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Nutka1998 [239]
2 years ago
13

I need to know how to solve this

Mathematics
1 answer:
Vikentia [17]2 years ago
7 0

Answer:

K=-6/11

Step-by-step explanation:

3(k/3+4-2k)=3(-9k)

K+12-6k=-27k

12-5k=-27k

12=-22k

K=-6/11

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La fórmula correcta para encontrar el valor del coseno de un ángulo agudo en un triángulo rectángulo dado es:
Digiron [165]

Answer:

El coseno del ángulo esta dado por:

cos(\theta)=\frac{CA}{H}

Step-by-step explanation:

Si tenemos un triángulo recatángulo, el coseno del ángulo está dado por:

cos(\theta)=\frac{CA}{H}

Donde:

  • CA es el cateto adyacente
  • H es la hipotenusa del triángulo

Espero te haya sido de ayuda!

7 0
3 years ago
Please help me with this calculus 1 question
schepotkina [342]

Answer:

tangent: y- \frac{\pi }{4} = -4(x - \frac{\pi }{2})

Step-by-step explanation:

differentiating

y' sin(16x) + 16ycos(16x) = cos(2y) -2xy'sin(2y)

isolating y' to one side and simplifying

y'sin(16x) + 2xy'sin(2y) = cos(2y) - 16ycos(16x)

y'(sin(16x) + 2xsin(2y)) = cos(2y)-16ycos(16x)\\y' = \frac{cos(2y)-16ycos(16x)}{sin(16x) + 2xsin(2y)}

when x = \frac{\pi}{2},

y' = \frac{cos(\frac{\pi }{2} ) - 4\pi cos(8\pi)   }{sin(8\pi) + \pi sin(\frac{\pi }{2}) }

y' = \frac{0-4\pi }{0+\pi } = \frac{-4\pi }{\pi } =-4

tangent: y- \frac{\pi }{4} = -4(x - \frac{\pi }{2})

8 0
4 years ago
The ratio of dogs to cats in the neighborhood was 2 to 3. If there were 30 dogs in the neighborhood, how many cats were there?
jasenka [17]

Answer:  45 cats

Step-by-step explanation: since you got 30 dogs. 2x15= 30 so to get the number of cats do 3x 15= 45cats

4 0
3 years ago
Help help help me please ​
Gnom [1K]

Answer:

1 and 3/4

Step-by-step explanation:

KCF, Keep Change Flip

7/6 divided by 2/3 becomes 7/6 multiplied by 3/2, which is 21/12

This can be simplified to 7/4, or 1 and 3/4

4 0
2 years ago
Which of the following forecasting methods is very dependent on selection of the right individuals who will judgmentally be used
Pachacha [2.7K]

Answer: The answer is option D. <em>Delphi Method Linear regression</em>

Step-by-step explanation: The <em>Delphi method </em>is a forecasting process framework used to estimate the likelihood and outcome of future events by group of <em>expert </em>with <em>relevant Knowledge</em>. The group of experts exchange views, and each independently gives estimates and assumptions to a facilitator who reviews the data and issues a summary report.

The steps involved in delphi method are;

  1. Choose facilitator
  2. Identifying experts
  3. Problem definition
  4. Round one questions
  5. Round two questions
  6. Round three questions
  7. Findings and conclusion

Note:

  • You may choose tom have more than three rounds of questions to reach a more accurate consensus
  • This technique is an iterative process, which tends to get broad range of opinions from the group of experts who will aid generation of forecast

4 0
3 years ago
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