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2 years ago

Calculate mean: 18, 24, 17, 21, 24, 16, 29, 18

Mathematics

2 answers:

tamaranim1 [39]2 years ago

7 0

Answer: 20.88

Step-by-step explanation:

Add up all numbers and divide by how many numbers there are.

First add up:

18+24+17+21+24+16+29+18=167

Now divide by how many numbers there are: in this case, 8.

167/8=20.875

aksik [14]2 years ago

5 0

Answer:

20.875

Step-by-step explanation:

18+24+17+21+24+16+29+18=167/8=20.875

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Answer:

$\frac{2}{5}±\frac{\sqrt{17}}{5}$

Step-by-step explanation:

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Don't mind the $±$

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2 years ago

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2 years ago

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3 years ago

A credit card company charges 18.6% percent per year interest. Compute the effective annual rate if they compound, (a) annualy,

Darina [25.2K]

Answer:

a) Effective annual rate: 18.6%

b) Effective annual rate: 20.27%

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d) Effective annual rate: 20.44%

Step-by-step explanation:

The effective annual interest rate, if it is not compounded continuously, is given by the formula

$I=C(1+\frac{r}{n})^{nt}-C$

where

C = Amount of the credit granted

r = nominal interest per year

n = compounding frequency

t = the length of time the interest is applied. In this case, 1 year.

In the special case the interest rate is compounded continuously, the interest is given by

$I=Ce^{rt}-C$

(a) Annually

$I=C(1+\frac{0.186}{1})-C=C(1.186)-C=C(1.186-1)=C(0.186)$

The effective annual rate is 18.6%

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There are 12 months in a year

$I=C(1+\frac{0.186}{12})^{12}-C=C(1.2027)-C=C(0.2027)$

The effective annual rate is 20.27%

(c) Daily

There are 365 days in a year

$I=C(1+\frac{0.186}{365})^{365}-C=C(1.2043)-C=C(0.2043)$

The effective annual rate is 20.43%

(d) Continuously

$I=Ce^{0.186}-C=C(1.2044)-C=C(0.2044)$

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2 years ago

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Answer:

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3 years ago