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Brrunno [24]
4 years ago
11

Compute the permutation. A chemist has eight test tubes to examine. In how many orders can he do this examination? 16,777,216 20

,160 40,320
Mathematics
1 answer:
Talja [164]4 years ago
6 0

Answer:

40,320

Step-by-step explanation:

He can pick any one of the eight for the first examination.

He can pick any one of the remaining 7 for the 2nd examination.

He can pick any one of the remaining 6 for the 3rd examination.

...

He can pick any one of the remaining 2 for the 7th examination.

There's one left for the 8th examination.

Thus, there are 8×7×6×5×4×3×2×1 = 8! = 40,320 different possible orders in which the tubes can be examined.

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If the price of theater tickets increases at 8% per year, about how long will it take to double the price?
Vladimir79 [104]

Answer:

9\ years

Step-by-step explanation:

Let

P----> the initial price of the ticket

y ---> the price of the ticket after t years

t---> the time in years

we know that

100%+8%=108%=108/100=1.08

so

y=P(1.08)^{t} ----> equation A

If the price is doubled

then

y=2P -----> equation B

equate equation A and equation B and solve for t

2P=P(1.08)^{t}

Simplify

2=(1.08)^{t}

Apply log both sides

log(2)=t*log(1.08)

t=log(2)/log(1.08)=9\ years

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4 years ago
Everly needs to order stock for her store and wants to order the items that have the greatest probability of having repeat custo
Rudik [331]

Answer:

B) National Brand Cereal and Store Brand Crackers

Step-by-step explanation:

Since she wants to order the items that have the greatest probability of repeat customers she needs to order the items with the larger probability. That is National Brand Cereal and Store Brand Crackers

5 0
3 years ago
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What is 4/9 times 1/8
Marysya12 [62]
4/9 times 1/8 is 0.055
5 0
3 years ago
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What value of n makes the equation 4(0.5n − 3) = n − 0.25(12 − 8n) true?
svlad2 [7]

Answer:

n = -9

Step-by-step explanation:

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2n - 12 = 3n - 3

2n - 3n =  - 3 +12

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8 0
2 years ago
What is the domain of the function y= (square root) x+6-7
nikklg [1K]

Answer:

the third choice.  x>_-6

Step-by-step explanation:

1. When you have the square root of (x+6), it shifts the graph 6 units to the left.  

2.  So the x values would start and include -6 and continue growing to the right.

3. So the domain (x values) of the equation is x is greater than or equal to -6

4 0
3 years ago
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