Questions on Algebra: Linear Algebra (NOT Linear Equations) answered by real tutors!

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Question 964573: If {vector u, vector v, vector w} is linearly independent then u, v, and w are not in R^2 (2 space). True or false? and why? Thanks for your help!

Click here to see answer by Fombitz(32388)

Question 964431: Solve equation in real number system. List real solution(s) x=. must show all work.
x^4+6x^3+4x^2-3x+10=0
im seriously confused.
Click here to see answer by Fombitz(32388)

Question 964445: Information is given about a polynomial f(x) whose coefficients are real numbers. Find the remaining zeros of f.
Degree;3 Zeros; -2,-5,-i
What are the remaining zeros of f?
Click here to see answer by Fombitz(32388)

Question 964448: Form a polynomial f(x) with real coefficients having the given degree and zeros
degree; 4; Zeros: -2, -2i, 3 multiplicity 2
find the polynomial in form
f(x)=a( )
Click here to see answer by Fombitz(32388)

Question 964657: What are the zeros of the function? (x-3)(x+3)(x-4) Graph the function.
Click here to see answer by MathLover1(20849)

Question 964562: If vector u and vector v are in R^m, then -u is in span {vector u, vector v}. True or false? and why? Thanks for your help!

Click here to see answer by Fombitz(32388)

Question 964568: Is the transformation T defined by T(x1, x2, x3)=(2x1-x2, x3+4) linear or non-linear? Explanation? Thanks for your help!
Click here to see answer by Fombitz(32388)

Question 965404: Write an equation in slope-intercept form of a linear function f whose graph satisfies the given conditions.
The graph of f passes through (-6, 4) and is perpendicular to the line that has an x-intercept of 2 and a y�intercept of -4.

Click here to see answer by josgarithmetic(39614)

Question 966513: In the given functions f and g; f(x)=square root of x; g(x)=4x-3 find the following;
(f*g)(x) and (f/g)(x).
List the domain of each result.
Please help me. I have no idea where to start with this. Thank You.
Click here to see answer by josgarithmetic(39614)

Question 966525: In the given functions f and g; f(x)=square root of x; g(x)=4x-3 find the following;
(f*g)(x) and (f/g)(x).
List the domain of each result.
Please help.
Click here to see answer by josgarithmetic(39614)

Question 966505: The graphs below have the same shape. Complete the equation of the blue graph. Enter exponents using the caret (^); for example, enter x2 as x^2. Do not include "G(x) =" in your answer.
Click here to see answer by Fombitz(32388)

Question 967576: 𝑚=(𝑞2 � 𝑞1)(𝑝2 � 𝑝1)
Click here to see answer by Alan3354(69443)

Question 969810: (x�6)(x�9) =
Click here to see answer by josgarithmetic(39614)

Question 970398: I have to do the following equation as an elimination and I'm a little confused. I did it on a graph and also as a substitution but got a little confused with this method. Here's the equation.
y=x-4
y=-x+8
Can someone please show me the way to do the elimination way with steps so I can see where I went wrong. Thanks in advance!
Click here to see answer by jim_thompson5910(35256)

Question 970910: Which linear function represents the line given by the point-slope equation y + 7 = �2/3(x + 6)?
A. f(x)= -2/3x-11
B. f(x)= -2/3x -1
C. f(x)= -2/3x +3
D. f(x) = -2/3 +13
Click here to see answer by stanbon(75887)

Question 971114: identify charateristics of the graph of y= -x^2+3x-4
Click here to see answer by Edwin McCravy(20054)

Question 971146: the speed of a moving walkway is about 3.5 seconds. Waling on the moving walkway it takes juan a total of 20 seconds to travel 35 feet with the movement of the walkway and then back again against the movement of the walkway. What is juans normal walking speed?
Click here to see answer by josgarithmetic(39614)

Question 971236: Hi, i cant seem to find fiftieth (50th) derivative of f(x)=37x^42+log(x) help is appreciated, thanks!
Click here to see answer by Alan3354(69443)

Question 971700: solve for x and y in 5.46 = 0.8x + 0.07y
Click here to see answer by MathLover1(20849)

Question 971954: if x/y + x =83 .then find sqrt((x+xy-2y)/y)
Click here to see answer by josgarithmetic(39614)

Question 972173: Y=1/2x+4
Click here to see answer by Alan3354(69443)

