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Basile [38]
3 years ago
15

Solve the equation 3(4x - 5) - 27​

Mathematics
2 answers:
Yuliya22 [10]3 years ago
7 0

Answer:

12x-42

Step-by-step explanation:

Margaret [11]3 years ago
6 0

Answer:

6(2x-7)

Step-by-step explanation:

first factor the steps: 3(4x-5)-27

Calculate: 3(4x-5-9)

Factor expression: 3(4x-14)

Mulitply 3x2(2x-7)

Answer: 6(2x-7)

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Answer:

2.25 radians

Step-by-step explanation:

First we need to find the length of the circunference, using the formula:

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Where r is the radius. Using r = 8, we have:

C = 2 * pi * 8 = 50.2655 cm

Now, to find the measure of the central angle related to that arc of 18 cm, we can use a rule of three, knowing that the whole circunference has a central angle of 2pi radians:

2pi rad -> 50.2655 cm

x -> 18 cm

x = 18 * 2pi / 50.2655

x = 2.25 rad

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