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marysya [2.9K]
3 years ago
8

Let X represent the time it takes from when someone enters the line for a roller coaster until they exit on the other side. Cons

ider the probability model defined by the cumulative distribution function given below.0 x < 3F(x) = (x-3)/1.13 3 < x < 4.131 x > 4.13What is E(X)? Give your answer to three decimal places.What is the value c such that P(X < c) = 0.75? Give your answer to four decimal places.What is the probability that X falls within 0.28 minutes of its mean? Give your answer to four decimal places.

Mathematics
1 answer:
elena55 [62]3 years ago
8 0

Answer:

Step-by-step explanation:

The detailed step by step calculation using the probability density function approach is as shown in the attached file.

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Classify the following triangle. Check all that apply
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Answer:

D, E

Step-by-step explanation:

All sides are not the same length so not A

Two sides are not the same length so not B

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Not all sides are greater than 90 so not F

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3 years ago
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You flip the inequality.
Example: if x > -y and you divide both sides by (-1) then you flip the inequality so: -x < y
4 0
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Andrews [41]

Answer:

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Step-by-step explanation:

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3 years ago
Habib wants to cover a kitchen wall in ceramic tile. The wall is 42 feet by 10 feet.
Slav-nsk [51]

Answer: Side of largest square tile will be 105 feet.

Explanation:

Since we have given that

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So,

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Now, we find the number of tiles used,

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\frac{\text{Area of wall}}{\text{H.C.F. of }42\text{ and }11\times\text{ H.C.F. of }42\text{ and } 11}}\\\\=\frac{42\times 10}{2\times 2}\\\\=\frac{420}{4}\\\\=105

We get integer value of number of tiles.

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Answer:

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