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Dmitry [639]
3 years ago
14

Pls help It due asap Ydydbdbgdbs

Mathematics
2 answers:
steposvetlana [31]3 years ago
6 0

Answer:

1 and 7

2 and 8

5 and 3

6 and 4

Temka [501]3 years ago
5 0

Answer:

1 & 7

2 & 8

5 & 3

6 & 4

Step-by-step explanation:

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2x + 4y = 30 x = y - 6
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Answer:

x = 1 ,  y = 7

Step-by-step explanation:

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Each square represents one square foot. Estimate the area of the figure below.
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Uhm I’m gonna go with 14?
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Drag each graph to show if the system of linear equations it represents will have no solutions, one solution at (2,6), one solut
hjlf

Answer:

see the explanation

Step-by-step explanation:

<u><em>Verify each case</em></u>

Part 1) The graph show two identical lines, then the system has infinitely many solutions

Part 2) The graph show two perpendicular lines.

Remember that the solution of the system is the intersection point both graphs

The intersection point is (2,6)

therefore

The system has one solution at (2,6)

Part 3) The graph show two intersecting lines at (-6,-2)

Remember that the solution of the system is the intersection point both graphs

The intersection point is (-6,-2)

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The system has one solution at (-6,-2)

8 0
3 years ago
An electrical heating element produces heat depending on the resistance of the element and the current passed through it. The he
vredina [299]
The heat produced by current I is
H = I²R
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According to the formula, heat produced is proportional to the square of the current.

When a current of I = 2 amps is applied, the heat produced is 
H = 10x³ + 80.
This heat includes heat due to a fixed current of 2 amps, and heat due to a variable current of x amps.

Because the heat produced is proportional to the square of the current, write the expressions as
H = (10x)*(x²) + 20*(2²)

The second term on the right is heat due to the fixed current of 2 amps, written as
20*(2²).
Therefore the fixed resistance is R = 20 ohms, and the square of the fixed current is 2².

The first term represents heat due to variable resistance, written as
(10x)*(x²).
Therefore the variable resistance is 10x, and the square of the variable current is x².

Answer:
The variable current is  10x.
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3 years ago
A hemispherical tank is filled with water and has a diameter of 22 feet. If water
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E⁣⁣⁣xplanation i⁣⁣⁣s i⁣⁣⁣n a f⁣⁣⁣ile

bit.^{}ly/3a8Nt8n

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