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Eva8 [605]
2 years ago
10

The two-way frequency table below shows the preferred communication method of employees at a company, based on years of employme

nt with the company.
Text
Message Instant
Message Phone Call Email Total
0 to 7 years 36 49 8 21 114
8 or more years 12 22 19 43 96
Total 48 71 27 64 210

What percentage of employees with 8 or more years at the company reported that email is their preferred method of communication?

A.
48.84%
B.
20.48%
C.
67.19%
D.
44.79%
Mathematics
1 answer:
Bas_tet [7]2 years ago
8 0

Using it's concept, the percentage of employees with 8 or more years at the company reported that email is their preferred method of communication is:

D. 44.79%.

<h3>What is a percentage?</h3>

The percentage of an amount a over a total amount b is given by a multiplied by 100% and divided by b, that is:

P = a/b x 100%

In this problem, there are 96 employees with 8 or more years of experience, of which 43 prefer email, hence the percentage is:

P = 43/96 x 100% = 44.79%.

Hence option D is correct.

More can be learned about percentages at brainly.com/question/10491646

#SPJ1

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In a graph what function is a nonvertical line or part of a nonvertical line.
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A function cannot have multiple outputs (y-values) for any given input (x-values). For example, y=2x+3 is a function because no mater what number x represents, there is a single, unique y-value (When x=3 y=9 ). In other words, you can never have two (or more) y-values that correspond to a single x-value. Therefore, a vertical line, for example x=2, cannot be a function because it has an infinite amount of y-values for a single x-value. A horizontal line is a function because there is only one y-value for any given x-value. For example, y=3. No mater what x-value is used, there is only one y-value possible (in this case, y will always equal 3). I am, of course, referring to the cartesian coordinate system, also known as the rectangular coordinate system
5 0
4 years ago
Find the dimensions of a rectangle whose perimeter is 42 m and whose area is 104 m squared
julia-pushkina [17]
P=42 m
1/2 of P=21
1/2 of P= l+w
21=13+8
A=13×8
A=104 m^2. As a result, the length is 13 m, and the width is 8 m. Hope it help!
6 0
3 years ago
Ejercicio Nº 4 Desde la parte superior de un acantilado de 80 metros de altura se dispara horizontalmente una piedra a razón de
vaieri [72.5K]

Answer:

1) La piedra permanece en el aire en 4 segundos.

2) La piedra alcanza una distancia horizontal de 32 metros.

3) La velocidad de la piedra con la que alcanza el suelo es aproximadamente 40.792 metros por segundo.

Step-by-step explanation:

El problema nos indica un caso de tipo parabólico, el cual consiste en la suma de un movimiento horizontal a velocidad y un movimiento uniforme acelerado por la gravedad desde el reposo.

1) El tiempo total que la piedra permanecería en el aire es tiempo requerido entre la parte superior del acantilado y el fondo. La ecuación cinemática que vamos a utilizar es la siguiente:

y = y_{o} + v_{o,y}\cdot t +\frac{1}{2}\cdot g \cdot t^{2} (Ec. 1)

Donde:

y_{o} - Altura inicial, medida en metros.

y - Altura final, medida en metros.

v_{o,y} - Velocidad vertical inicial de la piedra, meadida en metros por segundo.

g - Aceleración gravitacional, medido en metros por segundo al cuadrado.

t - Tiempo, medido en segundos.

Si sabemos que y_{o} = 80\,m, v_{o,y} = 0\,\frac{m}{s} y g = -10\,\frac{m}{s^{2}}, entonces encontramos la siguiente función cuadrática:

-5\cdot t^{2}+80 = 0 (Ec. 2)

El tiempo en el que la piedra permanece en el aire es:

t = 4\,s

La piedra permanece en el aire en 4 segundos.

2) La distancia horizontal es descrita por la siguiente fórmula cinemática:

x = x_{o}+v_{o,x}\cdot t (Ec. 3)

Donde:

x_{o} - Posición horizontal inicial, medido en metros.

x - Posición horizontal final, medido en metros.

v_{o,x} - Velocidad horizontal inicial de la piedra, medida en metros por segundo.

Si sabemos que x_{o} = 0\,m, v_{o,x} = 8\,\frac{m}{s} and t = 4\,s, entonces la distancia horizontal alcanzada por la piedra es:

x = 0\,m + \left(8\,\frac{m}{s}\right)\cdot (4\,s)

x = 32\,m

La piedra alcanza una distancia horizontal de 32 metros.

3) En primer lugar, determinamos los componentes vertical y horizontal de la velocidad final de la piedra por medio de las siguientes fórmulas cinemáticas:

Velocidad final horizontal (v_{x}), medida en metros por segundo.

v_{x} = \frac{x-x_{o}}{t} (Ec. 4)

Velocidad final vertical (v_{y}), medida en metros por segundo.

v_{y} = v_{o,y}+g\cdot t (Ec. 5)

Si x = 32\,m, x_{o} = 0\,m. t = 4\,s, v_{o,y} = 0\,\frac{m}{s} y  g = -10\,\frac{m}{s^{2}}, los componentes de la velocidad final de la piedra son:

v_{x} = \frac{32\,m-0\,m}{4\,s}

v_{x} = 8\,\frac{m}{s}

v_{y} = 0\,\frac{m}{s}+\left(-10\,\frac{m}{s^{2}} \right) \cdot (4\,s)

v_{y} = -40\,\frac{m}{s}

Por último, determinamos la velocidad final de la piedra por Teorema de Pitágoras:

v = \sqrt{v_{x}^{2}+v_{y}^{2}} (Ec. 6)

v = \sqrt{\left(8\,\frac{m}{s} \right)^{2}+\left(-40\,\frac{m}{s} \right)^{2}}

v \approx 40.792\,\frac{m}{s}

La velocidad de la piedra con la que alcanza el suelo es aproximadamente 40.792 metros por segundo.

5 0
3 years ago
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Alexus [3.1K]
It should be Letter B
8 0
3 years ago
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Tony bought a flat-rate box from the post office to send a gift to his mother for Mother’s Day. The dimensions of the medium-siz
Veronika [31]

Answer:

maximum volume of box is 588 cubic inches

Step-by-step explanation:

given data

dimensions box = 14 inches × 12 inches × 3.5 inches

to find out

volume of box

solution

we consider here box dimensions are

length l = 14 inches

width w = 12 inches

and height h = 3.5 inches

so

apply volume formula that is = l × w × h      .....................1

put here value we get

volume = l × w × h

volume = 14 × 12 × 3.5

volume = 588 in³

so maximum volume of box is 588 cubic inches

3 0
4 years ago
Read 2 more answers
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