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Kipish [7]
3 years ago
12

Use a calculator to find the value of Sin 21°

Mathematics
2 answers:
VikaD [51]3 years ago
8 0

The answer is;

B. 03584
sveta [45]3 years ago
4 0

Answer:

Option B is the correct answer.

Step-by-step explanation:

We need to find  the value of Sin 21° using calculator and round to four decimal places.

Using calculator

             Sin 21° = 0.358367949

Rounding the value of Sin 21° to four decimal places.

            Sin 21° = 0.3584

Option B is the correct answer.

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Answer:

The answer is below

Step-by-step explanation:

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Since the box and the cylinder have the same height and the cylinder is wide enough for the box to be placed inside, this means that the box has a volume greater than that of the cylinder. Hence:

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No Spam. I will mark Brainliest, if you get it right. A tank's length is 4 feet longer than its width. The height is 2 feet more
dmitriy555 [2]

Answer: 3

Step-by-step explanation:

Let say x the width of the tank,

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x+2 its height

Volume=105=x(x+4)(x+2)\\\\P(x)=x^3+6x^2+8x-105=0\\\\105=3*5*7\\\\P(1)\neq 0\\P(-1)\neq 0\\P(3)=0\\\\\begin{array}{|c|cccc|}&x^3&x^2&x&1\\&1&6&8&-105\\x=3&&3&27&105\\----&--&--&--&--\\&1&9&35&0\\\end{array}\\\\\\P(x)=x^3+6x^2+8x-105=(x-3)(x^2+9x+35)\\And \ x^2+9x+35\ is\ not \ factorizable\ (\Delat=9^2-4*35 < 0)\\

<u>width=3</u>

length=3+4=7

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3 years ago
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