If two 2x2 matrices are inverses of each other, then multiplying them will result in what matrix below?

Mathematics

1 answer:

docker41 [41]3 years ago

3 0

inverse of a matrix A is defined as $AA^{-1}=I$

where I is the identity matrix of the respective order.

You might be interested in

2. Which is equivalent to the calculator output 8.954 E - 15?

anyanavicka [17]

Answer: 8.954 x 10^-15

Step-by-step explanation:

i took a test with this question and this was the answer

8 0

3 years ago

HELP PLZ!!!!- In 2012, on average, about 9.46 × 10^-1 pound of potatoes was produced for every 2.3 × 10^-5 power acre harvested.

sashaice [31]

Answer: The answer is 41.13 pounds (approx.).

Step-by-step explanation: Given that the average production of potatoes in 2012 was 0.946 pounds for every 0.000023 power acre harvested. We need to calculate the pounds of potatoes produced on average for each acre harvested.

For that, we need to divide the pounds of potatoes by number of acres harvested.

In 0.000023 acre harvested, ponds of potatoes = 0.946 ponds.

Therefore, in 1 acre harvested, pounds of potatoes is given by

$p=\dfrac{0.946}{0.000023}=41.13~\textup{(approx.)}$

Thus, the answer is 41.13 pounds (approx.).

3 0

3 years ago

2) Jimmy was going to sell all of his stamp

PSYCHO15rus [73]

48 stamps because 29-5=24 , 24x2=48

8 0

3 years ago

What is the solution to the given system of equations. y = 4x - 3 y = -X- 13

san4es73 [151]

Y = 4x - 3
y = -x - 13
Since both equations equal y, we will just substitute both equations to equal each other.
4x - 3 = -x - 13
+x on both sides
5x - 3 = -13
+3 on both sides
5x = -10
/5 on both sides
x = -2

Substitute x = -2 into one of the equations.
y = -x - 13
y = -(-2) - 13
y = 2 - 13
y = -11

To check answer, plug in both x and y values into one of the equations.
y = -x -13
-11 = -(-2) - 13
-11 = 2 - 13
-11 = -11

Answer:
x = -2
y = -11

5 0

3 years ago

I need help please :) Answer opts. 35 30 22 28

Savatey [412]

Answer:28

Step-by-step explanation:

6 0

4 years ago