1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
emmainna [20.7K]
2 years ago
11

(12 − 4) − (6 ÷ 2) − (2 x 2)

Mathematics
1 answer:
Fynjy0 [20]2 years ago
5 0

Answer:

-2

Step-by-step explanation:

hope this helps

You might be interested in
What is the next number in the sequence 0,2,6,12
pashok25 [27]

Answer:

20

Step-by-step explanation:

We are adding 2

0+2 =2

Then 4

2+4 = 6

Then 6

6+6=12

Then we would add 8

12+8 = 20

7 0
3 years ago
Read 2 more answers
What is 27.560 - 28.620
Vlad [161]
-(28.62-27.56)
= -1.06 or -53/50,-13/50
4 0
3 years ago
Read 2 more answers
The weights of bags of ready-to-eat salad are normally distributed with a mean of 300 grams and a standard deviation of 9 grams.
mestny [16]

Answer: 2.5% of the bags weigh less than 282 grams.

Step-by-step explanation: Just took the test and this was the correct answer! :)

8 0
3 years ago
Rate my hand writing 1-10
Scorpion4ik [409]
10/10 i could never
8 0
3 years ago
Read 2 more answers
Lagrange multipliers have a definite meaning in load balancing for electric network problems. Consider the generators that can o
Ivahew [28]

Answer:

The load balance (x_1,x_2,x_3)=(545.5,272.7,181.8) Mw minimizes the total cost

Step-by-step explanation:

<u>Optimizing With Lagrange Multipliers</u>

When a multivariable function f is to be maximized or minimized, the Lagrange multipliers method is a pretty common and easy tool to apply when the restrictions are in the form of equalities.

Consider three generators that can output xi megawatts, with i ranging from 1 to 3. The set of unknown variables is x1, x2, x3.

The cost of each generator is given by the formula

\displaystyle C_i=3x_i+\frac{i}{40}x_i^2

It means the cost for each generator is expanded as

\displaystyle C_1=3x_1+\frac{1}{40}x_1^2

\displaystyle C_2=3x_2+\frac{2}{40}x_2^2

\displaystyle C_3=3x_3+\frac{3}{40}x_3^2

The total cost of production is

\displaystyle C(x_1,x_2,x_3)=3x_1+\frac{1}{40}x_1^2+3x_2+\frac{2}{40}x_2^2+3x_3+\frac{3}{40}x_3^2

Simplifying and rearranging, we have the objective function to minimize:

\displaystyle C(x_1,x_2,x_3)=3(x_1+x_2+x_3)+\frac{1}{40}(x_1^2+2x_2^2+3x_3^2)

The restriction can be modeled as a function g(x)=0:

g: x_1+x_2+x_3=1000

Or

g(x_1,x_2,x_3)= x_1+x_2+x_3-1000

We now construct the auxiliary function

f(x_1,x_2,x_3)=C(x_1,x_2,x_3)-\lambda g(x_1,x_2,x_3)

\displaystyle f(x_1,x_2,x_3)=3(x_1+x_2+x_3)+\frac{1}{40}(x_1^2+2x_2^2+3x_3^2)-\lambda (x_1+x_2+x_3-1000)

We find all the partial derivatives of f and equate them to 0

\displaystyle f_{x1}=3+\frac{2}{40}x_1-\lambda=0

\displaystyle f_{x2}=3+\frac{4}{40}x_2-\lambda=0

\displaystyle f_{x3}=3+\frac{6}{40}x_3-\lambda=0

f_\lambda=x_1+x_2+x_3-1000=0

Solving for \lambda in the three first equations, we have

\displaystyle \lambda=3+\frac{2}{40}x_1

\displaystyle \lambda=3+\frac{4}{40}x_2

\displaystyle \lambda=3+\frac{6}{40}x_3

Equating them, we find:

x_1=3x_3

\displaystyle x_2=\frac{3}{2}x_3

Replacing into the restriction (or the fourth derivative)

x_1+x_2+x_3-1000=0

\displaystyle 3x_3+\frac{3}{2}x_3+x_3-1000=0

\displaystyle \frac{11}{2}x_3=1000

x_3=181.8\ MW

And also

x_1=545.5\ MW

x_2=272.7\ MW

The load balance (x_1,x_2,x_3)=(545.5,272.7,181.8) Mw minimizes the total cost

5 0
3 years ago
Other questions:
  • Jamie says the value of the expression 1.43 ×(-24/47) is close to −0.75. Does Jamie's estimate seem reasonable? Explain.
    7·1 answer
  • Which choice is the equation of a line that passes through the point (–2, 8) and is perpendicular to the line represented by thi
    10·1 answer
  • 4 (a2+b+c) a=-3 b=9 c=4
    12·1 answer
  • Stuck on question 9.
    13·1 answer
  • What are the next three terms of the arithmetic sequence -18, -13, -8, -3,…?
    5·1 answer
  • Help !! Is the work shown in the simplification below correct? Explain.
    11·2 answers
  • Jenna just got done jumping at the Trampoline center. The total cost of the session was $15.23
    11·2 answers
  • Samuel already has 56 flowers in his garden, and he can also grow 1 flower with every seed packet he uses. How many seed packets
    7·1 answer
  • Somebody please help​
    12·1 answer
  • Leyla anda en bicicleta 81 millas cada semana, cuantas millas anda en 11 semanas
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!