answer.
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
garik1379 [7]
2 years ago
6

Determine the value of the following:

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

Answer:

C=\left[\begin{array}{cc}1&4\\1&6\end{array}\right]

Step-by-step explanation:

<u>Matrix Addition</u>

Given two matrices A and B, the sum of A+B can only be defined if both matrices are of the same order, i.e. they have the same number of files and columns. If that was the case, then the sum of A and B, call it C is defined as

c_{i,j}=a_{i,j}+b_{i,j}

In other words, the resulting sum at row i and column j is the sum of the elements in that exact position

We are given the matrices

\left[\begin{array}{cc}-2&3\\2&4\end{array}\right] +\left[\begin{array}{cc}3&1\\-1&2\end{array}\right]

Adding them at the same position, we have

C=\left[\begin{array}{cc}-2+1&3+1\\2-1&4+2\end{array}\right]

C=\left[\begin{array}{cc}1&4\\1&6\end{array}\right]

Select option c.

You might be interested in
Please please please help me
Gwar [14]
A) 15/4 = 4/4+4/4+4/4+3/4= 3 3/4
B)9/2= 2/2+2/2+2/2+2/2+1/2= 4 1/2
c = 26/12 = 12/12 + 12/12 + 2/12 =  2 2/12
d) 20/6 = 6/6 + 6/6 + 6/6 + 2/6 = 3 2/6
8 0
2 years ago
A 16-inch candle is lit and burns at a constant rate of 0.8 inches per hour. Let t represent the number of hours since the candl
Tamiku [17]

Answer:

<h2>See the explanation.</h2>

Step-by-step explanation:

a.

The initial length of the candle is 16 inch. It also given that, it burns with a constant rate of 0.8 inch per hour.

After one hour since the candle was lit, the length of the candle will be (16 - 0.8) = 15.2 inch.

After two hour since the candle was lit, the length of the candle will be (15.2 - 0.8) = 14.4 inch. The length of the candle after two hours can also be represented by {16 - 2(0.8)}.

Hence, the length of the candle after t hours when it was lit can be represented by the function, f(t) = 16 - 0.8t. f(t) = 0 at t = 20.

b.

The domain of the function is 0 to 20.

c.

The range is 0 to 16.

8 0
2 years ago
Which shows the correct substitution of the values a, b, and c from the equation 0 = – 3x2 – 2x + 6 into the quadratic formula?
lbvjy [14]

Answer:

x = StartFraction negative

(negative 2) plus or minus StartRoot (negative 2) squared minus 4 (negative 3)(6) EndRoot Over 2(negative 3) EndFraction

Step-by-step explanation:

0 = – 3x2 – 2x + 6

It can still be written as

– 3x2 – 2x + 6 =0

Quadratic formula=

-b+or-√b^2-4ac/2a

Where

a=-3

b=-2

c=6

x= -(-2)+ or-√(-2)^2-4(-3)(6)/2(-3)

x = StartFraction negative

(negative 2) plus or minus StartRoot (negative 2) squared minus 4 (negative 3)(6) EndRoot Over 2(negative 3) EndFraction

8 0
2 years ago
An astronomical unit (AU) is the average distance between Earth and the sun. One AU is equal to approximately 150,000,000 km. As
lozanna [386]

Answer:

Can u separate it?

Step-by-step explanation:

5 0
2 years ago
Which equation can pair with x + 2y = 5 to create an inconsistent system?
Charra [1.4K]
X + 2y = 5
x = 5 - 2y

2x + 4y = 3
2(5-2y) + 4y = 3
10 - 4y + 4y = 3
10 ≠ 3

5x + 2y = 3
5(5-2y) + 2y = 3
25 - 10y + 2y = 3
-8y = 3 - 25
-8y = -22
y = -22/-8
y = 2.75

6x + 12y = 30
6(5-2y) + 12y = 30
30 -12y + 12y = 30
30 = 30

3x + 4y = 8
3(5-2y) + 4y = 8
15 - 6y + 4y = 8
-2y = 8 - 15
-2y = -7
y = -7/-2
y = 3.5

An inconsistent system is a system of equation that has NO SOLUTIONS.

2x + 4y = 3 is the equation to be paired with x + 2y = 50 to create an inconsistent system.


6 0
2 years ago
Read 2 more answers
Other questions:
  • Lauren spent 3/5 of her money on a refrigerator. The refrigerator cost $756. How much money did she have left?
    7·1 answer
  • Bill Payne visits his local bank to see how long it will take for $1,000 to amount to $1,900 at a simple interest rate of 12 ½%.
    14·1 answer
  • The semicircle shown at left has center X XX and diameter W Z ‾ ​WZ ​ ​​ start overline, W, Z, end overline. The radius X Y ‾ ​X
    7·1 answer
  • Study the road plan shown in the figure. A service station will be built on the highway, and a road will connect it with Cray. H
    7·2 answers
  • What is the midpoint of the segment shown below?
    8·1 answer
  • What is the sum of the matrices shown below?
    10·2 answers
  • Herky was given the following system of equations to solve. 3 x minus 2 y = 17. x minus 3 y = 1.
    15·2 answers
  • The population of a parish is growing with an annual percentage rate compounded continuously. The population reaches 1.1 times i
    11·2 answers
  • Dan pays £220 per week in rent. His landlord decides to increase the rent by 2.5%. How much rent does he pay now?
    7·2 answers
  • 1 Solve 8x - 9 = 15 for x.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!