Pre-Calculus

Have pre-calculus questions? Ask a pre-calculus tutor

Connect one-on-one with {0} who will answer your question

for Ashok Kumar can you...

for Ashok Kumar can you please assist me with this?

1. Solve the linear system of equations

x-3y= -6

A unique solution 6,4

B unique solution 6,-1

C infinitely many solutions t, 8t+7

D no solution

2. Solve the linear system of equations

2x-6y=7

5x+2y=10

A unique solution 8,3

B unique solution 37/17, -15/34

C infinitely many solutions t,6t+1

D no solution

3. Solve the linear system of equations

x+16y=9

1/4x+4y=8

A unique solution 9,4

B unique solution 2,-4

C infinitely many solutions t, 8t+9

D No solution

4. Solve the linear system of equations

3x-2y=7

9x-6y=14

A unique solution 6,-4

B unique solution 8,5

C infinitely many solutions t,8t+5

D no solution

5. Solve the linear system of equations

X+3y=9

3x-y=7

A one and only one solution 3,2

B one and only one solution 3,4

C one and only one solution 4,2

D infinitely many solutions 9-3k,k

E no solution

6. Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. Find all solutions whenever they exist.

2x-5y=10

4x-10y= 20

A one and only one solution 0,-2

B one and only one solution 5,0

C one and only one solution 15/2, 1

D infinitely many solutions 5/2k+5,k

E no solution

7. solve the linear system of equations

7/4x-5/2y=2

1/4x+7/2y=8

A unique solution 7,-4

B unique solution 4,2

C infinitely many solutions t,6t+1

D no solution

8. Solve the linear system of equations

9x-7y=63

45x-35y=18

A unique solution 5,-4

B unique solution 3,4

C infinitely many solutions t,8t+1

D no solution

9. A system composed of two linear equations must have at least one solution if the straight lines represented by these equations are nonparallel.

A true

B false

10. Solve the linear system of equations

6x-7y=20

3x+5y=-7

A unique solution 1,-2

B unique solution -9,3

C infinitely many solutions t,4t+5

D no solution

11. Indicate whether the matrix is in row-reduced form

A the matrix is not in row- reduced form

B the matrix is in row reduced form

12. Indicate whether the matrix is in row-reduced form

A the matrix is not in row- reduced form

B the matrix is in row reduced form

13. Indicate whether the matrix is in row-reduced form

A the matrix is not in row- reduced form

B the matrix is in row reduced form

14. Indicate whether the matrix is in row-reduced form

A the matrix is not in row- reduced form

B the matrix is in row reduced form

15. Indicate whether the matrix is in row-reduced form

A the matrix is not in row- reduced form

B the matrix is in row reduced form

16. Solve the system of linear equations using the Gauss-Jordan elimination method.

x-2y=8

3x+4y=4

A (0,2)

B (8,2)

C (4,-6)

D (-2,4)

E (4,-2)

17. Solve the system of linear equations using the Gauss-Jordan elimination method.

3x+2y=14

x-4y=-14

A (2,-14)

B (4,-14)

C (2,4)

D (2,16)

E (4, -14)

18. Solve the system of linear equations using the Gauss-Jordan elimination method.

7x +5y=32

-3x+y=-20

A (7,-3)

B (6,-2)

C (2,-6)

D (-6,2)

E (-7,-2)

19. Solve the system of linear equations using the Gauss-Jordan elimination method.

3x+3y+ z=22

X + z=6

4y-3z=8

A) ( 4, –14, –8 )

B) ( –19, 4, 8 )

C) ( 8, –14, –4 )

D) ( 14, 4, 8 )

E) ( 14, –4, –8 )

20. Solve the system of linear equations, using the Gauss-Jordan elimination method.

2x+5y-2z=14

5x-6y+2z=0

4x- y+3z=-7

A x=2,y=6,z=5

B x=2,y=5,z=-5

C x=2,y=0,z=5

D x=2,y=0,z=-5

E x=5, y=0,z=-2

1. Solve the linear system of equations

x-3y= -6

A unique solution 6,4

B unique solution 6,-1

C infinitely many solutions t, 8t+7

D no solution

2. Solve the linear system of equations

2x-6y=7

5x+2y=10

A unique solution 8,3

B unique solution 37/17, -15/34

C infinitely many solutions t,6t+1

D no solution

3. Solve the linear system of equations

x+16y=9

1/4x+4y=8

A unique solution 9,4

B unique solution 2,-4

C infinitely many solutions t, 8t+9

D No solution

4. Solve the linear system of equations

3x-2y=7

9x-6y=14

A unique solution 6,-4

B unique solution 8,5

C infinitely many solutions t,8t+5

D no solution

5. Solve the linear system of equations

X+3y=9

3x-y=7

A one and only one solution 3,2

B one and only one solution 3,4

C one and only one solution 4,2

D infinitely many solutions 9-3k,k

E no solution

6. Determine whether the system of linear equations has one and only one solution, infinitely many solutions, or no solution. Find all solutions whenever they exist.

