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vampirchik [111]
1 year ago
8

Pleaseeeeee help meeee answer number 3,5 and 7 they are hard for me to do

Mathematics
1 answer:
Liula [17]1 year ago
8 0

Answer:

5. 52+56 < 49x -46x

108< 3x

108/3< 3x/3

36

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Answer:

Step-by-step explanation:

Always use your imaginary scissor:

Cut the above and below circle and the cylinder  role it down-ways like a carpet and you will end up with two circles and a big rectangular.

Surface circle: 7 * 7 * 3,14 = 153.86

Surface carpet: 20 * circle exterior (or the length of the circle)= 20 * 2* 3.14 * 7

Results:

153, 86 * 2 (because we cut 2 circles from the cylinder) + 132,6 = 439.6

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2 years ago
In △PKQ, PK = KQ = 12, m∠P = 35º. Find PQ.
Neporo4naja [7]

The length of PQ is 19.66 units

Step-by-step explanation:

The given is:

1. PK = KQ = 12

2. m∠P = 35º

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∵ PK = KQ

∴ m∠P = m∠Q

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The sum of measures of the angles of a triangle is 180°

∴ m∠P + m∠Q + m∠K = 180°

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Let us use cosine rule to find the length of PQ

∵ PQ = \sqrt{(KP)^{2}+(KQ)^{2}-2(KP)(KQ)cos(K)}

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∴ PQ = \sqrt{(12)^{2}+(12)^{2}-2(12)(12)cos(110)}

∴ PQ = 19.66

The length of PQ is 19.66 units

Learn more:

You can learn more about triangle in brainly.com/question/12985572

#LearnwithBrainly

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3 years ago
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natulia [17]

Answer: 2

Step-by-step explanation:

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