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SIZIF [17.4K]
3 years ago
13

Sadie is Landscaping a triangular area in her backyard to the nearest Foot how much fencing will Sadie need to enclose the area.

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
6 0

We need to fond the last missing side of this right triangle.

We need to use pythagorean theorem.

a^2 + b^2 = c^2

In this problem,

a = 10

b = ?

c = 14

Plug these numbers into the equation.

10^2 + b^2 = 14^2.

Square each term.

100 + b^2 = 144.

Subtract 100 from each side.

b^2 = 44.

Take the square root of each side.

b = 7 ft

we have to add together each side of the triangle to find the perimeter

10ft + 7ft + 14ft = 31 feet

The perimeter is 31 ft

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What binomial do you have to add to the polynomial 2x^2+3y^2-5xy+1 to get the following?
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Binomial -3y^{2}+5xy when added to polynomial 2x^{2} +3y^{2} -5xy+1  gives  polynomial  that does not contain the variable y .

<h3>What is binomial?</h3>

A mathematical expression consisting of two terms connected by a plus sign or minus sign .

Example: x + 2 is a binomial, where x and 2 are two separate terms.

<h3>What is polynomial?</h3>

A polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer

According to the question

polynomial 2x^{2} +3y^{2} -5xy+1

when added with  -3y^{2}+5xy  

= 2x^{2}+1   (as 3y^{2} -5xy got cancelled )

that does not contain the variable y

Hence, Binomial -3y^{2}+5xy when added to polynomial 2x^{2} +3y^{2} -5xy+1  gives that does not contain the variable y .

To know more about Binomial and polynomial here :

brainly.com/question/1698358

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What is 212,514 +396,705 estimated
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Answer:

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Step-by-step explanation:

An estimate can be defined as a rough calculation of a numerical value, usually the upper limitation.

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Actual addition of the values would have given;

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Therefore, 600,000 is an estimated value of 609,219.

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