3 years ago

Emily has $15 to buy apples. Apples

Mathematics

1 answer:

Maru [420]3 years ago

6 0

Answer:

You need to know the amount of apples that are in each bag.

Step-by-step explanation:

You never know, Emily could even be making you an apple pie right now...

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Susan was writing a paper for English, and she thought it was going to take her 4 hours to write. In fact, it took her 6.5 hours

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Answer:

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Thetime(inhours)requiredtorepairamachineis an exponentially distributed random variable with parameter λ = 1 . What is 2 (a) the

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Answer:

a) 0.1353

b) 0.3679

Step-by-step explanation:

Let's start by defining the random variable T.

T : ''The time (in hours) required to repair a machine''

T ~ exp (λ)

T ~ exp (1)

The probability density function for the exponential distribution is

(In the equation I replaced λ = L)

$f(x)=Le^{-Lx}$

With L > 0 and x ≥ 0

In this exercise λ = 1 ⇒

$f(x)=e^{-x}$

For a)

$P(T>2)$

$P(T>2)=1-P(T\leq 2)$

$P(T>2)=1-\int\limits^2_0 {e^{-x} } \, dx$

$P(T>2)=1-(-e^{-2}+1)$

$P(T>2)=e^{-2}=0.1353$

For b)

$P(T\geq 10/T>9)$

The event (T ≥ 10 / T > 9) is equivalent to the event T ≥ 1 so they have the same probability of occur

$P(T\geq 10/T>9)=P(T\geq 1)$

$P(T\geq 1)=1-P(T$

$P(T\geq 1)=1-(-e^{-1}+1)=e^{-1}=0.3679$

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The answer to #3 is 52.

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You own an electronics store with a merchandise book value of $245,000. You conduct a physical inventory and find the value to b

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0.22% shrinkage as a percent of sales.

To calculate shrinkage you subtract the physical inventory value from the book value.

245,000-237,000 = 800

The shrinkage was $800. To find the shrinkage as a percent of sales take the shrinkage value and divide it by the sales value to get shrinkage as a percentage of sales.

800 / 360,000 = 0.0022....

Multiply Decimal by 100 to get the percentage

100 * 0.0022.... = 0.22%

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Plot the following points on a coordinate grid and find the area of the figure (4,3); (-2,3); (-2,-1); (4,-1)

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Answer:

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Step-by-step explanation:

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