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Dafna11 [192]
3 years ago
8

What is the constant variation of y=5x

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
5 0

Answer:

The constant of variation, k , is 5 .

Step-by-step explanation:

Let's solve for x.

y=5x

Step 1: Flip the equation.

5x=y

Step 2: Divide both sides by 5.

5x

5

=

y

5

x=

1

5

y

Answer:

x=

1

5

y

loris [4]3 years ago
4 0

Answer:

It's 5.

Step-by-step explanation:

Because a constant is a number next to the variable.

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If cos(x) = Three-fourths and tan(x) &lt; 0, what is cos(2x)?
makvit [3.9K]

Step-by-step explanation:

The value of sin(2x) is \sin(2x) = - \frac{\sqrt{15}}{8}sin(2x)=−

8

15

How to determine the value of sin(2x)

The cosine ratio is given as:

\cos(x) = -\frac 14cos(x)=−

4

1

Calculate sine(x) using the following identity equation

\sin^2(x) + \cos^2(x) = 1sin

2

(x)+cos

2

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So we have:

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=1

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Subtract 1/16 from both sides

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Take the square root of both sides

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Given that

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It means that:

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So, we have:

\sin(x) = -\sqrt{15/16

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/4

sin(2x) is then calculated as:

\sin(2x) = 2\sin(x)\cos(x)sin(2x)=2sin(x)cos(x)

So, we have:

\sin(2x) = -2 * \frac{\sqrt{15}}{4} * \frac 14sin(2x)=−2∗

4

15

∗

4

1

This gives

\sin(2x) = - \frac{\sqrt{15}}{8}sin(2x)=−

8

15

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Simplify: 6-4[3(2x+5)-4x]
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[- 12 - 8x +5 16x]+ 6
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What is the value of X?
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Answer:

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Step-by-step explanation:

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