I NEED HELP ASAP PLEASE

Mathematics

1 answer:

PolarNik [594]3 years ago

5 0

Answer:

3 and 2

Step-by-step explanation:

I can't see your orginal equation. But it's probably 3 cos x . Which the amplitude is 3 then. Vertical translation would be how I move this graph up or down compared to the y axis. So if I were to add a +2 to the end of 3cos(x) I will move the graph up 2 spaces. So my final equation is 3cos (x)+2.

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There is 2 ways to solve this type of question.

Method 1
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Formula
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a² + b² = c²

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Apply the formula
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(7√2)² + (7√2)² = c²
c² = 98 + 98
c² = 196
c = √196
c = 14

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Ans: The diagonal length is 14cm
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_____________________________________________________________

Method 2
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Identify the triangle
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This is a special triangle
45° - 45° - 90°

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Property of the Angles
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x - x - x√2

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Find hypotenuse
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Given that the non-hypotenuse is 7√2

Hypotenuse = (7√2)(√2)
Hypotenuse = 7 x 2
Hypotenuse = = 14cm

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Ans: The diagonal length is 14cm
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