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
77julia77 [94]
3 years ago
8

In how many different ways can 4 students be seated with in a row?

Mathematics
1 answer:
DanielleElmas [232]3 years ago
8 0
<span>4 people seated on a row may have 4! = 4x3x2x1 = 24 different ways to sit.</span>
You might be interested in
Which expression is equivalent to a2 + 2a – 8?
marshall27 [118]

Answer:

D

Step-by-step explanation:

(a+4)(a-2)=a^2+2a-8

a*a=a^2

a*(-2)=-2a

a*4=4a

4*(-2)=-8

a^2-2a+4a-8=a^2+2a-8

4 0
3 years ago
A model rocket is launched with an intitial upupward velocity of 202 ft/s. The rocket’s height h (in feet) after seconds is give
dsp73

Given that the height of a object thrown within a gravitational field is given as a quadratic equation in time, <em>t</em>, the time at which the object is at a specified height can be found by the quadratic formula

The values of, <em>t</em>, for which the height of the rocket is 82 feet are;

t = 12.21 seconds or t = 0.42 seconds

Question: <em>Parts of the question that appear missing but can be found online are (i) To find the values of the time, t, when the rocket's height is 82 feet and round answers to the nearest hundredth</em>

The known parameters of the rocket are;

The initial upward velocity of the rocket, v = 202 ft./s

The given function representing the height, <em>h</em>, (in feet) after <em>t</em> seconds is presented as follows;

H = 202·t - 16·t²

The unknown;

The time for which the height of the rocket is 82 feet

Method;

Substitute H = 82 feet in the height function equation and solve for <em>t</em> as follows;

When H = 82, we get;

82 = 202·t - 16·t²

Therefore;

16·t² - 202·t + 82 = 0

Dividing the above equation by <em>2</em> gives;

(16·t² - 202·t + 82)/2 = 0/2

8·t² - 101·t + 41 = 0

By using the quadratic formula, we get;

\mathbf{t = \dfrac{101 \pm \sqrt{(-101)^2 - 4 \times 8 \times 41} }{2 \times 8}  =  \dfrac{101 \pm \sqrt{8889} }{16}}

Therefore, the values of <em>t</em> given by rounding off to the nearest hundredth are;

t = 12.21 or t = 0.42

The values of the time, <em>t</em>, at which the height of the rocket is 82 feet are t = 12.21 seconds or t = 0.42 seconds

Learn more about equation models of height as a function of time here;

brainly.com/question/84352

7 0
3 years ago
I AM BEGGING, PLEASE HELP ME. CAN SOMEONE PLEASE HELP ME!
Temka [501]

Answer:

37.5

Step-by-step explanation:

180-75 = 105

180 is the sum of all the angle in a triangle

180-105 = 75

75/2 = x becuz the triangle is icoceles

=37/5

Hope this helps :) Giving me brainiest would help a lot :))

8 0
3 years ago
There are 23 perfect tests taken.
Grace [21]

Answer:

92%

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Erika worked 14 hours last week and 20 hours this week. If she earns $9 per hour, how much did she earn these two weeks?
kondor19780726 [428]
If you add 14 and 20 youll get her total amount of hours then you multiply her hours by 9 and your answer is 306%

7 0
3 years ago
Read 2 more answers
Other questions:
  • If (tan^3 theta -1) / (tan theta - 1) - sec^2 theta +1 = 0, find cot theta.
    11·2 answers
  • Can I get an assist...
    7·2 answers
  • ) Kira drew a circle with a radius of 20 inches and then another circle with a radius of 10 inches. What is the approximate diff
    5·2 answers
  • Question:
    5·1 answer
  • Solve for X 7(X-3)+3(4-X)=-8
    8·1 answer
  • Please please helppp me
    9·1 answer
  • Find the HCF of 12;28 and 32​
    6·1 answer
  • Can you guys help me​
    15·1 answer
  • Find the circumference of the pizza to the nearest tenth (10in)
    15·1 answer
  • What is the equation of the line that passes through the point (−1,−5) and has a slope of −3?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!