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3 years ago

Use subsitution to solve 6x + 4y = 14 y = 5

Mathematics

2 answers:

Vesnalui [34]3 years ago

7 0

Answer:

Step-by-step explanation:

1. 6x + 4(5) = 14

2. 6x + 20 = 14

3. move 20 over

4. 6x = 14 -20

5. 6x = -6

6. Divide

7. x = -1

zhannawk [14.2K]3 years ago

7 0

Answer:

x = -1

Step-by-step explanation:

replace y with 5

6x + 4*5 = 14

6x + 20 = 14

-20 -20 Subtract 20 from both sides of the equation

6x = -6 Divide by 6 on both sides of the equation

x = -1

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Answer:

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Dima020 [189]

measure of central angle is 4.607 radians with an arc length equaling 29.21 and a circumference = 40.44

Step-by-step explanation:

Arc length = 29.21

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Central angle = ?

The formula used to find central angle is:

$s=r\theta$

where s = arc length, r= radius and Ф=central angle.

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$c=2\pi r\\r=\frac{c}{2\pi } \\Putting\,\,values:\\r=\frac{40.44}{2*3.14}\\r=6.43$

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