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wlad13 [49]
3 years ago
14

Need help with trig question

Mathematics
1 answer:
Solnce55 [7]3 years ago
5 0

Answer:

  0 +256i

Step-by-step explanation:

According to Euler's formula, ...

  (4 cis π/8)^4 = (4^4) cis (4×π/8) = 256 cis π/2 = 0 +256i

_____

"cis" is an abbreviation sometimes used for "cosine + i×sine". It simplifies writing the expression. Engineers sometimes simplify it further, writing 4∠(π/8) for the expression in this problem statement.

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HELP URGENT. The following sphere has a diameter of 18 cm. What is the volume of the sphere? Use 3.14 for and round your answer
Trava [24]

The volume of the sphere with the given value of diameter is to the nearest tenth is 3052.1cm³.

Option C is the correct answer.

<h3>What is the volume of the sphere?</h3>

The volume of  the sphere is the amount of space occupied within the sphere.

Volume of sphere is expressed as;

V = (4/3)πr³

Where r is the radius and π is pi ( π = 3.14 )

Given that;

  • Diameter of the sphere d = 18cm
  • Radius r = d/2 = 18cm/2 = 9cm
  • Constant pi π = 3.14
  • Volume V = ?

V = (4/3)πr³

V = (4/3) × 3.14 × 9cm)³

V = (4/3) × 3.14 × 729cm³

V = 3052.1cm³

Therefore, the volume of the sphere with the given value of diameter is to the nearest tenth is 3052.1cm³.

Option C is the correct answer.

Learn more about volume of hemisphere here: brainly.com/question/3362286

#SPJ1

6 0
2 years ago
Which point lies on the line with point-slope equation y-3=4(x+7)
Arte-miy333 [17]

Point slope equation for point (h,k) and slope m is given by

y-k=m(x-h)

compare given equation with formula

we get h=-7, k=3

so the required point is (-7,3)

7 0
3 years ago
Read 2 more answers
Plz help its math <br> do 1 pick anything
zhenek [66]

Answer:

-3

Step-by-step explanation:

30/(-2)-(-3)(4)

BIDMAS

-15 - (-3)(4)

-15 - -12

-15+12

-3

7 0
2 years ago
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Paige went to a hair stylist to get a haircut. Her bill came to $52.00, and she left an 18% tip. How much did she spend in all?
Dimas [21]
The answer is d

This is the answer because you multiply 52 by 18% and then add the answer to 52 and will getD
5 0
4 years ago
Can someone help me please
lilavasa [31]

Answer:

<h2>=2⁵</h2><h2>it's option B 2⁵</h2><h2>(B) 2⁵ is the right option</h2>

8 0
3 years ago
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