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
allochka39001 [22]
3 years ago
15

A colour palette at a paint store has 6 shades of blue. Kelsie is choosing 2 shades of blue to paint her room. How many pairs of

colours can she pick from the colour palette?
A.) 12
B.) 15
C.) 30
D.) 720
Mathematics
1 answer:
Law Incorporation [45]3 years ago
8 0

Answer:

B.) 15

Step-by-step explanation:

The order in which the shades are chosen is not important. For example, choosing powder then sky is the same outcome as choosing sky then powder. So we use the combinations formula to solve this question.

Combinations formula:

C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

C_{n,x} = \frac{n!}{x!(n-x)!}

In this question:

2 shades from a set of 6. So

C_{6,2} = \frac{6!}{2!(6-2)!} = 15

So the correct answer is:

B.) 15

You might be interested in
What is the slope of the line?<br> m =
monitta

Answer:

m=0.25

Step-by-step explanation:

m = (y_2-y_1)/ (x_2-x_1)

Let's get 2 of any coordinates in the graph, for example: (4,2) and (0,1)

m = (1-2)/(0-4) = 1/4 or 0.25

8 0
3 years ago
Sorry for lack of a better picture, I really really need help please!
Black_prince [1.1K]
B. 6.72the answer is B 6.72
4 0
3 years ago
winston earns $140.00 by selling 56 hotdogs at a concession stand at school. by using the same rate for the cost of one hotdog ,
kipiarov [429]
70. 2.50 times 70 would equal 175.
6 0
3 years ago
A triangle has two sides of lengths by7 and 9. What value could the length of
White raven [17]

Answer:

A,b,c,d,e

Step-by-step explanation:

triangle inequality theorem states that the sum of the two sides is greater than the third side

3 0
2 years ago
If an acute angle increases, then its supplement
nevsk [136]

Answer:

gets smaller.

Step-by-step explanation:

Quick Answer

To give you a short quick answer, the supplement is going to have to decrease or get smaller.

Example

Suppose the acute angle is 10 (anything under 90 will do).

Then the supplement is going to be 180 - 10 = 170

Now suppose the acute angle increase to 50 degrees.

That means the supplement will go from 180 - 50 = 130

Conclusion

As the acute angle gets bigger, the supplement gets smaller. This is an important idea to get clear. Bigger and Smaller or More or Less can be ugly little words, so anytime you come across them, pay attention. It will make your life in science so much easier.

6 0
3 years ago
Other questions:
  • Hours of Practice
    13·2 answers
  • Use the matrix tool to solve the system of equations 5x+2y=1 and -x-y=-2
    11·1 answer
  • If you forgot to study for a quiz with 10
    6·1 answer
  • Convert 290 degrees to radians
    5·1 answer
  • Fred and Ben each ran laps around the track. Fred completed his run in 16 minutes. Ben completed his run in 3/4 of the amount of
    9·1 answer
  • A football team lost 5 yards on each of three plays explain how you could use a number line to find the teams change and in fiel
    11·1 answer
  • What is the area of a rectangle 8 units long and 2 units wide?
    6·1 answer
  • What is the value of square root 30 is between witch two integers
    13·1 answer
  • Find the length of the segment indicated. Round your answer to the nearest tenth if necessary
    13·1 answer
  • 11. If 9m - 3 = -318, then 14m = ?<br> a. -28<br> b. -504<br> c. -329<br> d. -584<br> e. -490
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!