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2 years ago

1. a white candle has a circumference of 18.8 inches. what's the radius?

Mathematics

1 answer:

faltersainse [42]2 years ago

6 0

Answer:

3 in
3.5 in

Step-by-step explanation:

Circumference formula:

C = 2πr,
where π = 3.14, r - radius

C = 18.8 in
2*3.14r = 18.8
6.28r = 18.8
r = 18.8/6.28
r = 2.99 ≈ 3 in

C = 22 in
6.28r = 22
r = 22/6.28
r ≈ 3.5 in

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The answer would be 2.85%.

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3 years ago

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Answer:

(a) The probability distribution is valid.

(b) The probability that x = 30 is 0.30.

Step-by-step explanation:

The probability distribution of the random variable X is:

x: 20 | 25 | 30 | 35

f (x): 0.20 | 0.15 | 0.30 | 0.35

(a)

The properties of a probability distribution are:

0 ≤ P (X) ≤ 1
∑ P (X) = 1

All the probability value are more than 0 and less than 1.

Compute the sum of all the probabilities as follows:

$\sum P(X)=0.20+0.15+0.30+0.35=1$

The sum of all probabilities is 1.

Thus, the probability distribution is valid.

(b)

Consider the probability distribution table.

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P (X = 30) = 0.30.

Thus, the probability that x = 30 is 0.30.

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3 years ago

Ted has a credit card that uses the average daily balance method. For the first 9 days of one of his billing cycles, his balance

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Your question doesn't say what are the options, but we can make some reasoning.

The average daily balance method is based, obviously, on the average daily balance, which is the average balance for every day of the billing cycle. Therefore, in order to calculate the average daily balance, you need to sum the balance of every day and then divide it by the days of the billing cycle.
In your case:
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Now, in order to calculate the interest, you should first calculate the daily rate, since APR is usually defined yearly, and therefore:
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3 years ago

Read 2 more answers

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Answer:

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3 years ago

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