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
Setler [38]
3 years ago
7

Will Mark Brainlest helpppp​

Mathematics
1 answer:
Anvisha [2.4K]3 years ago
6 0

Answer:

R = \left[\begin{array}{ccc}-3&-2\\1&-3\\\end{array}\right]

Step-by-step explanation:

P - Q + R = I ( I is the identity matrix )

\left[\begin{array}{ccc}2&4\\3&5\\\end{array}\right] - \left[\begin{array}{ccc}-2&2\\4&1\\\end{array}\right] + R = \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right] ( subtract corresponding elements )

\left[\begin{array}{ccc}2-(-2)&4-2\\3-4&5-1\\\end{array}\right] + R = \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right]

\left[\begin{array}{ccc}4&2\\-1&4\\\end{array}\right] + R = \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right]

R = \left[\begin{array}{ccc}1&0\\0&1\\\end{array}\right] - \left[\begin{array}{ccc}4&2\\-1&4\\\end{array}\right] = \left[\begin{array}{ccc}-3&-2\\1&-3\\\end{array}\right]

You might be interested in
Please help!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
dexar [7]
Only raul has correctly identified a base and corresponding height..... the remaining haven't.....
in the case of mark he's incorrect because any side can be the base but what matters is that the base must always be perpendicular to the height
in kiki's case... she's wrong because what she identified is the slant height... not height
4 0
3 years ago
Best Deal 1
german

d. $0.53 because..

3/5.25 = 1/1.75

5/9.75 = 1.95

7/12.60 = 1.80

10/14.20 = 1.42

12/18.24 = 1.52

then do ;

most expensive deal - least expensive deal = how much he’ll save

1.95 - 1.42 = .53

4 0
2 years ago
Read 2 more answers
Find the equation of the cosine graphed.
Lunna [17]

Answer:

C) y = -cos(x) +2

Step-by-step explanation:

The centerline is 2, so 2 is added. That leaves out choices A and B.

There is a minimum (not a maximum) at x=0, so the multiplier is negative, eliminating choice D.

The correct equation is that of C: y = -cos(x) +2.

7 0
2 years ago
If the exchange rate of 1 dollar is rs 72.45, how many dollar can be exchanged for rs 1449?
Shalnov [3]

Answer:

20

Step-by-step explanation:

1449÷72.45=20

4 0
2 years ago
Find the mean for the data set. 7, 6, 7, 7, 7, 4, 4, 6, 5, 5, 7
saul85 [17]

Answer:

5.909

Step-by-step explanation:

8 0
2 years ago
Other questions:
  • Two questions. Which shows the use of the distributive property?
    9·2 answers
  • Use remainder theorem to find f(4) f(x) = 2x^4-5x^3-8x^2-13x-6
    13·1 answer
  • Micah has the coins shown below.
    13·2 answers
  • What is the quadratic formula song?
    15·1 answer
  • What does<br> x=<br> m and m Please help<br> *Marking Brainiest
    5·1 answer
  • What is the approximate value of arcsin(0.58).
    13·1 answer
  • PLS HELP URGENT AND EASY (FIND AREA)
    9·1 answer
  • WILL GIVE BRAINLIEST AND 30 POINTS
    10·2 answers
  • What is the solution to the following equation? X +(-13) = -5. A. X= 18 B. X = 8 C. x -18 D. X = -8​
    9·1 answer
  • Evaluate the expression when a = 2, b=8 and c=12 c-2(a)+b​
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!