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irga5000 [103]
3 years ago
8

What must be true to find the sum of a infinite sequence?

Mathematics
1 answer:
Georgia [21]3 years ago
3 0

Answer:

The series must be decreasing, and the limit as the n-th term goes to infinity should be 0.

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Tina buys a briefcase online for 62.95. If shipping and handling are an additional 20% of the price, how much shipping and handl
Alexxandr [17]

Answer:

Tina will pay $12.95 for shipping and handling.

Step-by-step explanation:

Because you literally just have to multiply $62.95 by .2 and you have your answer.

4 0
3 years ago
Solve each problem and decide which is the best of the choices given.
Nikitich [7]
55 is the answer !!!!
3 0
3 years ago
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Each Friday, the school prints 400 copies of the school newsletter. The equation c = 400w models the relationship between the nu
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the answers are:

D

D

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3 years ago
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The lifetime of LCD TV sets follows an exponential distribution with a mean of 100,000 hours. Compute the probability a televisi
kondaur [170]

Answer:

0.9

0.3012

0.1809

230258.5

Step-by-step explanation:

Given that:

μ = 100,000

λ = 1/μ = 1 / 100000 = 0.00001

a. Fails in less than 10,000 hours.

P(X < 10,000) = 1 - e^-λx

x = 10,000

P(X < 10,000) = 1 - e^-(0.00001 * 10000)

= 1 - e^-0.1

= 1 - 0.1

= 0.9

b. Lasts more than 120,000 hours.

X more than 120000

P(X > 120,000) = e^-λx

P(X > 120,000) = e^-(0.00001 * 120000)

P(X > 120,000) = e^-1.2

= 0.3011942 = 0.3012

c. Fails between 60,000 and 100,000 hours of use.

P(X < 60000) = 1 - e^-λx

x = 60000

P(X < 60,000) = 1 - e^-(0.00001 * 60000)

= 1 - e-^-0.6

= 1 - 0.5488116

= 0.4511883

P(X < 100000) = 1 - e^-λx

x = 100000

P(X < 60,000) = 1 - e^-(0.00001 * 100000)

= 1 - e^-1

= 1 - 0.3678794

= 0.6321205

Hence,

0.6321205 - 0.4511883 = 0.1809322

d. Find the 90th percentile. So 10 percent of the TV sets last more than what length of time?

P(x > x) = 10% = 0.1

P(x > x) = e^-λx

0.1 = e^-0.00001 * x

Take the In

−2.302585 = - 0.00001x

2.302585 / 0.00001

= 230258.5

3 0
3 years ago
If 100% of something is 200 What do you think 110% is? Explain your answer
kupik [55]
110 % of something is 110/100 = 1.1 times that something

so 110%  = 200 * 1.1 = 220 answer
8 0
3 years ago
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