2x-5y=10

4x-10y= 20

A one and only one solution 0,-2

B one and only one solution 5,0

C one and only one solution 15/2, 1

D infinitely many solutions 5/2k+5,k

E no solution

7. solve the linear system of equations

7/4x-5/2y=2

1/4x+7/2y=8

A unique solution 7,-4

B unique solution 4,2

C infinitely many solutions t,6t+1

D no solution

8. Solve the linear system of equations

9x-7y=63

45x-35y=18

A unique solution 5,-4

B unique solution 3,4

C infinitely many solutions t,8t+1

D no solution

9. A system composed of two linear equations must have at least one solution if the straight lines represented by these equations are nonparallel.

A true

B false

10. Solve the linear system of equations

6x-7y=20

3x+5y=-7

A unique solution 1,-2

B unique solution -9,3

C infinitely many solutions t,4t+5

D no solution

11. Indicate whether the matrix is in row-reduced form

A the matrix is not in row- reduced form

B the matrix is in row reduced form

12. Indicate whether the matrix is in row-reduced form

A the matrix is not in row- reduced form

B the matrix is in row reduced form

13. Indicate whether the matrix is in row-reduced form

A the matrix is not in row- reduced form

B the matrix is in row reduced form

14. Indicate whether the matrix is in row-reduced form

A the matrix is not in row- reduced form

B the matrix is in row reduced form

15. Indicate whether the matrix is in row-reduced form

A the matrix is not in row- reduced form

B the matrix is in row reduced form

16. Solve the system of linear equations using the Gauss-Jordan elimination method.

x-2y=8

3x+4y=4

A (0,2)

B (8,2)

C (4,-6)

D (-2,4)

E (4,-2)

17. Solve the system of linear equations using the Gauss-Jordan elimination method.

3x+2y=14

x-4y=-14

A (2,-14)

B (4,-14)

C (2,4)

D (2,16)

E (4, -14)

18. Solve the system of linear equations using the Gauss-Jordan elimination method.

7x +5y=32

-3x+y=-20

A (7,-3)

B (6,-2)

C (2,-6)

D (-6,2)

E (-7,-2)

19. Solve the system of linear equations using the Gauss-Jordan elimination method.

3x+3y+ z=22

X + z=6

4y-3z=8

A) ( 4, –14, –8 )

B) ( –19, 4, 8 )

C) ( 8, –14, –4 )

D) ( 14, 4, 8 )

E) ( 14, –4, –8 )

20. Solve the system of linear equations, using the Gauss-Jordan elimination method.

2x+5y-2z=14

5x-6y+2z=0

4x- y+3z=-7

A x=2,y=6,z=5

B x=2,y=5,z=-5

C x=2,y=0,z=5

D x=2,y=0,z=-5

E x=5, y=0,z=-2

Show More

Show Less

Was this answer helpful?

Describe your issueThe assistant will guide you

Chat 1:1 with a tutorLicensed Experts are available 24/7

100% satisfaction guaranteeGet all the answers you need

Related Pre-Calculus Questions

I saw you did this about a year ago. Can you help me

I saw you did this about a year ago. Can you help me out...rather quickly? Show All calculation!! 1. Solve the following Expression 5 (B - 4) =10 2. Solve the following equation for the variable L. p … read more

Show All calculation!!1. Solve the following Expression 5

Show All calculation!! 1. Solve the following Expression 5 (B - 4) =10 2. Solve the following equation for the variable L. p = 2L +2w 3. Complete the following table X Y -1 0 4 4. Find the Slope-inter… read more

1. Solve the following equation. Determine whether the equation

1. Solve the following equation. Determine whether the equation is an identity, conditional equation, or an inconsistent equation: 7(x - 4) = x + 2 2. solve the following equation. Determine whether t… read more

Question 1 of 40 2.5 PointsUse Gaussian elimination to find

Question 1 of 40 2.5 Points Use Gaussian elimination to find the complete solution to the following system of equations, or show that none exists. 2w + x - y = 3 w - 3x + 2y = -4 3w + x - 3y + z = 1 w… read more

1.If a merchant deposits $1,500 annually at the end of each

1.If a merchant deposits $1,500 annually at the end of each tax year in an IRA account paying interest at the rate of 10%/year compounded annually, how much will she have in her account at the end of … read more

Question 1 Solve the following system of equations using matrices.

