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
anygoal [31]
3 years ago
11

Find the number of the different ways, for 3 students to sit on 7 seats in one row.

Mathematics
2 answers:
qwelly [4]3 years ago
3 0

Answer:

210

Step-by-step explanation:

Here comes the problem from Combination.

We are being asked to find the number of ways out in which 3 students may sit on 7 seats in a row. Please see that in this case the even can not be repeated.

Let us start with the student one. For him all the 7 seats are available to sit. Hence number of ways for him to sit = 7

Let us see the student second. For him there are only 6 seats available to sit as one seat has already been occupied. Hence number of ways for him to sit = 6

Let us see the student third. For him there are only 5 seats available to sit as two seat has already been occupied. Hence number of ways for him to sit = 5

Hence the total number of ways for three students to be seated will be

7 x 6 x 5

=210

natulia [17]3 years ago
3 0
The answer to the question is 210
You might be interested in
A bow is made from 2 2/3 yards of ribbon. Which expression gives the number of bows that can be made from 22 5/8 yards?
iren2701 [21]

Answer:

2 2/3=(6+2)/3=8/3

22 5/8=(176+5)/8=181/8

the  expression will be 181/8 : 8/3=181/8*3/8=181*3/8*8= 543/64

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
*Check Photo
MaRussiya [10]

Answer:

i forgot but i did this earler

Step-by-step explanation:

5 0
3 years ago
I need help with this please
Zina [86]
The answer to this question is b 

3 0
3 years ago
Beth is going to enclose a rectangular area in back of her house. the house wall will form one of the four sides of the fenced i
Alina [70]

The maximum possible area would have a length of 24 feet and width of 12 feet.

<h3>What is an equation?</h3>

An equation is an expression that shows the relationship between two or more numbers and variables.

An independent variable is a variable that does not depend on other variables while a dependent variable is a variable that depends on other variables.

Let x represent the length and y represent the width, hence:

Since beth has 48 ft fencing and cover 3 sides, hence:

x + 2y = 48  

x = 48 - 2y     (1)

Also:

Area (A) = xy

A = (48 - 2y)y

A = 48y - 2y²

The maximum area is at A' = 0, hence:

A' = 48 - 4y

48 - 4y = 0

y = 12 feet

x = 48 - 2(12) = 24

The maximum possible area would have a length of 24 feet and width of 12 feet.

Find out more on equation at: brainly.com/question/2972832

#SPJ1

7 0
1 year ago
Jacob consumes an energy drink that contains caffeine. After consuming the energy drink, the amount of caffeine in Jacob's body
sasho [114]

Answer: 0.87400mg of caffeine.

Step-by-step explanation:

You have

N(t)=N0(e^−rt)(1)

as a general Exponential decay equation where N0 is the amount at t=0, N(t) is the amount remaining at time t and r is the exponential decay constant. You're specifically given that after 10 hours, the decay factor is 0.2601, i.e.,

N(10)/N(0)=N0(e^−10r)/N0(e^0)= e^−10r=0.2601 . .(2)

Taking the last 2 parts of (2) to the power of 0.1t gives

e^−rt=0.2601^.1t . .(3)

This means that

N(t)=N0(e^−rt)=N0(0.2601^.1t). .(4)

Also,

N(2.56)N(1.56)=N0(0.2601.1(2.56))N0(0.2601.1(1.56))=0.2601.1(2.56−1.56)=0.2601^.1

= 0.87400mg of caffeine.

6 0
3 years ago
Other questions:
  • The pentagon PORSTis transformed into POR'ST using which two transformations?
    12·1 answer
  • How many hundredths are egual to six tenths?
    9·2 answers
  • Is this sum rational or irrational? Explain.
    15·1 answer
  • Exact volume please help
    10·2 answers
  • If the equation of a circle is (x - 2)2 (y - 6)2=4, the center is point (2, 6)?
    12·1 answer
  • What is the area of the real object that the scale drawing models?
    8·1 answer
  • Plot all of the existing five features of the following rational function (some may not
    7·1 answer
  • Determine the center and radius of the following circle equation:<br> x2 + y2 + 4x + 20y + 68 = 0
    8·1 answer
  • Mendel is back at it with another genetics experiment. This time he needs to partition a
    12·1 answer
  • Blake can jog 5,000 feet in 10 minutes. If he jogs at the same rate, how many feet can he jog in 16 minutes?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!