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
lesya [120]
3 years ago
11

In an upcoming race, the top 3 finishers will be recognized with the same award. There are 12 people entered in the race.

Mathematics
1 answer:
slavikrds [6]3 years ago
6 0

Answer:

220

Step-by-step explanation:

Given,

The total number of people = 12,

Out of which, top 3 finishers will be recognized with the same award,

So, the total possible way = total combination of 3 people out of 12 people

=^{12}C_3

=\frac{12!}{3!(12-3)!}

=\frac{12\times 11\times 10\times 9!}{3\times 2\times 9!}

=\frac{1320}{6}

=220

Hence, there are 220 ways the top 3 racers can be grouped from the 12 people.

You might be interested in
Suppose 15% of the apples picked one afternoon are rotten.
kow [346]
You answer would be <span>Place 20 equally sized pieces of paper in a hat. Of the 20, 3 read "rotten," and the rest read "not rotten". i just took the test</span>
3 0
3 years ago
Read 2 more answers
The volume of a rectangular prism is 2x^3+9x^2-8x-36 with height x + 2. Using synthetic division, what is the area of the base?
navik [9.2K]

Answer:

Area of the base = 2x^2+5x-18

Step-by-step explanation:

We know that volume of rectangular prism = (Area of base) x (Height)

or [Area of base] = [Volume]/[Height]

So basically we need to divide given area by given height to find the answer.

given height is (x+2) that means (x+2) must be factor of volume equation

or x=-2 must be root of volume equation so write down coefficients of volume equation then we divide by -2 as shown in attached picture.

Last digit on the right is always remainder.

Remaining coefficients {2, 5, -18} will give the area equation: 2x^2+5x-18

Hence final answer is:

Area of the base = 2x^2+5x-18


5 0
3 years ago
Find x in this 45°-45°-90° triangle. x = 4.5√2 9 18
postnew [5]

Answer:

x = 9

Step-by-step explanation:

Using the sine ratio in the right triangle and the exact value

sin45° = \frac{1}{\sqrt{2} } , then

sin45° = \frac{opposite}{hypotenuse} = \frac{x}{9\sqrt{2} } = \frac{1}{\sqrt{2} } ( cross- multiply )

x × \sqrt{2} = 9\sqrt{2} ( divide both sides by \sqrt{2} )

x = 9

5 0
2 years ago
A car manufacturer announced that next year the price of a certain model car would increase by 3.5%. This year the price is $15,
soldi70 [24.7K]

The increase will be the original price x the increase rate.

15649 x 0.035 = $547.72

The new price would be original price + increase

15649 + 547.72 = $16,196.72

3 0
3 years ago
Help pleease waht is .50 as a fraction
GenaCL600 [577]

Answer:1/2

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • What is the length of segment AB?<br> Consider the diagram.<br> 07<br> 09<br> O 18<br> O 25
    12·1 answer
  • How would I solve this problem in steps pls
    12·1 answer
  • Find BD???????????????
    5·2 answers
  • Find the area. and explain step by step please.​
    14·1 answer
  • Find the mean and the median of the data set: 9, 7, 7, 4, 18 , 8, 5, 2,
    7·2 answers
  • Determine whether the following value is a continuous random variable, discrete random variable, or not a random variable.
    9·2 answers
  • Could ya’ll please help me???
    14·1 answer
  • A password for a website must have 4 different digits. What is the probability a password chosen at random is 7654?
    15·1 answer
  • The cost of dog food is 4.39 at this price how much do 11 cans of dog food cost
    13·1 answer
  • Find the service area of a cylinder with a base diameter of 6ft and height of 4ft
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!