bandzlvr
bandzlvr bandzlvr
  • 02-01-2019
  • Mathematics
contestada

Can someone answer this fast?

The determinant of matrix A is shown below.

Can someone answer this fastThe determinant of matrix A is shown below class=

Respuesta :

musiclover10045
musiclover10045 musiclover10045
  • 02-01-2019

Replace x and y with the given values, solve the 4 equations in Matrix B:

4(3)+2 = 12+2 = 14

8(1) = 8

7-2(3) = 7-6 = 1

-7(1) +8 = -7+8 = 1


Now using the letter locations from Matrix A solve ad-bc:

14*1 - 8*1 = 14 - 8 = 6


The answer is 6

Answer Link

Otras preguntas

what are the major issues over the retirement age for social security ?
Which best identifies the characteristics of a persuasive essay A. Characters and settings B. Reasons and Evidence C. Researched sources D. Dialogue and stage
Unmoving objects are being acted on by balance forces. TRUE or FALSE?
A box contains one each of $1, $5, $10, $20, and $100 bills. you reach in and withdraw one bill. what is the expected value?
Which atom can accommodate an octet of electrons but doesn't necessarily have to?
Damaged skin cells are replaced through _____. A mitosis B meiosis C aplitting D fertilization
2. A/an _______ bond allows metals to conduct electricity. A. ionic B. metallic C. covalent D. atomic
What are the short-term effects of nicotine and tobacco use? Check all that apply. abnormal tightening of the lung’s airways dental problems and mouth cancer s
Need help!! Please explain too!
Who is not considered a romantic composer, brahms, haydn chopin and schumann?