Question 972622: Factor the trinomial: x2 + 7x + 6
Click here to see answer by rfer(16322)

Question 972719: solve -10(z-y)
Click here to see answer by Alan3354(69443)

Question 973410: Hi, im finding difficulty trying to answer these two questions, help would be much appreciated, thank you very much.
(a)Find a and b if a,1,a+b forms a geometric progression and b,1/2,a-b forms an arithmetic progression
(b)Show that if the first, second and fourth terms of an arithmetic progression form a geometric sequence, then either the sequence is a constant sequence, or the terms are the positive integer multiples of the first term.
Click here to see answer by josgarithmetic(39614)

Question 974827: How many terms are there in the polynomial 18x3 � 14x2 � 18x3 + 22x4 � 12?

3
Click here to see answer by solver91311(24713)

Question 975034: In a regular polygon with n sides each exterior angle is 180-360/n degrees. How many sides does a polygon have if each interior angle is 156 degrees?
Click here to see answer by Alan3354(69443)

Question 975084: Hi!
Ive learned how to form a matrix and the problem is I have no idea what to do next when it comes to row reduction and getting to the final answer for example this question:
x+2y=12
x-3y=2 I know how to form the matrix but whats next?
Click here to see answer by solver91311(24713)

Question 975032: A Bus is travelling with 52 passengers. When it arrives at a stop y passengers get off and 4 get on. At the next stop one third of the passengers get off and 3 get on. There are now 25 passengers. Find y. Please help!! thanks
Click here to see answer by Boreal(15235)

Question 975391: Solve for the ff systems:
3x + 2y + z = 2
4x + 2y + 2z = 8
x - y + z = 4
Click here to see answer by Alan3354(69443)

Question 975400: solve the system:
x + 2y - 3z = -4
2x + y - 3z = 4
Click here to see answer by Fombitz(32388)

Question 976093: write the equation in slope intercept form of the line that has a slope of 2 and contains the points (1,1)

Click here to see answer by josgarithmetic(39614)

Question 976843: Solve the linear programming problem:
Maximize: z=5x+5y
Subject to:
5x+8y>(or equal to)95
19x-10y>(or equal to)159
x+y<(or equal to)45
x,y>(or equal to)0
Click here to see answer by Fombitz(32388)

Question 977008: The top floor is a rectangle and has a perimeter of 520 ft. The width of the top floor measures 20ft more than one half its length. What are the dimensions of the top floor?
Click here to see answer by Cromlix(4381)

Question 977225: How to solve
x + 7 < 12
Thank you!
Click here to see answer by Alan3354(69443)

Question 977778: the tens digit of a two digit number exceeds the units digit by 4. the sum of the digits is 10. find the number.
Click here to see answer by Alan3354(69443)

Question 977660: If I have the two vectors u = <0,5,3> and v = <0,-2,-5>, how can I find the projection of u orthogonal to v? I understand regular projections, but I'm not sure how to work out a perpendicular/orthogonal one! Thank you so much for your help and time.
Click here to see answer by Edwin McCravy(20054)

Question 977816: The functions f(x) = �(x + 4)2 + 2 and g(x) = (x − 2)2 − 2 have been rewritten using the completing-the-square method. Is the vertex for each function a minimum or a maximum? Explain your reasoning for each function.
Click here to see answer by Gogonati(855)

Question 977930: If x = 1 is a zero of the polynomial function f(x) = 3x3 − 8x2 + 3x + 2, which of the following is another zero of f(x)?
Click here to see answer by Boreal(15235)

Question 977930: If x = 1 is a zero of the polynomial function f(x) = 3x3 − 8x2 + 3x + 2, which of the following is another zero of f(x)?
Click here to see answer by richwmiller(17219)

Question 977930: If x = 1 is a zero of the polynomial function f(x) = 3x3 − 8x2 + 3x + 2, which of the following is another zero of f(x)?
Click here to see answer by Cromlix(4381)

Question 978024: Express your answer as an ordered pair in the format (a,b) (2x+7y=4)+(-4x-3y=14)

Click here to see answer by josgarithmetic(39614)

Question 978098: how do I get this answers of accounting of interest. ( 964,800 x .07% x 5/12% = 28140 ).how do they come up with this answers.

Click here to see answer by Boreal(15235)

Question 978534: What is the discontinuity of the function f(x) = the quantity of x squared minus 3 x minus 28, all over x plus 4?
Click here to see answer by stanbon(75887)

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