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3 years ago

14

miss mittlemire wants to make a garden that is 8 ft wide and 12.25 ft long she wants to figure out what the area would be for a

garden this size what would the area be for her garden

1 answer:

nasty-shy [4]3 years ago

5 0

Answer:

98

Step-by-step explanation:

you multiply the two too find the area

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Original painting was 39 ft²
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3 years ago

A market research team compiled the following discrete probability distribution, where X represents the number of automobiles ow

rodikova [14]

Answer:

The standard deviation of X is 0.7

Step-by-step explanation:

We are given the following distribution:

x: 0 1 2 3

P(x): 0.3 0.5 0.2 0.4

We have to find the standard deviation of X.

Formula:

$E(x) = \displaystyle\sum x_iP(x_i)\\\\E(x) =0(0.3) + 1(0.5) + 2(0.2) + 3(0.4)\\\\E(x) = 2.1\\\\E(x^2) = \displaystyle\sum x_i^2P(x_i)\\\\E(x^2) =0(0.3) + 1(0.5) + 4(0.2) + 9(0.4)\\\\E(x^2) = 4.9\\\\Var(x) = E(x^2) - (E(x))^2 = 4.9-(2.1)^2 = 0.49\\\\\sigma(x) = \sqrt{Var(x)} =\sqrt{0.49} = 0.7$

Thus, the standard deviation of X is 0.7

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3 years ago

A carpenter has a board of 18.5 feet long and needs to cut as many 1.75 feet long pieces as possible how many pieces can the car

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Answer:

Step-by-step explanation:

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4 years ago

If 10 men can complete a piece of work in 30 days how many men are requiredto complete the same job in 25 days?

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We must assume that all workmen work at the same rate, and keep it up forever.

More men ==> fewer days

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Cross-multiply the proportion:

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3 years ago

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Zepler [3.9K]

Answer:

1). 0.026

2) 0.300

Step-by-step explanation:

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3 years ago

Read 2 more answers