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Rainbow [258]
3 years ago
9

A circle has a diameter of 10 cm. what is the circumference ?

Mathematics
2 answers:
satela [25.4K]3 years ago
5 0

Answer:

5

Step-by-step explanation:

All u gotta do is split it in half

Anastaziya [24]3 years ago
4 0

Answer:

31.4 cm

Step-by-step explanation:

The circumference of a circle is given by

C = pi * d where d is the diameter

C = 3.14 * 10

C = 31.4 cm

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Sum of exactly two terms that is equivalent to 3(6x + 9y).
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18x+27y

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4/9(x + 13) = 8 what is the value of the x ​
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Carlos has 4 fifths of a tank of fuel in his car. He uses 1 tenth of a tank per day. How many days will his fuel last?
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What is the value of 8 in the number 33.086?
Paha777 [63]

Answer:

The value of 8 in the number 33.086 would be the hundredth

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3 would be the one

.0 would be tenth

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3 0
3 years ago
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Allen's hummingbird (Selasphorus sasin) has been studied by zoologist Bill Alther.† Suppose a small group of 10 Allen's hummingb
ruslelena [56]

Answer: provided in the explanation segment

Step-by-step explanation:

(a). from the question, we can see that since that б is known, we can use standard normal, z.

we are asked to find an 80% confidence interval for the average weights of Allen's hummingbirds in the study region. What is the margin of error?

⇒ 80% confidence interval for the average weight of Allen's hummingbirds is given thus;

x ± z * б / √m

which is

3.15 ± 1.28 * 0.32/√10

= 3.15 ± 0.1295 = 3.0205 or 3.2795

(b). normal distribution of weight (c) б is known

(c). option (a) and (e) are correct

(d).  from the question, let sample size be given as S

this gives';

1.28 * 0.32/√S = 0.15

√S = (1.28 * 0.32) / 0.15 = 2.73

S = 7.4529

cheers i hope this helps

6 0
2 years ago
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