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fredd [130]
3 years ago
13

Which of the following parametric equations are equivalent to the polar equation r=3 cos theta

Mathematics
2 answers:
Allushta [10]3 years ago
5 0
To solve the problem you must know that to change from Cartesian to polar coordinates you must write:
 x = rcos (θ)
 Where "r" is the radius
 Likewise y = rsin (θ)
 Therefore, in the expression r = 3cos (θ) one can write r as:
 r = x / cos (θ)
 So:
 x / cos (θ) = 3cos (θ)
 x = 3cos ^ 2 (θ)
 The same for y ...
 y = rsin (θ)
 y = 3cos (θ) sin (θ).

  Finally the correct answer is option 2.
 x = 3cos ^ 2 (θ) y = 3cos (θ) sin (θ).
cupoosta [38]3 years ago
3 0

Answer:

B

Step-by-step explanation:

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The product of two consecutive odd integers is 1 less than four times their some. find the two integers.
nignag [31]
2 consecutive odd integers.....x and x + 2.....the product means multiply....the sum means add.

x(x + 2) = 4(x + x + 2) - 1
x^2 + 2x = 4(2x + 2) - 1
x^2 + 2x = 8x + 8 - 1
x^2 + 2x = 8x + 7
x^2 + 2x - 8x - 7 = 0
x^2 - 6x - 7 = 0
(x - 7)(x + 1) = 0

x - 7 = 0            x + 2 = 7 + 2 = 9
x = 7
 
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x = -1

there can be 2 answers for this....
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(2) -1 and 1
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2 years ago
I need the answer for this question
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Answer:

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Step-by-step explanation:

7 0
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5, 3.1.24<br><br> f(x) = 3x² + 5; find f(x + 3) - [f(x) + 3]
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Given that f(x) = 3x^2 + 5, we have

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so that

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kaheart [24]

Answer:

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Step-by-step explanation:

Given that the distance d, in centimeters, that a diving board bends below its resting position when you stand at its end is dependent on your distance x, in meters, from the stabilized point

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For finding out the distances for x=1 and x=2

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3 0
2 years ago
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