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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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4 years ago
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For f(x)=4x+1 and g(x)=x^2-5,find(f•g)(4)
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Step-by-step explanation:

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(f•g)(4) = 4(4^2 -5)+1

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Answer:

x = -2, y = -(10/7)

Step-by-step explanation:

-3x + 3 = 9  ---------- equation 1

12x - 7y = -14  --------equation 2

from equation 1

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collect like terms

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