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
bogdanovich [222]
3 years ago
9

15 POINTS AND BRAINLY FOR CORRECT ANSWER

Mathematics
1 answer:
hammer [34]3 years ago
4 0

Answer:

The answer is 10.

Step-by-step explanation:

There would be 10 players, 2 for each group, and if each player played every other player twice, then that would mean that 20 matches of chess were played.

Hope this helped!! (:

You might be interested in
Ab= 6cm Ac=12cm <br> Calculate the length of Ad <br> Give your answer to 3 significant figures
Allisa [31]

Answer:

12.686cm

Step-by-step explanation:

By using pythagoras, we can find CB.

We know that a^2+b^2=c^2

Therefore, 12^2-6^2=CB^2

CB=\sqrt{108} (it has to be positive since it is distance)

now we look at triangle BCD and use SOH CAH TOA.

Sin55=CB/CD\\Therefore, CD= 12.686

8 0
3 years ago
-100 - ___= 65<br> A. 35<br> B. 65<br> C. -35<br> D. -165
Softa [21]

Answer:

D

Step-by-step explanation:

If you subtract -165 from -100 you will get 65.

4 0
3 years ago
Find the inverse of the function. <br><br> f(x) = 6x3 - 8
mr Goodwill [35]
Replace <span><span>f<span>(x)</span></span><span>fx</span></span> with <span>yy</span>.<span><span>y=<span><span>6<span>x3</span></span><span>−8</span></span></span><span>y=<span><span>6<span>x3</span></span><span>-8</span></span></span></span>Interchange the variables.<span><span>x=<span><span>6<span>y3</span></span><span>−8</span></span></span><span>x=<span><span>6<span>y3</span></span><span>-8</span></span></span></span>Solve for <span>yy</span>.
<span><span>y=<span><span>3<span>√<span>36<span>(<span>x+8</span>)</span></span></span></span>6</span></span><span>y=<span><span><span>36<span>x+8</span></span>3</span>6</span></span></span>Solve for <span>yy</span> and replace with <span><span><span>f<span>−1</span></span><span>(x)</span></span><span><span>f<span>-1</span></span>x</span></span>.
<span><span><span>f<span>−1</span></span><span>(x)</span></span>=<span><span>3<span>√<span>36<span>(<span>x+8</span>)</span></span></span></span><span>6</span></span></span>
8 0
3 years ago
Read 2 more answers
To raise funds, a school sells raffle tickets to parents and students. The parent tickets cost $6 each and the student tickets c
masya89 [10]

Answer: 312 students purchased a ticket

Step-by-step explanation:

Let x represent the number of raffle tickets sold to parents.

Let y represent the number of raffle tickets sold to students.

The school sold 371 tickets. This means that

x + y = 371

x = 371 - y

The parent tickets cost $6 each and the student tickets cost $1.50 each and the school raised a total of $822. This means that

6x + 1.5y = 822 - - - - - - - -1

Substituting x = 371 - y into equation 1, it becomes

6(371 - y) + 1.5y = 822

2226 - 6y + 1.5y = 822

- 6y + 1.5y = 822 - 2226

- 4.5y = - 1404

y = -1404/-4.5

y = 312

x = 371 - y

x = 371 - 312

x = 59

7 0
3 years ago
1) 16 = 8<br> Why is this wrong?
Dafna1 [17]

Step-by-step explanation:

This is wrong because it can be divided further by table of 8 4 or 2

So if we divide it by 8 the answer is

2 = 1

Now it cannot be divided further so this is the answer

Same is the answer if you divide it by 2 or 4

8 0
3 years ago
Other questions:
  • What is 2÷1/6 in simplest form?
    11·1 answer
  • HELP PLZZ I NEED A MATH EXPERT FOR MATH IN LINEAR FUNCTIONS AND GRAPHS AND NUMBER LINES !!!! ANYONE!
    12·2 answers
  • James read 4 pages in a book in 6 mintes how long would you expect him to take to read 6 pages
    13·1 answer
  • The area of a figure is 64 square centimeters. Suppose the sides of the figure are doubled. What will be the new area of the sim
    7·1 answer
  • You got a job selling books at the mall. You are paid $70 per day plus $2 for each book you sell. Which recursive formula models
    14·2 answers
  • I need to know if I did the tables right.
    11·2 answers
  • What is the final step in solving the inequality –2(5 – 4x) &lt; 6x – 4? x &lt; –3 x &gt; –3 x &lt; 3 x &gt; 3
    9·1 answer
  • Need help! much appreciated
    7·1 answer
  • Teagan was playing Trouble and recorded the number
    10·1 answer
  • When finding the difference between 2.4 and a number, the answer is 1.57. What number should go in the box to complete the subtr
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!