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
joja [24]
2 years ago
12

When x =6 y=2 What is: 2(3x-6y)^2

Mathematics
2 answers:
sashaice [31]2 years ago
6 0

Answer:

2(3x - 6y) ^{2}  = 72

Step-by-step explanation:

2(3x - 6y) ^{2}

x = 6 \:  \: y = 2

Substitute in the values

2(3(6) - 6(2))^{2}

2(18 - 12) ^{2}

2(6) ^{2}

2(36)

= 72

ikadub [295]2 years ago
3 0

Answer:

72

Step-by-step explanation:

We first substitute x = 6 and y = 2 into the equation

2(3 x (6) - 6 x (2)) ^ 2

First we multiply all the numbers in the bracket

2(18 - 12) ^ 2

Now we minus the numbers in the bracket

2(6)^2

Now we use the indice rule to do 6^2 which is 36

And then we multiply 36 by 2 which is 72

Hope it helps :)

You might be interested in
Please Help 11th Grade Math ASAP<br> It is really hard so I need someone really smart.
Zolol [24]

Answer:

i am in 7th grade

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Julio checked the temperature of a bag of frozen peas and found it was at −12°C. After he left the bag out of the freezer for an
andrey2020 [161]

The temperature increased by 19°C

6 0
3 years ago
2. Solve the system of equations. Write your answer in parametric vector notation. X, +5x2 + 4x3 + 3x4 +9xs = 18 2x, +6x2 + 4x3
ratelena [41]

Answer:

The system is inconsistent.

Step-by-step explanation:

The system is

x_1+5x_2+4x_3+3x_4+9x_5=18\\2x_1+6x_2+4x_3+6x_4+6x_5=28\\3x_1+7x_2+4x_3+10x_4+x_5=41\\4x_1+6x_2+2x_3+7x_4+4x_5=29

The associated matrix to the system is

\left[\begin{array}{cccccc}1&5&4&3&9&18\\2&6&4&6&6&28\\3&7&4&10&1&41\\4&6&2&7&4&29\end{array}\right]

Now we use row operations to find the echelon form of the matrix:

1. We substract to row 2, two times the row 1.

We substract to row 3, three times the row 1.

We substract to row 4, four times the row 1 and obtain the matrix

\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&-4&-4&0&-12&-8\\0&-8&-8&1&-26&-13\\0&-14&-14&-5&-32&-43\end{array}\right]

2. We multiply the second row of the preview step by -1/4. We obtain the matrix

\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&-8&-8&1&-26&-13\\0&-14&-14&-5&-32&-43\end{array}\right]

3.

We add to row 3, eight times the row 2.

We add to row 4, fourtheen times the row 2 and obtain the matrix

\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&0&0&1&-2&3\\0&0&0&-5&10&-155\end{array}\right]

4. We add to row 4 of the preview step, five times the row 3 and obtain the matrix

\left[\begin{array}{cccccc}1&5&4&3&9&18\\0&1&1&0&3&2\\0&0&0&1&-2&3\\0&0&0&0&0&-140\end{array}\right]

Using backward substitution we have that

0x_5=-140, then 0=-140 and this is absurd. Then The system is inconsistent.

4 0
3 years ago
Find the equation of the line that has slope -5 and passes through the point (1,-7)
RUDIKE [14]

Answer: y=-5x-2

Step-by-step explanation:

5 0
3 years ago
Please help im so lost​
qwelly [4]

Answer:

are you allowed to email your teacher about it

that's only if you are doing remote school

5 0
3 years ago
Other questions:
  • Write the product as a trinomial.(k – 1)(k – 4)
    12·1 answer
  • Use distributive property to remove the parenthesis:<br> 7(w-6)
    14·2 answers
  • Triangle JKL was translated 12 units vertically and then reflected over the y-axis to create triangle J'K'L' What is the value o
    13·1 answer
  • Help with 1 4 and 5<br> I don't get it
    10·1 answer
  • A culture started with 2000 bacteria after 3 hours it grew to 2,400 bacteria. Predict how many bacteria will be present after 18
    6·2 answers
  • "All the religions are equal,the difference is their name ".Justify.<br>​
    5·1 answer
  • Write the equation of a line that has a slope of -3 and y-intercept of 10
    7·1 answer
  • Pls help me on this question
    7·1 answer
  • Which expression is an equivalent expression for 2(6y – 4)?
    7·1 answer
  • What is the probability of tossing a coin three times and getting tails each time?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!