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Dimas [21]
3 years ago
7

Find the value of 21 - 18 ÷ 3 · 2. 2 9 18

Mathematics
1 answer:
maks197457 [2]3 years ago
8 0
Order of operations (PEMDAS):
21 - 18 <span>/ 3 * 2
let's add some parenthesese to make it easier to see:
21 - (18 / 3 * 2)
multiplication and division are associative
also: 18 / 3 = 18 * (1/3)
21 - (18 * (1/3) * 2)

21 - (6*2) or 21 - (36 * (1/3)) or 21 - (18 * (2/3))

21 - 12

9
</span> 
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Cerrena [4.2K]

Answer:

D: The function has a hole when x = 3, and vertical asymptotes when x = 0 and x = 5.

Step-by-step explanation:

The given rational function has vertical asymptotes and holes. Remember that an asymptote is placed when the function has undetermined results, when we give a x-value and the y-value cannot be determined, there we say exists an asymptotes, which is a punctual line that represents a discontinuation of the graph, the trace cannot cross that asymptote, it divide the whole function graph.

So, in this case we have to undetermined results when the function has a hole of x = 3, and vertical asymptotes when x = 0 and x = 5.

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What is the probability that a point in the rectangle below is also in the isosceles trapezoid ?
AleksandrR [38]

Answer:

Read the example letter below, and answer the question that follows.

June 14, 2015

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   I hope you are doing well, and that your recent move to Sunnydale went smoothly. We all miss you greatly, but are excited for you to begin your new career in wildlife photography. I am writing to ask if you would consider writing a letter of reference for my application to the summer photography program at the local community college.

   When applying to the program, I immediately thought of you as a potential reference. As my former supervisor, you have directly observed my passion for photography, and my willingness to learn more about the field. I believe that my time working with you at the photography studio was an excellent first step towards my future career in the field. The letter of reference will enable me to continue my growth and experience in photography.

   I hope that you will consider writing the letter of reference, and I truly appreciate your consideration.

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What is the above an example of?

friendly letter

business letter

letter of reference

request letter

Step-by-step explanation:

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The radius of a cone is 2.5 cm, its slant height is 6.5 cm and its height is 6. How many cubic centimeters are in the volume of
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Answer:

V = 12.5π

Step-by-step explanation:

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Unos tambores, con una etiqueta de 30 L, son llenados con una solución proveniente de una tina grande. Se agrega una cantidad al
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A) La probabilidad de que la cantidad total de la solución contenida en 50 tambores sea mayor a 1 500 L es del 50%.

B) La probabilidad de que puedan llenarse 80 tambores sin que se acabe la solución es del 75%.

C) La tina debe contener 2160 litros para que la probabilidad sea 0,9 de que puedan llenarse 80 tambores sin que se acabe la solución.

<h3><u>Desviación estándar</u></h3>

Dado que unos tambores, con una etiqueta de 30 L, son llenados con una solución proveniente de una tina grande, y se agrega una cantidad aleatoriamente de la solución en cada tambor con media de 30.01 L y desviación estándar de 0.1 L, para determinar A) ¿Cuál es la probabilidad de que la cantidad total de la solución contenida en 50 tambores sea mayor a 1 500 L?; B) Si la cantidad total de la solución en la tina es de 2 401 L, ¿cuál es la probabilidad de que puedan llenarse 80 tambores sin que se acabe la solución?; y C) ¿Cuánta solución debe contener la tina para que la probabilidad sea 0,9 de que puedan llenarse 80 tambores sin que se acabe la solución?, se deben realizar los siguientes cálculos:

A)

  • 30.01 - 0.1 = 2.91
  • 30.01 + 0.1 = 3.11
  • 3.11 - 2.91 = 20
  • 3.11 - 3.01 = 10
  • 10 / 20 = 0.5
  • 0.50 = X

B)

  • 2401 / 30.01 = X
  • 79.76 = X
  • 2401 / 30 = X
  • 80 = X
  • (100 + 50) / 2 = 75

C)

  • (80 x 30) x 0.9 = X
  • 2400 x 0.9 = X
  • 2160 = X

Aprende más sobre desviación estándar en brainly.com/question/12402189

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Answer:

212

Step-by-step explanation:

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