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4 years ago

HELPPPPP y and x have a proportional relationship, and y = 5 when x = 4. What is the value of x when y = 8?

Mathematics

2 answers:

TiliK225 [7]4 years ago

6 0

The value of X is 7 because it is one lover than Y.

Genrish500 [490]4 years ago

6 0

The answer is x=6.4
I hope I was a help to u

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Phoenix [80]

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3 years ago

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Review the proof step statement 1 cos(2x) = 1-sin^2(x)

ehidna [41]

Answer:

Option (3)

Step-by-step explanation:

Correct steps for the proof are,

Step Statement

1 cos(2x) = 1 - 2sin²(x)

2 Let 2x = θ

3 x = $\frac{\theta}{2}$

4 $\text{cos}\theta = 1 - 2\text{sin}^2(\frac{\theta}{2} )$

5 $\text{cos}\theta-1 =-2\text{sin}^2(\frac{\theta}{2} )$

6 $1-\text{cos}\theta =2\text{sin}^2(\frac{\theta}{2} )$

7 $\frac{1-\text{cos}\theta}{2} =\text{sin}^2(\frac{\theta}{2} )$

8 $\pm \sqrt{\frac{1-\text{cos}\theta}{2} }=\text{sin}(\frac{\theta}{2} )$

There is a mistake in step 6.

Therefore, Option (3) will be the answer.

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3 years ago

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Ainat [17]

Answer:

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Step-by-step explanation:

It is B because it is a square so 12 units would be on both sides. 12*2+10*2

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3 years ago

What is the solution to the linear equation?

antoniya [11.8K]

Answer:

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Step-by-step explanation:

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3 years ago

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alina1380 [7]

Answer:

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Step-by-step explanation:

Simplify the equation by dividing both numbers by 5. You will get -4/1. A 1 as a denominator is usually ignored.

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3 years ago

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