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
9966 [12]
3 years ago
12

I need help with thissss!

Mathematics
1 answer:
ddd [48]3 years ago
7 0

Answer:

I am not completely sure but I think it is 16 or 14

Step-by-step explanation:

Just think it is Im so so so so sorry if I am wrong

You might be interested in
1. In the given figure O is the centre and PQ is the diameter of the circle. if the chord PR is produced to S and QR is joined t
Ksenya-84 [330]

Answer:

90°

Step-by-step explanation:

since PQ is the diameter of the circle, m <em>L</em><em> </em>PRQ = ½ × 180° = 90°.

so, as a supplementary to <em>L</em><em> </em>PRQ, the value of angle QRS = 180 - m <em>L</em><em> </em>PRQ = 180-90 =90°

5 0
3 years ago
There are 8 tennis players in a round robin tournament, which means each team will play every other team once. How many matches
Aliun [14]
<h3>Answer:  28</h3>

==========================================================

Explanation:

Method 1

Imagine a table with 8 rows and 8 columns to represent all possible match-ups. You can actually draw out this table or just think of it as a thought experiment.

There are 8*8 = 64 entries in the table. Along the northwest diagonal, we have each team pair up with itself. This is of course silly and impossible. We cross off this entire diagonal so we drop to 64-8 = 56 entries.

Then notice that the lower left corner is a mirror copy of the upper right corner. A match-up like AB is the same as BA. So we must divide by 2 to get 56/2 = 28 different matches.

----------------------------------

Method 2

There are 8 selections for the first slot, and 8-1 = 7 selections for the second slot. We have 8*7 = 56 permutations and 56/2 = 28 combinations.

----------------------------------

Method 3

Use the nCr combination formula with n = 8 and r = 2

n C r = \frac{n!}{r!(n-r)!}\\\\8 C 2 = \frac{8!}{2!*(8-2)!}\\\\8 C 2 = \frac{8!}{2!*6!}\\\\8 C 2 = \frac{8*7*6!}{2!*6!}\\\\ 8 C 2 = \frac{8*7}{2!}\\\\ 8 C 2 = \frac{8*7}{2*1}\\\\ 8 C 2 = \frac{56}{2}\\\\ 8 C 2 = 28\\\\

There are 28 combinations possible. Order doesn't matter (eg: match-up AB is the same as match-up BA).

Notice how the (8*7)/2 expression is part of the steps shown above in the nCr formula.

7 0
2 years ago
Can you help me on attached picture
saveliy_v [14]

Answer:

its 15 lol

this is elementary school or something???

Step-by-step explanation:

IF

3 * x =9

then do 9/3=3

So you are multiplying by 3

So therefore you would do that to 5 so its 9/15

and 9/15 and 3/5 are the same, just that 9/15 isnt simplified

hope this helps have a nice day!!

3 0
3 years ago
Read 2 more answers
Need help, please answer correctly for branliest!
Dmitry_Shevchenko [17]

Answer:

68 degrees

Step-by-step explanation:

90 - 22 = 68 degrees

when you see the square looking thing it indicated a right angle which is equal to 90 degrees :)

4 0
3 years ago
Read 2 more answers
Please help me, Algebra 1
777dan777 [17]

Answer:

Inflation can be “demand-pull” or “cost-push.” Demand-pull is “good” inflation, the kind of inflation the Fed is trying (and mostly failing) to generate. This is inflation that is caused by rising demand.

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • The five starters on Raylene's basketball team lined up in order of height from shortest to tallest? Which statistic must descri
    5·2 answers
  • (p-3)+(p-7) what is the answer
    6·1 answer
  • A recursive sequence requires you to use previous terms to find the next term. True False
    7·2 answers
  • How would one be able to apply algebra to solve a random number problem?
    13·1 answer
  • If staci correctly evaluates 4×(6+8), what answer will she get?
    6·1 answer
  • If x=3 substitute the value of x into the expression and simplify 3x+6
    13·1 answer
  • What is the missing angle in the triangle?<br><br><br><br> 56°<br><br> 65°<br><br> 86°<br><br> 68°
    11·2 answers
  • What is the length of the hypotenuse?
    15·2 answers
  • I need help with this please!
    13·2 answers
  • Wats 10 to the 2nd power divied by 5 to the 2nd power
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!