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krok68 [10]
3 years ago
12

How do you solve this? Show work and answer

Mathematics
2 answers:
zalisa [80]3 years ago
8 0

-9-4d=3+8b first combine like terms so add 4b on both sides so its

-9=3+12b next subtract three on both sides

-12=12b next divide 12 on both sides

-1=b

LenKa [72]3 years ago
7 0

Let's solve your equation step-by-step.

−9−4b=3+8b

Step 1: Simplify both sides of the equation.

−9−4b=3+8b

−9+−4b=3+8b

−4b−9=8b+3

Step 2: Subtract 8b from both sides.

−4b−9−8b=8b+3−8b

−12b−9=3

Step 3: Add 9 to both sides.

−12b−9+9=3+9

−12b=12

Step 4: Divide both sides by -12.

−12b/−12=12/−12

b=−1

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(1 point) Suppose F⃗ (x,y)=⟨2y,−sin(y)⟩ and C is the circle of radius 3 centered at the origin oriented counterclockwise. (a) Fi
g100num [7]

Answer:

The required vector parametric equation is given as:

r(t) = <3cost, 3sint>

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Step-by-step explanation:

Given that

f(x, y) = <2y, -sin(y)>

Since C is a cirlce centered at the origin (0, 0), with radius r = 3, it takes the form

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Which is

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Because

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x = 3cosβ

y = 3sinβ

So that

x² + y² = 3²cos²β + 3²sin²β

= 9(cos²β + sin²β) = 9

That is

x² + y² = 9

The vector parametric equation r(t) is therefore given as

r(t) = <x(t), y(t)>

= <3cost, 3sint>

For 0 ≤ t ≤ 2π

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