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AleksandrR [38]
3 years ago
11

A circle has a diameter of 18 cm. Find the circumference. . Use 3.14 for π.

Mathematics
1 answer:
marta [7]3 years ago
8 0

Answer:

Step-by-step explanation:

C= 2 *3.14*r

we have diameter 2r=d=18

C=18*3.14

C=56.52

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19

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40 two-digit numbers have one odd digit and one even digit in them.

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Someone Please help me answer this question
natka813 [3]

Answer:

∠ QRS = 43°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles and equate to 180

4n - 9 + 5n - 18 + 90 = 180, that is

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∠ QRS = 4n - 9 = 4(13) - 9 = 52 - 9 = 43°

∠ RSQ = 4n - 18 = 4(13) - 18 = 65 - 18 = 47°

5 0
3 years ago
If the CPI (consumer price index) of 141 increased 8.3 % this year. What was the end of year CPI?
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end of year CPI = 141 + 11.703 = 152.703

 

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152.703

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