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
DedPeter [7]
4 years ago
14

Please help! Correct answer only, please! The answer isn't C. Determine the value of the following if it is possible. If it is n

ot possible, explain. A. B. C. D.

Mathematics
2 answers:
matrenka [14]4 years ago
7 0

Answer:

 | -6      0    |

  |  12   21   |

Step-by-step explanation:

When we multiply a matrix by a scalar, each term in the matrix is multiplied by the scalar

3  | -2  0  |

   |  4   7   |

becomes

 | -6  0  |

  |  12   21   |

slega [8]4 years ago
4 0

Answer:

Solution : C

Step-by-step explanation:

This question involves scalar multiplication. Multiply each of the matrix elements by a scalar, in this case 3.

3\begin{bmatrix}-2&0\\ \:4&-7\end{bmatrix} = \begin{bmatrix}3\left(-2\right)&3\cdot \:0\\ 3\cdot \:4&3\left(-7\right)\end{bmatrix}

Simplifying each element, we receive the following matrix,

\begin{bmatrix}-6&0\\ 12&-21\end{bmatrix} - And hence our solution is option c

You might be interested in
What's 22 + 4? ghdjdhsbsjs
Debora [2.8K]

Answer:LOL 26

Step-by-step explanation: 22=4 IS LIKE EASY BUT IF YOU FORGOT THEN THATS FINE

4 0
4 years ago
Mr. Indigo purchased some trees to plant in his backyard. He bought three oak trees for $23 each and an elm tree for $42. What w
Rom4ik [11]

Answer:

Total cost = $111

Step-by-step explanation:

Given:

Total number of oak tree = 3

Total number of elm tree = 1

Each oak tree cost = $23

Each elm tree cost = $42

Find:

Total cost

Computation:

Total cost = 3[Each oak tree cost] + 1[Each elm tree cost]

Total cost = 3[23] + 1[42]

Total cost = 69 + 42

Total cost = $111

4 0
3 years ago
The number of cows on a farm increased by 60. Because of better food, the amount of milk from each cow went up from 12.8 liters
attashe74 [19]

Answer:

Step-by-step explanation:

Number of cows increased=60

Old quality of milk consumed=12.8litres

New Increase in milk consumed=15litres

Therefore the number of cows in the farm if the quality of milk is 1340litres=y

Therefore, 1cow =15litres

y cows= 1340litres

Crossmultiply:

15litres×ycows=1340litres

Make y the subject of formula

y= 1340÷15

y=89.33cows

Therefore,the number of cows on the farm if farmer gets 1340litres of milk would be 89cows.

6 0
4 years ago
Translation: 6 units right and 3 units down<br> s(-3, 3), C(-1, 4), W(-2,-1)
sdas [7]
S (3, 0)
C (5, 1)
W (4, -4)

Explanation
You take the first number and add 6 to it and you get the new number and then you take the second number and subtract 3 from it

S: -3 + 6 = 3
S- 3 - 3 = 0

C: -1 + 6 = 5
C: 4 - 3 = 1

W: -2 + 6 = 4
W: -1 - 3 = -4
3 0
3 years ago
Can I get the answer for this, but please explain how to find these things out too I don’t quite get it
umka2103 [35]

Answer: y = -2/3x + 5

Step-by-step explanation: you find the slope by finding “rise/run”. the rise is -2, and the run is 3, so the slope is -2/3. the y intercept is 5

5 0
3 years ago
Other questions:
  • Please help! Triangle ABC is similar to triangle DEF. m
    5·1 answer
  • Mala is y years old her sister is 4 years older than mala write an expression in simplest form that repersents the sum of the ag
    6·1 answer
  • Find the coordinates of the center of the following circle.<br><br> (x - 5)² + (y + 3)² = 25
    11·2 answers
  • A 12 oz of thanksgiving stuffing is 2.15,while a 16 oz costs 2.88. Which is the better buy?
    13·1 answer
  • PLEASE HELP!!! Rachel plays a game rolling 2 number cubes numbered 1-6. To win the game she must roll an 11. What is the probabi
    12·1 answer
  • If w = 2, x = 3, y = 5, and z = 6 then evaluate the expression: 9 - z *
    5·1 answer
  • An electronic picture frame is on sale for $80.75.if the price represents a 15% discount from the original price, what price to
    12·2 answers
  • Is 4/10 equal to 2/3
    5·1 answer
  • Solve for the value of x<br><br><br><br> x = <br> degrees
    15·1 answer
  • A doctor's office found that a lower outside temperature did not indicate a change in the number of appointments made. What can
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!