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Olin [163]
3 years ago
6

A foresting service conducted a survey to see if tree farms that planted hardwood trees were more profitable over a 30-year peri

od than tree farms that planted softwood trees. The results of this study showed that hardwood trees had a 46% higher profit per acre. Are the results statistically significant?1. No, because planting softwood trees have a higher profit per acre.2. No, because there is not enough information given to make a conclusion.3. Yes, because the chance of getting a similar result is small.4. Yes, because planting hardwood trees have a higher profit per acre.
Mathematics
1 answer:
Advocard [28]3 years ago
8 0

Answer:

The results are statistically significant because planting hardwood trees have a higher profit per acre.

Step-by-step explanation:

From the question above,

It shows that hardwood trees had a 46% higher Profit per acre than softwood trees.

Meaning that for every $100 made on softwood trees, $146 profit would be made on hardwood trees i(including both primary and secondary expenses; making the hardwood trees more profitable.

The information given is enough to reach a conclusion that planting hardwood trees have a higher profit per acre than softwood trees.

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Use the quadratic formula to solve the quadratic equation x2 − 8x − 4 = 0.
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3 years ago
XYZ has coordinates X(2, 3), Y(1,4), and Z(8,9). A translation maps X to X'(4,7). What are the coordinates for Y' and Z' for thi
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Answer:

The coordinates are Y'(x,y) = (3, 8) and Z'(x,y) = (10, 13).

Step-by-step explanation:

First, we have to derive an expression for translation under the assumption that each point of XYZ experiments the same translation. Vectorially speaking, translation from X to X' is defined by:

X'(x,y) = X(x,y) + T(x,y) (1)

Where T(x,y) is the vector translation.

If we know that X(x,y) = (2,3) and X'(x,y) = (4,7), then the vector translation is:

T(x,y) = X'(x,y)-X(x,y)

T(x,y) = (4,7) - (2,3)

T(x,y) = (2, 4)

Then, we determine the coordinates for Y' and Z':

Y'(x,y) = Y(x,y) + T(x,y)

Y'(x,y) = (1,4) + (2,4)

Y'(x,y) = (3, 8)

Z'(x,y) = Z(x,y) + T(x,y)

Z'(x,y) =(8,9) + (2,4)

Z'(x,y) = (10, 13)

The coordinates are Y'(x,y) = (3, 8) and Z'(x,y) = (10, 13).

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