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Rufina [12.5K]
3 years ago
15

What is the opposite of 3?

Mathematics
1 answer:
chubhunter [2.5K]3 years ago
3 0

Answer:

Yeah that's easy -3

Step-by-step explanation:

+3=3 which the opposite of a positive is a negative. So -3. Hope this help.

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The hypotenuse of a right triangle is 7 inches longer than the base and 14 inches longer than the height. the permeter of the tr
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To determine the area of a triangle, we calculate one half of the product of the base and the height of the triangle so we need data on its base and its height. We are given the following:

Hypotenuse = 7 + base = 14 + height
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The perimeter of the triangle is equal to the sum of the three sides of the triangle which are the height, base and hypotenuse. So,

Perimeter = height + base + hypotenuse = 84

We let x = height and y = base. We calculate area as follows:

84 = x + y + (7 + y)
77 = x + 2y
x = 77 -2y

Hypotenuse is related to the other sides by the Pythagorean theorem.

Hypotenuse^2 = (x^2 + y^2)
(14 + x)^2 = x^2 + y^2
(14 + (77-2y))^2 = (77-2y)^2 + y^2
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Solving for y and x
y = 28
x = 21

Area = (28)(21) / 2 = 294 square inches 
3 0
3 years ago
What is three eighths plus one half
Annette [7]

Answer:

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Step-by-step explanation:

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soldi70 [24.7K]

Answer:

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Answer:

1 and 3/5

Step-by-step explanation:

4/5+4/5=8/5

8÷5

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2 years ago
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