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
Nonamiya [84]
3 years ago
8

Twenty people get into an elevator in a hotel with seven floors, and all of them get off at some point. How many different possi

bilities exist for how the people could get off the elevator? (you can treat the people as indistinguishable for this problem, i.e., for example, if two people get off on the 4th floor, we don’t care which two people they are.)
Mathematics
1 answer:
Fittoniya [83]3 years ago
7 0

Answer:

140

Step-by-step explanation:

you multiply the amount of people by the amount of floors, 7x20=140

You might be interested in
Write an expression that represents the perimeter.
Tatiana [17]
I believe it may be C.
7 0
2 years ago
How much does an ice cream cost with 11 ounces of toppings?
oksano4ka [1.4K]

<em>$3.00 for ice cream </em>

<em> </em>

<em>+ $2.00 for the 4 ounces of toppings </em>

<em> </em>

<em>$5.00 </em>

<em> </em>

<em>hope it helps!!</em>

<em>SMILE!!</em>

4 0
3 years ago
The point R is halfway between the integers on the number line below and represents the number ____. (Use the hyphen for negativ
PSYCHO15rus [73]
I guess ur just gunna have to bear with whatever until we have a multiple choice answer selection.
5 0
3 years ago
What is the expanded form for 298.2?
nydimaria [60]
200+90+8+.02 is the correct answer
4 0
3 years ago
A disk with radius 3 units is inscribed in a regular hexagon. Find the approximate area of the inscribed disk using the regular
Oksi-84 [34.3K]

Answer:

The approximate are of the inscribed disk using the regular hexagon is A=18\sqrt{3}\ units^2

Step-by-step explanation:

we know that

we can divide the regular hexagon into 6 identical equilateral triangles

see the attached figure to better understand the problem

The approximate area of the circle is approximately the area of the six equilateral triangles

Remember that

In an equilateral triangle the interior measurement of each angle is 60 degrees

We take one triangle OAB, with O as the centre of the hexagon or circle, and AB as one side of the regular hexagon

Let

M  ----> the mid-point of AB

OM ----> the perpendicular bisector of AB

x ----> the measure of angle AOM

m\angle AOM =30^o

In the right triangle OAM

tan(30^o)=\frac{(a/2)}{r}=\frac{a}{2r}\\\\tan(30^o)=\frac{\sqrt{3}}{3}

so

\frac{a}{2r}=\frac{\sqrt{3}}{3}

we have

r=3\ units

substitute

\frac{a}{2(3)}=\frac{\sqrt{3}}{3}\\\\a=2\sqrt{3}\ units

Find the area of six equilateral triangles

A=6[\frac{1}{2}(r)(a)]

simplify

A=3(r)(a)

we have

r=3\ units\\a=2\sqrt{3}\ units

substitute

A=3(3)(2\sqrt{3})\\A=18\sqrt{3}\ units^2

Therefore

The approximate are of the inscribed disk using the regular hexagon is A=18\sqrt{3}\ units^2

6 0
3 years ago
Other questions:
  • in a triangle, the measure of the first angle is three times the measure of the second angle. The measure of the third angle is
    5·2 answers
  • Given the function <img src="https://tex.z-dn.net/?f=g%28x%29%3Dm%28-2x%2B2%29%5E5-n" id="TexFormula1" title="g(x)=m(-2x+2)^5-n"
    8·1 answer
  • Please answer this correctly I have to finish the sums by today
    7·2 answers
  • What is 15% of 60? How did you find your answer?​
    12·2 answers
  • Ana, Bill, and Charles are getting ready to pose for a photograph. How many different ways could they line up for the picture so
    14·2 answers
  • The sum of two irrational numbers is rational
    6·1 answer
  • The volume of water in a tank is 0.7 cubic meter. Write this volume in cubic centimeter​
    12·1 answer
  • Wave hits an object as shown.
    12·2 answers
  • 8.2•10^17 and 4.1•10^12
    15·1 answer
  • Angela is riding her dirt bike along a trail. She traveled 24 miles north then traveled 13 miles east. Shestopped for a moment a
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!