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2 years ago

What is 6 13/20 as a decimal

Mathematics

1 answer:

Maksim231197 [3]2 years ago

5 0

6.65 would be the answer because 13÷20=.65 and the 6 itself is a whole which together would be 6.65

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1.) A committee would like to determine four people to office, namely, a president, vice president, secretary and treasurer. In

Mekhanik [1.2K]

1). No answer is possible until we know how many people
there are in "this class".

2). If there are 5 choices, and only one of them is correct,
and you close your eyes and choose one of them completely
at random, then the probability of choosing the correct one is ...

1 / 5 = 20% .

7 0

3 years ago

una compañia de relojes desea promocionar un cierto modelo de reloj de pared con motivo de su proximo aniversario. Ellos te soli

Annette [7]

Queremos encontrar las ecuciones de las circunferencias que definen el reloj dado.

Las ecuaciones son:

x^2 + y^2 = 16cm^2

x^2 + y^2 = 196cm^2

Lo primero que debemos hacer para escribir una ecuacion, es definir nuestro eje de coordenadas.

Pondremos el punto (0, 0) en el centro de la cartulina.

Debemos recordar que la ecuación de un circulo de radio R centrado en el punto (a, b) se escribe como:

(x - a)^2 + (y - b)^2 = R^2

En este caso tendremos dos ecuaciones de circulos, ambas centradas en el centro de la cartulina, que es el punto (0, 0).

Para el primer caso tendremos un radio R = 4cm, que es el circulo interno que contiene las horas 12, 3, 6, y 9.

Otro de radio R' = 14cm, que contiene el resto de horas.

Entonces las dos ecuaciones de los circulos seran:

x^2 + y^2 = (4cm)^2 = 16cm^2

x^2 + y^2 = (14cm)^2 = 196cm^2

Si quieres aprender más. puedes leer.

brainly.com/question/24021353

7 0

2 years ago

The following data was collected from 10 visitors to Disneyland. A researcher stood at the entrance gate and interviewed the fir

Ludmilka [50]

Answer:

<u>The standard deviation for the sample of 10 families is 1.68 (Rounding to two decimal places)</u>

Step-by-step explanation:

1. The first step to calculate the standard deviation is to find out the mean, this way:

Mean = (1 + 1 + 2 + 2 + 2 + 2 + 3 + 3 + 4 + 7)/10

Mean = 27/10 = 2.7

2. Now we calculate the variance, this way:

Variance = [(1 - 2.7)²+(1 - 2.7)²+(2 - 2.7)²+(2- 2.7)²+(2 - 2.7)²+(2 - 2.7)²+(3- 2.7)²+(3 - 2.7)²+(4 - 2.7)²+(7- 2.7)²]/10

Variance = [2.89 + 2.89 + 0.49 + 0.49 + 0.49 + 0.49 + 0.09 + 0.09 + 1.69 + 18.49]/10

Variance = 28.1/10 = 2.81

3. Finally we calculate the standard deviation, this way:

Variance = Standard deviation²

√Variance = Standard deviation

√2.81 = Standard deviation

<u>Standard deviation = 1.68 (Rounding to two decimal places)</u>

6 0

3 years ago

Is 14.875 a irrational number?

Tresset [83]

Answer:yes

Step-by-step explanation:it is

8 0

3 years ago

Read 2 more answers

Pls,pls,pls,help me I will give lots of pound 100+ points

Bond [772]

Answer:

3log(10) -2log(5) ≈ 1.60206
no; rules of logs apply to any base. ln(x) ≈ 2.302585×log(x)
no; the given "property" is nonsense

Step-by-step explanation:

The given expression expression can be simplified to ...

3log(10) -2log(5) = log(10^3) -log(5^2) = log(1000) -log(25)

= log(1000/25) = log(40) . . . . ≠ log(5)

≈ 1.60206

Or, it can be evaluated directly:

= 3(1) -2(0.69897) = 3 -1.39794

= 1.60206

The properties of logarithms apply to logarithms of any base. Natural logs and common logs are related by the change of base formula ...

ln(x) = log(x)/log(e) ≈ 2.302585·log(x)

The given "property" is nonsense. There is no simplification for the product of logs of the same base. There is no expansion for the log of a sum. The formula for the log of a power does apply:

$\log(a)\log(b)=\log(a^{\log(b)})=\log(b^{\log(a)})$

Numerical evaluation of Mr. Kim's expression would prove him wrong.

log(3)log(4) = (0.47712)(0.60206) = 0.28726

log(7) = 0.84510

0.28726 ≠ 0.84510

log(3)log(4) ≠ log(7)

4 0

1 year ago