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andrew11 [14]
4 years ago
11

13. Majesta is building a rectangular sandbox for her younger sister. The length of the sandbox is 2 feet shorter than

Mathematics
1 answer:
matrenka [14]4 years ago
6 0

Answer:

Width = 5.5 feet

Length =  14.5 feet

Step-by-step explanation:

let the width = x feet

Length = 3x - 2 feet

Perimeter = 40 feet

2 * width + 2  * length = 40

2x + 2*(3x-2) = 40

2x + 6x - 4 = 40

              8x = 40 + 4 = 44

               x = 44/8  = 5.5

Width = 5.5 feet

Length = 3 * 5.5 -2 = 16.5 - 2 = 14.5 feet

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Explanation:

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3 years ago
The Environmental Protection Agency (EPA) has contracted with your company for equipment to monitor water quality for several la
max2010maxim [7]

Answer:

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Step-by-step explanation:

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Binomial probability distribution

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In which C_{n,x} is the number of different combinations of x objects from a set of n elements, given by the following formula.

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And p is the probability of X happening.

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Assume that each device has a probability of 0.05 of failure during the course of the monitoring period.

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This is P(X = 1)

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vlabodo [156]

We will use the Unitary method to solve this question

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