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steposvetlana [31]
3 years ago
12

7th grade math help me pleaseee :)

Mathematics
1 answer:
Gemiola [76]3 years ago
8 0

Answer:

A.  A + B (it'll be negative because they're both negative numbers and adding a negative is the same as subtracting a positive)

B. B - A ( It'll be positive because subtracting a negative is the same as adding a positive, and B is closer to 0 so it's a "bigger" number than A. so, adding A to B will make it positive)

Step-by-step explanation:

The explanations are in parenthesis to the right of the answer. they're kind of confusing, but the answers are correct.

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The maximum grain yield for corn is achieved by planting at a density of 37,000 plants per
Firlakuza [10]

According to the question, there are 37000 plants per hectare, the total corn plan required is 475,665.75 corn plants

<h3>Determining the area of a trapezium?</h3>

The trapezium is a 2 -dimensional plane shape with the area calculated as shown below:

The formula for calculating the area of a trapezoid is expressed as:

Area = 0.5(a + b)h

Given the following parameters

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Substitute the given parameters
Area = 1/2 (500 + 900) * 800
Area = 1/2 (1400) * 800
Area = 560000 square feet

Since 1 acre is equivalent to 43560 square feet, hence the total acre required is expressed as:

Total acre = 560000/43560
Total  acre = 12.856 acres

<h3>Convert the acres to total corn plant</h3>

Also since there are 37000 plants per hectare, the total corn plan required is 475,665.75 corn plants

Learn more on area of trapezoid here: brainly.com/question/1463152

6 0
2 years ago
The length of a rectangular garden is 5 m longer than it's breadth. If it's perimeter is 150 m, find the area of the garden.​
jonny [76]

Answer:

Step-by-step explanation:

L = B + 5

2L + 2B = 150

Substituting gives 2B + 2(B+5) = 150

4B = 140

B=35; L = 40

Area = B x L = 35 x 40 = 1400 m2

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3 years ago
I NEED THE ANSWER ASAP PLEASEEEE
drek231 [11]
Well, I need a picture
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Answer:

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Step-by-step explanation:

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