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STALIN [3.7K]
2 years ago
6

Please help me with this

Mathematics
1 answer:
Vitek1552 [10]2 years ago
3 0

Answer:

A = 6.2831853071796 in^{2}

Step-by-step explanation:

Surface area of a capsule:A = 4πr2 + 2πrh.

A = 4πr2 + 2πrh. \\ a = 4\pi(0.5)2 + 2\pi(0.5)(1) \\  A= 6.2831853071796  \: in {}^{2}

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How do you add vectors? Add the vector 3,4 to the vector that goes 7 units at an angle of 2π/3.
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The sum of two vectors is (- 0.5, 10.1)

<u>Explanation: </u>

To add two vectors, add the corresponding components.

Let u =⟨u1,u2⟩ and v =⟨v1,v2⟩ be two vectors.

Then, the sum of u and v is the vector

u +v =⟨u1+v1, u2+v2⟩

(b)

Two vectors = ( 3, 4 )

angle 2π/3 = 120°

In x axis, the vector is = 7 cos 120°

                           = 7 X -\frac{1}{2} \\\\= -3.5

In y axis, the vector is = 7 sin 120°

                                  = 7 X 0.866

                                  = 6.062

The second vectors are ( -3.5, 6.062)

Sum of two vectors = [( 3 + (-3.5) ), (4 + 6.062)]

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