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
Angelina_Jolie [31]
3 years ago
8

Calculate the value for each determinant:

Mathematics
1 answer:
Dafna1 [17]3 years ago
4 0

Answer:

See explanations below

Step-by-step explanation:

Example of how to find the determinant of a 2×2 matrices is as shown;

\left[\begin{array}{ccc}a&b\\c&d&\end{array}\right]

= (a*d)-(b*c)

= ad - bc

Applying this to solve the given questions

1) (3*4) - (-3*-1)

= 12 - (3)

= 9

2) (-12*5)-(-1*12)

= -60 - (-12)

= -60+12

= -48

3) (0*4)-(-1*17)

= 0-(-17)

= 0+17

= 17

4) (8*-1)-(-4*-1)

= -8-(4)

= -8-4

= -12

5) (2*-1)-(2*-1)

= -2-(-2)

= -2+2

= 0

6) 1(1) - 0(0)

= 1 - 0

= 1

You might be interested in
The product of three integers is -3. Determine all of the possible values for the three factors
ryzh [129]
-3, 1, and 1 maybe? That's my guess.
8 0
3 years ago
(b) The man is going to exit the stairwell at the 4th floor, which is at a height of 42 feet above
atroni [7]

The time taken to get to the 4th can be obtained by dividing the distance given by the speed of the lift.

Distance, height from ground to 4th floor = 42 feets

Time taken to get to the 4th floor = t

Recall :

Time = Distance / speed

  • We aren't given the speed of the lift ;

  • Assume speed of lift is 7 ft/sec

The time taken to get to the 4th floor will be :

  • t  =  \frac{42}{7}  = 6 \: seconds

Therefore, to obtain the time taken, divide the distance or height of the 4th floor by the speed of the lift.

Learn more : brainly.com/question/13218948

7 0
2 years ago
24 students in a class took an alegebra test. If 18 passed, what precentage passed.
Sever21 [200]

Answer:

75%

Step-by-step explanation:

What percent of 24 is 18?

24x = 18

x = 18/24 = 3/4 = 0.75 = 75% passed

3 0
3 years ago
Read 2 more answers
7.21 repeating as a fraction
GalinKa [24]

Answer: 721/100 is 7.21 as a simplified fraction.

3 0
2 years ago
Read 2 more answers
Which two transformations must be applied to the graph of y = ln(x) to result in the graph of y = –ln(x) + 64
Neporo4naja [7]

Answer:

A) reflection over the x-axis, plus a vertical translation

6 0
3 years ago
Other questions:
  • Sitting on a park bench, you see a swing that is 100 feet away and a slide that is 80 feet away. The angle between them is 30 de
    6·2 answers
  • Randi takes The stairs at work whenever possible instead of the elevator. She must climb up 51 steps from her office to get to t
    8·2 answers
  • What is 6 divided by 5/9
    6·1 answer
  • 3. Mrs. Noah’s bill, before tax, is $50. The sales tax rate is 3%. Mrs. Noah decides to leave a 2% tip for the gate keeper based
    9·1 answer
  • PLEASE SHOW WORK :))
    8·1 answer
  • A rectangle is <br> Select all that apply
    9·2 answers
  • Please help with this
    11·1 answer
  • HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP HELP I NEED HELP ASAP
    12·2 answers
  • Rewrite in simplest terms: 8(2n + n + 8) − n
    11·1 answer
  • Coreys bank account had a balance of $55. He made a deposit of $364 and withdrawal of $67
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!