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
Paha777 [63]
3 years ago
7

Identify each matrix A such that A^2 has identical diagonal elements?

Mathematics
1 answer:
Maksim231197 [3]3 years ago
6 0

Answer:

The correct matrices are:

Matrix:

7 1 5

1 5 7

5 7 1

all diagonal elements of A^2 are: 7^2 + 1^2 + 5^2

Matrix:

9   18  27

27 -9  18

18  27 9

all diagonal elements of A^2 are: 9^2 + 27*18 + 18*27   or (-9)^2

Matrix:

8 1 6

6 8 1

1 6 8

all diagonal elements of A^2 are: 8^2 + 6*1 + 1*6

You might be interested in
Factor 9(x + 4)^2 + (x + 4) – 10 completely.<br> HELP!!!
AleksAgata [21]

Answer:

99

Step-by-step explanation:

7 0
3 years ago
My friend sent me this to work on, but I’m confused on how to do it :(
marin [14]

Answer:

35 degrees.

Step-by-step explanation:

It's a reflective sideway triangle.

8 0
2 years ago
Read 2 more answers
The recipe calls for 2 3/4 cups of tomatoes. How many cups of tomatoes, written as a fraction greater than one, are used in the
emmainna [20.7K]

Answer:

fxhgnxff

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is a product 1/2×5?​
german
1/2 x 5 equals 2.5

hope that helps lol
4 0
3 years ago
Two angles of a quadrilateral are of measures 75° and 117° respectively and the other two angles are equal find the measure of e
insens350 [35]

<u>Answer:</u>

<u>Step-by-step explanation:</u>

The sum of interior angles of a quadrilateral is 360°.

If we consider the measure of one of the unknown angles to be x°, we can set up the following equation:

x + x + 75^\circ + 117^\circ = 360^\circ

Now we can solve for x:

⇒ 2x + 192^\circ = 360^\circ

⇒ 2x = 360^\circ - 192^\circ        [subtracting 192° from both sides]

⇒ 2x = 168^\circ

⇒ x = \frac{168^\circ}{2}                      [dividing both sides by 2]

⇒ x = \bf84^\circ

Therefore, the other two angles each have a measure of 84°.

4 0
1 year ago
Other questions:
  • Neil is analyzing a quadratic function f(x) and a linear function g(x). Will they intersect?
    15·1 answer
  • If f(x) = -2x - 3, find f(0) - 7. <br><br><br>help please!! I will give brainliest!!!!
    10·1 answer
  • Emma will roll two number cubes, labeled 1 through 6. She will record the sum of the two numbers after each roll. She will roll
    5·1 answer
  • How many edges does a tetrahedron have? 6 9 12 18
    8·1 answer
  • What graph shows the line y=2/5x-3
    8·1 answer
  • The mean score was 72. The standard deviation was 7 percentage-points. Based on this information, what is the best
    15·1 answer
  • Math: Problem-Solving with equations.
    10·2 answers
  • Andrew has $65.50. He is paid $11.50 for each earbud case he sells. He has a goal of earning $146. Write an equation to determin
    10·1 answer
  • Linnea's company's revenue in 2017 is 36/25 of its revenue in 2016.
    14·2 answers
  • A radio is on sale for $76.50 at a 15% discount. What was the original selling price?
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!