Question 1 Solve the following system of equations using matrices. Use Gaussian elimination with back substitution or Gauss-Jordan elimination. x + y + z = 4 x - y - z = 0 x - y + z = 2 A. {(3, 1, 0)}… read more

Show All calculation!!1. Solve the following Expression 5

Show All calculation!! 1. Solve the following Expression 5 (B - 4) =10 2. Solve the following equation for the variable L. p = 2L +2w 3. Complete the following table X Y -1 0 4 4. Find the Slope-inter… read more

(For guru2009 only) 1. 2x-5y=10; for y Y=___ (Use integers

(For guru2009 only) 1. 2x-5y=10; for y Y=___ (Use integers or fractions for any numbers in the expression. Simplify your answer) 2. Retail prices in a department store are obtained by marketing up the… read more

1. Simplify the expression 2ab4 − 3a2b2 − ab4 + a2b2. A. a2b8

1. Simplify the expression 2ab4 − 3a2b2 − ab4 + a2b2. A. a2b8 − a2b8 − 2a4b4 B. ab4 − 2a2b2 C. 2a2b8 − 3a4b4 D. 0 2. Graph the polynomial function f(x) = x3 − 1. A. B. C. D. 3. Completely factor the e… read more

I need this A.S.A.P.: PLEASE 6, Solve by the elimination method. 4s

I need this A.S.A.P.: PLEASE 6, Solve by the elimination method. 4s – d = 17 s + 4d = 34 What is the solution of the system? s = ____ d = _____ 7, solve the system by equations by graphing. - 10x = 10… read more

10) Solve the system of equations: 3x – 5y = 7 2x + 3y =

10) Solve the system of equations: 3x – 5y = 7 2x + 3y = 30 A. { (–1,–2) } B. { (3,8) } C. { (9,4) } D. { (6,1) } 11) Solve the system of equations: 3x + 2y = 18 y = 3x A. { (1,3) } B. { (3,9) } C. { … read more

1.Solve the system by the subsitution method x^2+y^2=20 x-y=-2 2.

1.Solve the system by the subsitution method x^2+y^2=20 x-y=-2 2. solve the following system by the substitution method x-y=1 x^2-xy-y^2=-1 the solution set is 3.Solve the system by the addition metho… read more

1. Solve the equations by substition. 2x+y=12 y=4x 2.

1. Solve the equations by substition. 2x+y=12 y=4x 2. Solve the system using the substitution method. x-10y=57 7y-8x= -91 3. 3x+4y=2 x+y=2 4. 15x-10y=5 15y= -5+10x 5. 18x-2y=14 y=9x+7 6. 24x-21y=9 8x=… read more

subsitution method x+y=1 y=x^2-19 2. xy=90 3x-y=-3 3.x+y=3 (x-3)^2+(y-4)^

subsitution method x+y=1 y=x^2-19 2. xy=90 3x-y=-3 3.x+y=3 (x-3)^2+(y-4)^2=10 4.addition method 2x^2+3y^2-30=0 5x^2-4y^2-29=0 write the augmented matrix system of linear equation 3x+y+2z=0 3x-6y-z=2 x… read more

y= -1/3x + 4 and y= 1/3x + 2 Solve the problem and tell

y= -1/3x + 4 and y= 1/3x + 2 Solve the problem and tell if it is a,b, or c a. one solution b. no solution c. infinitely many sloutions… read more

x-2y=2 and 3x+y=6 Solve the problem and tell if it is a,b,

x-2y=2 and 3x+y=6 Solve the problem and tell if it is a,b, or c a. one solution b. no solution c. infinitely many sloutions… read more

3x+y=3 and 2y=-6x+6 Solve the problem and tell if it is

3x+y=3 and 2y=-6x+6 Solve the problem and tell if it is a,b, or c a. one solution b. no solution c. infinitely many sloutions… read more

matrix question can you please help with this one http:/

matrix question can you please help with this one http://www.mediafire.com/i/?1889ph5ltnnzxo0… read more

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.

JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.

Web sites like justanswer.com/legal

...leave nothing to chance.

...leave nothing to chance.

Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.

Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.

I will tell you that...the things you have to go through to be an Expert are quite rigorous.

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

Los Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

Hesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

Kernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

Woodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

Elkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

Dallas, TX

< Previous | Next >

rajeevanpillai

Master's Degree

358 satisfied customers

B.Sc in Mathematics and M.Sc, M Phil in Statistics

Mr. Gregory White

Master's Degree

167 satisfied customers

M.A., M.S. Education / Educational Administration

mhasan420

Master's Degree

37 satisfied customers

BA Maths, Oxford

JACUSTOMER-yrynbdjl-

Master's Degree

13 satisfied customers

I have taught college Mathematics for the past 10 years.

Dr. Arthur Rubin

Doctoral Degree

12 satisfied customers

Ph.D. in Mathematics, 1978, from the California Institute of Technology, over 20 published papers

Sandhya_sharma

Master's Degree

1,191 satisfied customers

I hold M.Sc and M.Phil degrees in math and have several years of teaching experience.

Kofi

PhD in Statistics

806 satisfied customers

Masters in Mathematics and Statistics

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.