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2 years ago

Find the area of a circle with a diameter of 14 meters. Round your answer to the nearest hundredth of a square meter.

Mathematics

1 answer:

Jlenok [28]2 years ago

4 0

To find the area of the circle:

⇒ need to know the formula: $\pi r^{2}$

r: radius or half of diameter's length ⇒ 7 meters

Let's calculate:

$Area = \pi (7)^2=49\pi =153.9380m^3$

The problem asks us to round to the nearest hundreth:

$Area = 153.94m^3$

Answer: $153.94m^3$

Hope that helps!

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Answer:

yes

Step-by-step explanation:

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3 years ago

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.003 is 1/10 of 0.03?

Ksju [112]

Yes, 0.003 is 1/10 of 0.03, since 0.03/10=0.003. A good trick to answer these problem is to add another 0 while you are in the decimals, dividing by 10.

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3 years ago

Suppose ARB Bank is reviewing its service charges and interest payment policies on current accounts. Suppose further that ARB ha

Advocard [28]

Answer:

5.94% of customers carries a balance of GH¢100 or lower.

82.64% of customers carries a balance of GH¢500 or lower.

0% of current account customers carries average daily balances exactly equal to GH¢500.

76.7% of customers maintains account balance between GH¢100 and GH¢500

Step-by-step explanation:

When the distribution is normal, we use the z-score formula.

In a set with mean $\mu$ and standard deviation $\sigma$ , the zscore of a measure X is given by:

$Z = \frac{X - \mu}{\sigma}$

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this question, we have that:

$\mu = 350, \sigma = 160$

What percentage of customers carries a balance of GH¢100 or lower?

This is the pvalue of Z when X = 100. So

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{100 - 350}{160}$

$Z = -1.56$

$Z = -1.56$ has a pvalue of 0.0594

5.94% of customers carries a balance of GH¢100 or lower.

What percentage of customers carries a balance of GH¢500 or lower?

This is the pvalue of Z when X = 500.

$Z = \frac{X - \mu}{\sigma}$

$Z = \frac{500 - 350}{160}$

$Z = 0.94$

$Z = 0.94$ has a pvalue of 0.8264

82.64% of customers carries a balance of GH¢500 or lower.

What percentage of current account customers carries average daily balances exactly equal to GH¢500?

In the normal distribution, the probability of finding a value exactly equal to X is 0. So

0% of current account customers carries average daily balances exactly equal to GH¢500.

What percentage of customers maintains account balance between GH¢100 and GH¢500?

This is the pvalue of Z when X = 500 subtracted by the pvalue of Z when X = 100.

From b), when X = 500, Z = 0.94 has a pvalue of 0.8264

From a), when X = 100, Z = -1.56 has a pvalue of 0.0594

0.8264 - 0.0594 = 0.767

76.7% of customers maintains account balance between GH¢100 and GH¢500

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3 years ago

What equations is equivalent to the following equation: x+3=12

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Answer:

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4 years ago

Alguien sabe como hacerlo?

IgorLugansk [536]

Answer:

a)polynomial highest degree of polynomial = 5

b) polynomial highest degree of polynomial = 6

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d)polynomial highest degree of polynomial = 1

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h)polynomial highest degree of polynomial = 8

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i)polynomial highest degree of polynomial =4

Hope it helps

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3 years ago