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
Fittoniya [83]
2 years ago
11

I have a question here. ​

Mathematics
1 answer:
aniked [119]2 years ago
5 0

Answer:

3 ways

Step-by-step explanation:

n = 3; r = 2

nC_{r}=\dfrac{n!}{r!(n-r)!}\\\\3C_{2}=\dfrac{3!}{2!1!}=\dfrac{3*2*1}{2*1}=3

You might be interested in
What is the sum of 2/11’ 2/7’ and 1/11’?
pav-90 [236]
Solution

To solve this addition of fractions we are gonna apply the fraction rule which is;

a/c + b/c = (a + b)/c

2/11 + 1/11 = (2 + 1)/11


= (2 + 1)/11 + 2/7

Now add the numerators 2 + 1

= (2 + 1)/11 + 2/7

= 3/11 + 2/7

Now we find the least common multiple

The least common multiple of 11 and 7 is 77.

But before that we cross multiply the numerators.

3 * 7 = 21
2 * 11 = 22

Now the ajustes fraction is;

21/77 + 22/77


Apply the fraction rule which is;

a/c + b/c = (a + b)/c

= (21 + 22)/77

Now we add the numerators.

43/77

Therefore the answer in fraction is 43/77 and in decimal form it is 0.55841
6 0
3 years ago
Kendra washes windows in an office building. She washes 25 of the windows on Monday. She washes 13 of the windows on Tuesday. Wh
Tatiana [17]

Answer:

4/15

Step-by-step explanation:

4 0
3 years ago
How do I solve this??
pshichka [43]
Well, first you should make both sides of the equation to the power of 2. 
So, you'll have 7X = 1225, and then X is 175 :)

Have a wonderful day! 
6 0
3 years ago
Can someone help me on 6?
fomenos

Answer:

66600 ft

Step-by-step explanation:

First draw a rectangle and draw a diagonal line in the middle. The line makes two triangles, and the line itself is the hypotenuse. So, to find hypotenuse, the formula is:

a^2 + b^2 = c^2

The variable c defines the hypotenuse. Therefore:

a = 150

b = 210

Let's solve:

150^2 + 210^2 = c^2

22500 + 44100 = c^2

66600 = c^2

Therefore, in conclusion, the result we are getting is 66600 ft.

<u><em>Hope This Helps!</em></u>

6 0
3 years ago
Read 2 more answers
34 less than the product of 14 and an unknown number is 78
Lubov Fominskaja [6]
34 less than (-34) the product of (multiply) 14 (14) and an unknown (x) is (=) 78 (78)

-34+14 times x=78
14 times x=14x
14x-34=78
add 34 to both sides
14x=112
divide both sdies by 14
x=8
the number is 8
6 0
3 years ago
Read 2 more answers
Other questions:
  • Can you please help please please help me with this question and i will give you a Brainiest
    12·2 answers
  • Solve this equation<br> y= 2x<br> x= -y + 6
    12·1 answer
  • What is the wavelength for radio waves with frequency 3 × 10^9?
    12·1 answer
  • Please help I don't know how to add fractions what is the answer and worked out to the problem 1/3+5/6
    13·1 answer
  • The equation for the line c can be written as y=4x-2. Perpendicular to line c is line d, which passes through the point (-7,-2).
    9·1 answer
  • Which of the following has been charged with complicity in genocidal policies, exacerbating ethnic conflict, increasing economic
    5·2 answers
  • Last year a computer was $350. The computer company raise prices this year and the price has increased by 5%. What was the price
    13·1 answer
  • Find the midpoint between these points.<br> (1,3) (5.1)<br> someone please help asap !!!
    12·2 answers
  • A and B are postive integers such that 1/a + 1/b +1/ab = 1. Find ab
    6·1 answer
  • The price of an item has been reduced by 35%. The original price was 85.
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!