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BartSMP [9]
3 years ago
8

Write an equation of the line that passes through (8,1) and is perpendicular to the line 2y+4x=12.

Mathematics
1 answer:
Olegator [25]3 years ago
3 0

Answer:

Step-by-step explanation:

note:when you do perpendicular lines you must change the slope to the oppisite and reciporcal

2y+4x=12

2y-1/4x=12

1/4x+2y=12

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BRAINLIESTTT ASAP! PLEASE HELP ME :)
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<h3>Answer: Choice C</h3>

Here's how the verification would look like

\frac{\sin^2x+\cos^2x}{\cos x} = \sec x

\frac{1}{\cos x} = \sec x using the identity here

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5 0
3 years ago
Answer ,how to do it.
guapka [62]

Answer:

<u>The system has two solutions:</u>

<u>x₁ = 5  ⇒ y₁ = -10</u>

<u>x₂ = -2 ⇒ y₂ = 11</u>

Step-by-step explanation:

Let's solve the system of equations, this way:

y = -3x + 5

y = x ² - 6x - 5

Replacing y in the 2nd equation:

y = x ² - 6x - 5

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x ² - 3x - 10 = 0

Solving for x, using the quadratic formula:

(3 +/- √(9 -4 * 1 * -10))/2 * 1

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(3 +/- √49)/2

(3 +/- 7)/2

x₁ = 10/2 = 5

x₂ = -4/2 = -2

x₁ = 5  ⇒ y₁ = -10

x₂ = -2 ⇒ y₂ = 11

<u>As we can see the system has two different solutions</u>

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