Please help this is a real school question.      
    12·2 answers
  • A village was founded four hundred years ago by a group of 20 people. In this village, the population triples every one hundred
    6·1 answer
  • Find the measure of angle 3<br> M<br> 1989<br> 3<br> P
    8·1 answer
  • How do you calculate ratios
    13·1 answer
  • HELP!!!! PLEASE!!!!!!!
    12·1 answer
  • Find the exact value of each expression if 0° &lt; θ &lt; 90°
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!