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timama [110]
3 years ago
15

Solve x/55 = 5/11. x=?

Mathematics
1 answer:
trapecia [35]3 years ago
7 0
Multiply both sides by 55 to get x=25
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your answer would be 450

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For a polygon with 10 sides, which equation below represents the sum of the interior angles in the polygon?
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Its Sum And The Is sum Is Sum

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What is the product?<br> 4927 x 7
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34489

Step-by-step explanation:

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How many solutions does the equation sin(5x) = 1/2 have on the interval (0, 2PI]
Darina [25.2K]

Answer:

Step-by-step explanation:

Given the equation

Sin(5x) = ½

5x = arcSin(½)

5x = 30°

Then,

The general formula for sin is

5θ = n180 + (-1)ⁿθ

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θ = n•36 + (-1)ⁿ30/5

θ = 36n + (-1)ⁿ6

The range of the solution is

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First solution

When n = 0

θ = 36n + (-1)ⁿθ

θ = 0×36 + (-1)^0×6

θ = 6°

When n = 1

θ = 36n + (-1)ⁿ6

θ = 36-6

θ = 30°

When n = 2

θ = 36n + (-1)ⁿ6

θ = 36×2 + 6

θ = 78°

When n =3

θ = 36n + (-1)ⁿ6

θ = 36×3 - 6

θ = 102°

When n=4

θ = 36n + (-1)ⁿ6

θ = 36×4 + 6

θ = 150

When n =5

θ = 36n + (-1)ⁿ6

θ = 36×5 - 6

θ = 174°

When n = 6

θ = 36n+ (-1)ⁿ6

θ = 36×6 + 6

θ = 222°

When n = 7

θ = 36n + (-1)ⁿ6

θ = 36×7 - 6

θ = 246°

When n =8

θ = 36n + (-1)ⁿ6

θ = 36×8 + 6

θ = 294°

When n =9

θ = 36n + (-1)ⁿ6

θ = 36×9 - 6

θ = 318°

When n =10

θ = 36n + (-1)ⁿ6

θ = 36×10 + 6

θ = 366°

When n = 10 is out of range of θ

Then, the solution is from n =0 to n=9

So the equation have 10 solutions in the range 0<θ<2π

4 0
2 years ago
X/(4.2 )= -3 <br><br><br><br><br> Theres no choices
Ksivusya [100]

Answer:

-1.40

Step-by-step explanation:

The answer is -1.40 (negative 1 and 2/5) because....

The number would have to be a mixed number.

The number would also have to be a negative.

5 0
2 years ago
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