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
Helen [10]
3 years ago
8

In a race in which seven automobiles are entered and there are no? ties, in how many ways can the first three finishers come? in

?
Mathematics
1 answer:
Alinara [238K]3 years ago
7 0

This is a type of permutation problems in statistics. A permutation is a way in which the set of numbers can be arranged or order. In mathematics permutation relates to the act of ordering or arranging all the set of numbers into some sequence or order, or if the set is already in order or arranged its element the process is called permuting. Well, there are seven ways the first place can come in, then 6 ways for a second, and then 5 ways for third... so we multiply the 3 ways to get on how many different ways the first three finishers come in. 7*6*5 = 210 ways

You might be interested in
There are 10 teams in a basketball competition. Each team must play each of the other teams once. How many games will each team
larisa [96]

Two teams can be selected out of 10 teams in C(10,2) = 10!/8! 2! = 45 ways

=> If each team plays exactly 3 matches with each other team, number of matches will be 45 x 3 = 135.

:-)

4 0
2 years ago
Read 2 more answers
Si compro 7 cuadernos y 3 lapiceros  gasto $ 44 Pero si compro 7 lapiceros y 3 cuadernos gasto $ 36 ¿Cuánto cuesta 1 lapicero y
MissTica
Un cuaderno = $5

Un lapicero = $3

7 cuadernos × $5 = $35
3 lapiceros × $3 = $9
$35+$9=$44

7 lapiceros × $3 = $21
3 cuadernos × $5 = $15
$21+$15=$36
5 0
3 years ago
Read 2 more answers
Help me with this please don’t understand need answers please !
umka21 [38]

Answer:

  • see the attached for the sums
  • the magic number (sums of rows, columns, diagonals) is -6

Step-by-step explanation:

The directions tell you what to do and give an example. That work is to be repeated 15 more times. The work is tedious, at best. I found it slightly less tedious to enter the 64 numbers into a spreadsheet and let it do the sums. See the attached for the result.

At the bottom of the array are the sums of columns. At the right are the sums of rows. The upper right and lower left numbers are the sums of the corresponding diagonals.

The "pattern" is that the sums are all -6, which is what you expect from a magic square.

6 0
3 years ago
Jasmine ran 5 miles in 42.5 minutes. Caroline ran 3 miles in 26.4 minutes. Who ran at a faster pace?
nordsb [41]

Answer:

B

Step-by-step explanation:

For this problem, let us find the respective speeds of Jasmine and Caroline and compare the two. All we have to do is divide #minutes by #miles to find the time spent per <u>one</u> mile.

Jasmine:

\frac{42.5}{5} =\\\\

8.5 minutes per mile

Caroline:

\frac{26.4}{3} =\\

8.8 minutes per mile

Since Caroline takes longer to run a mile than Jasmine, We now know that Jasmine ran at a faster pace:

8.8-8.5=0.3

<u>B. Jasmine ran at a faster pace because she ran 0.3 minutes faster per mile.</u>

<u />

<em>I hope this helps! Let me know if you hae any questions :)</em>

3 0
3 years ago
A company rents water tanks shaped like a cylinders. Each tank has a diameter of 12 feet and a height of 3 feet. The cost is $2
12345 [234]

Answer:

\$678.58

Step-by-step explanation:

step 1

<u>Find the volume of the tank</u>

we know that

The volume of a cylinder (water tank) is equal to

V=\pi r^{2}h

in this problem we have

r=12/2=6\ ft -----> the radius is half the diameter

h=3\ ft

substitute

V=\pi (6^{2})(3)=339.29\ ft^{3}

step 2

Find the cost

339.29\ ft^{3}*2\frac{\$}{ft^{3}}=\$678.58

3 0
3 years ago
Other questions:
  • In the diagram below, BD &lt;-&gt; is parallel to XY&lt;-&gt; . What is the value of y?
    12·2 answers
  • a bird that was perched atop 15 and a half door tree dives down six feet to a branch below. how far above the ground is the bird
    13·1 answer
  • Write a statement that describes pi as a ratio
    7·2 answers
  • Mr. Tom gives $30 to Bailey and Jenny. If Bailey gets twice as much money as Jenny how much will Jenny get?
    14·2 answers
  • James has eleven apple and he subtracts and divide how many apples does he have
    12·1 answer
  • A function has f''(x) = 10 and has f'(4) = 0 and f(2) = 4. Find f(x)
    14·1 answer
  • Review the proof.
    5·2 answers
  • You are making punch for a party. You use 6 parts juice for every 1 part soda. You use 18 parts of juice.
    6·2 answers
  • Bal Mukund can do 1/4 of a work can he do in 2 days​
    9·1 answer
  • −9−(−12) as an addition expression
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!