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
MA_775_DIABLO [31]
3 years ago
6

In how many ways can 7 students be seated at 7 desks?

Mathematics
2 answers:
SCORPION-xisa [38]3 years ago
7 0
If I'm not wrong I believe it would be 343 different ways.
Amanda [17]3 years ago
6 0
Lots of ways it can go on forever


Just be sarcastic ^_^
You might be interested in
Hi this is for texaschic101 mainly but anyone else is fine too.
Makovka662 [10]
Because the two angles on the right add to 180 degrees, we can create this system:

(2x + 25) + y = 180

We can also prove that 3x = 2x + 25, which, when solved, shows that x = 25. 

When plugged in to the original equation, we find that y = 105 degrees. 
5 0
3 years ago
Subtract the binomials. On simplifying (-3y2 − 8) − (-5y2 + 1), we get ____ y2 −______ .
Gala2k [10]
(-3y^2 − 8) − (-5y^2<span> + 1)
= </span>-3y^2 − 8 + 5y^2<span> - 1
= 2</span>y^2 <span>- 9

answer is

</span>2y^2 - 9<span>

</span>
6 0
3 years ago
Read 2 more answers
Newton's law of cooling is:
Mnenie [13.5K]

Answer:

t = \frac{ln(\frac{21}{59})}{-0.15}=6.887 hr

So it would takes approximately 6.9 hours to reach 32 F.

Step-by-step explanation:

For this case we have the following differential equationÑ

\frac{du}{dt}= -k (u-T)

We can reorder the expression like this:

\frac{du}{u-T} = -k dt

We can use the substitution w = u-T and dw =du so then we have:

\frac{dw}{w} =-k dt

IF we integrate both sides we got:

ln |w| = -kt +C

If we apply exponential in both sides we got:

w = e^{-kt} *e^c

And if we replace w = u-T we got:

u(t)= T + C_1 e^{-kt}

We can also express the solution in the following terms:

u(t) = (T_i -T_{amb}) e^{kt} +T_{amb}

For this case we know that k =-0.15 hr since w ehave a cooloing, T_{i}= 70 F, T_{amb}=11F, we have this model:

u(t) = (70-11) e^{-0.15t} +11

And if we want that the temperature would be 32F we can solve for t like this:

32 = 59 e^{-0.15 t} +11

21=59 e^{-0.15 t}

\frac{21}{59} = e^{-0.15 t}

If we apply natural logs on both sides we got:

ln (\frac{21}{59}) =-0.15 t

t = \frac{ln(\frac{21}{59})}{-0.15}=6.887 hr

So it would takes approximately 6.9 hours to reach 32 F.

7 0
3 years ago
Javier and tommy have money in their wallets. The sum of their money is $43. Javier has $11 more than Tommy. How much money do t
Savatey [412]

Answer:

Javier has 27, Tommy has 16

Step-by-step explanation:

43-11=32

32/2=16

16+11=27

Check: 27+16=43

4 0
3 years ago
5x times 4y equal to 3x times 5y
makvit [3.9K]

I’m guessing you want oh know what x and y are?

If so isolate the variable and do the inverse of the operation

If not please correct me ^^

3 0
3 years ago
Other questions:
  • How do different function types compare?
    15·1 answer
  • Help meeeeeeeeeeeeeeeeeeee
    10·1 answer
  • Find 4 consecutive odd integers where the product of the two smaller numbers is 64 less than the product of the two larger numbe
    10·2 answers
  • The function yp=3x2+4x is a particular solution to the nonhomogeneous equation y′′−6y′+9y=27x2−18 Find the general solution of t
    14·1 answer
  • Kamisha is planning to conduct a survey at her school. She has decided to interview 7 out of 30 students. If there are 510 stude
    8·1 answer
  • The radius of a circle is 18 in what is the area and circumference ​
    10·1 answer
  • Algebraic math question
    5·1 answer
  • -10=x/2+6<br> Answers <br> -8 -14 -32 18
    9·1 answer
  • Drag the expressions to the boxes to order them from least to greatest
    12·2 answers
  • PLEASE HELP!!! 25 POINTS!!!
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!