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
Rzqust [24]
3 years ago
12

Complete the multiplication: AB. A. B. C. D.

Mathematics
1 answer:
Firdavs [7]3 years ago
6 0
These array of numbers shown above are called matrices. These are rectangular arrays of number that are arranged in columns and rows. It is mostly useful in solving a system of linear equations. For example, you have these equations

x+3y=5
2x+y=1
x+y=10

In matrix form that would be

\left[\begin{array}{ccc}1&3&5\\2&1&1\\1&1&10\end{array}\right]

where the first column are the coefficients of x, the second column the coefficients of y and the third column is the constants, When you multiple matrices, just multiply the same number on the same column number and the same row number. For this problem, the solution is

\left[\begin{array}{ccc}3*2&0*8\\2*0.6&-1*3\end{array}\right] =  \left[\begin{array}{ccc}6&0\\1.2&-3\end{array}\right]

You might be interested in
Day one finding a weeb finish this sentence and I will give you brainiest
Hatshy [7]

Answer:

weeb -_-

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
At a vehicle dealership 5 cars are sold for 2 trucks. Last year the dealership sold 128 trucks how many cars did they sell?
baherus [9]
The answer should be 64 cars sold at the dealership
7 0
2 years ago
Factor x2 + 29x - 30.
marysya [2.9K]
Ok the w to your question is to cross multiply <span>216=9m m=24

</span>
8 0
3 years ago
Read 2 more answers
Please help, must be done by today
Ostrovityanka [42]

The answer is -5x + 4y = -20

8 0
3 years ago
Help me ill give branilyest
Luda [366]

Answer:

The unit price is the cost per unit of an item or the cost/price for each item.

1) <u>4$</u> per pound. By simplifying the proportion (constant ratio) between the cost, and the pounds of apples. 3 pounds of apples cost 12$ → 3/3 pounds of apples cost 12/3$ → 4 dollars for every pound.

2) <u>2$</u> per pound. By evaluating the rate of change (change in the y over x or dependent variable over independent) in the equation: y = <u>2</u>x. y is the cost in dollars, and x is the pounds of apples. So there are 2 pounds (weight) of apples for every dollar.

3) <u>3$</u> per pound. Given a graph with a y scaled by 3, and an x scaled by 1 with a graph y = x or 1 unit up for every unit right. This must be equivalent to y = 3x. Where y is labeled as the cost in dollars, and x as the weight in pounds. So there are 3 dollars for every pound of apples.

4) Store B. Because 2 is less than 3 which is less than 4.

7 0
3 years ago
Read 2 more answers
Other questions:
  • The area of a triangular block is 64 square inches. If the base of the triangle is twice the height, how long are the base and h
    10·2 answers
  • P=IRT literal equations
    11·1 answer
  • 33.8 divided by 32.5
    14·1 answer
  • Please help. Will give brainliest
    7·1 answer
  • The strip below is divided into 10 equal parts. Fill in the missing fractions and percentages.Note that your fractions don't nee
    13·1 answer
  • PLSSS HELPPPP I WILLL GIVE YOU BRAINLIEST!!!!!!
    13·1 answer
  • How many different 5-digit whole
    8·1 answer
  • A farmer's annual income is represented by the variable x. The farmer will pay 25% of his income for federal taxes and 9% of his
    11·1 answer
  • The perimeter p of the rectangle equals 30. Find the value of X?
    6·1 answer
  • In the diagram below. C is an equal distance to A and B.
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!