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4vir4ik [10]
2 years ago
6

How many orders are possible to view 6 videos from a stack of 8 videos?

Mathematics
1 answer:
irakobra [83]2 years ago
6 0

Answer:

28

Step-by-step explanation:

We know that ,

  • n C r = n! / ( n - r)! r!

  • 8! / ( 8 - 6)! 6!

  • 8! / 2! × 6!

  • 7 × 8 / 2 × 1

  • 28
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\frac{n(n + 1)}{2}

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The incenter of a triangle is the intersection point of the_____ bisectors
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angle

Step-by-step explanation:

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3 years ago
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Please give the right answer and show work if possible
ioda

Step-by-step explanation:

\sin(48)  =  \frac{25}{qr}  \\ qr =  \frac{25}{ \sin(48) }  =  \frac{25}{0.743}  \\ qr = 33.65

6 0
3 years ago
The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes)
saw5 [17]

Answer: $19.6

Step-by-step explanation:

Linear function: f(x)=mx+c

, where  m= rate of change in f(x) with respect to x.

c = Initial value.

Let c = Initial value of card , m= Charge per minute

x= Number of minutes calling time.

Then, 25.06= 38m+c   (i)

21.03=69m+c (ii)

Eliminate (ii) from (i)

4.03=-31m\\\\\Rightarrow\ m=\dfrac{4.03}{-31}\\\\\Rightarrow\ m=-0.13

Put m in (i) , we get

25.06= 38(-0.13)+c\\\\\Rightarrow\ 25.06=-4.94+c\\\\\Rightarrow\ c=25.06+4.94\\\\\Rightarrow\ c=30

i.e. f(x)=-0.13x+30

if x=80 then

f(80)= -0.13(80)+30

=-10.4+30

=19.6

Hence, the remaining credit after 80 minutes of calls = $19.6

7 0
3 years ago
A student has $78 in his checking account. If the student spends $12 on lunch, which number could be combined with the amount le
Alborosie

Answer:

-66

Step-by-step explanation:

There will be $66 left after the $12 spent on lunch. 66 + -66 = 0

7 0
3 years ago
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