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Artyom0805 [142]
3 years ago
6

Find the circumference for a circle pi = 3.142 diameter= 45cm​

Mathematics
2 answers:
yaroslaw [1]3 years ago
3 0

Answer:

The circumference of the circle is 141.39 cm

Step-by-step explanation:

Circumference of a circle C = \pi d or 2\pi r

If diameter d = 45 cm and \pi = 3.142

Then C = 3.142*45

C = 141.39 cm

marysya [2.9K]3 years ago
3 0

Answer:141.39

Step-by-step explanation:

To find the circumference of a circle of diameter 45cm using 3.142 as pi

C=πd

C=3.142×45cm

C=141.39cm

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4(9-x)6-6(4-7x)>5(1-2x)-8x+9(6-x)
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Answer:

x > 133/45

WORKING :

Multiply the number : 4 . 6 = 24

24(9-x) - 6 (4 - 7x) > 5 (1 - 2x) - 8x + 9 (6-x)

expand 24(9 - x) - 6(4 -7x) : 18x + 192

expand 5(1-2x) - 8x + 9(6-x) : - 27x + 59

18x + 192 > -27x + 59

subtract 192 from both sides

18x + 192 - 192 > -27x + 59 - 192

simplify

18x > -27x - 133

add 27x to both sides

18x + 27x > - 27x - 133 + 27x

simplify

45x > - 133

Divide both sides by 45

45x/45 > 133/45

Simplify

x > 133/45

FINALLY ANSWER :

X > 133/45

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