Tutors Answer Your Questions about Linear Algebra (FREE)
Question 867004: I have a Linear Algebra question.
If Q is the vector space where f(x)=f^2(x) and f(x)=1 is Q a real vector space?
Assuming it is a subspace of F(Negative Infinity to Infinity) we only need to check the 2 axioms addition and scalar multiplication
1. Addition f(x) + f(x) = 1 + 1 = 2
Here is my question: f(x) = 2 isn't within the space, does that mean we don't have a Real vector space?
Click here to see answer by jim_thompson5910(35256)  |
Question 869771: Ali rented a truck for one day. There was a base fee of , and there was an additional charge of cents for each mile driven. Ali had to pay when he returned the truck. For how many miles did he drive the truck?
Click here to see answer by mananth(16946)  |
Question 870839: Could you please help me to understand this q step by step?
find the x value of the 2x2 matrix that make the determinant zero?
( Linear Algebra Q)
x-1 -2
x-2 x-1
also i'm unable to understand how to sketch a digraph? of matrices
its so confusing
1)
0 1 1 0
0 0 1 1
0 0 0 1
1 0 0 0
2)
0 1 1 0
1 0 1 0
1 1 0 0
3)
0 1 0 1 0
1 0 1 0 0
0 1 0 1 0
1 0 0 0 0
1 1 1 1 0
please help me through simipifying the answers so that i'd understand
im using Linear algebra with application 5th edition by gareth williams
the text book doesnt show any other examples of how to sketch.
Click here to see answer by rothauserc(4718)  |
Question 871208: i'm unable to understand how to sketch a digraph? of matrices
its so confusing
1)
0 1 1 0
0 0 1 1
0 0 0 1
1 0 0 0
2)
0 1 1 0
1 0 1 0
0 0 0 1
1 1 0 0
3)
0 1 0 1 0
1 0 1 0 0
0 1 0 1 0
1 0 0 0 0
1 1 1 1 0
please help me through simipifying the answers so that i'd understand
im using Linear algebra with application 5th edition by gareth williams
the text book doesnt show any other examples of how to sketch.
Click here to see answer by Fombitz(32388)  |
Question 871208: i'm unable to understand how to sketch a digraph? of matrices
its so confusing
1)
0 1 1 0
0 0 1 1
0 0 0 1
1 0 0 0
2)
0 1 1 0
1 0 1 0
0 0 0 1
1 1 0 0
3)
0 1 0 1 0
1 0 1 0 0
0 1 0 1 0
1 0 0 0 0
1 1 1 1 0
please help me through simipifying the answers so that i'd understand
im using Linear algebra with application 5th edition by gareth williams
the text book doesnt show any other examples of how to sketch.
Click here to see answer by violettta222(1)  |
Question 872604: Here's another one! Please help!
suppose that the population of Country A is given by y=-6.95x + 903.74 million and the population of Country B is given by y= 2.45x + 743.94 million. Where X is the number of years since 1960. Find the year in which the population of the country's were equal. Explain the method you used to find your answer
Click here to see answer by mananth(16946) |
Question 867688: Roger buys and plants a tree sapling measured at 3 feet tall. After 1 year of growth, the tree is 4.5 feet tall. After 3 years of growth the tree is 7.5 feet tall. If the growth of the tree were place on a graph, what would be the slope value?
I am given options
A. initial planting height of 3 feet.
B. 4.5 feet after 1 year of growth.
C. Beginnings height of 0 feet.
D. 1.5 feet per year of growth. I think it is D, but I am not sure. I think it would look like y= mx+b, where b would represent Y. I would appreciate some guidance. doing word problems is a major weakness for me. Thank you for your help
Click here to see answer by richwmiller(17219)  |
Question 876799: I know how to do substitutions for equations that are quadratic in form, but what do you do if the exponents in the equation have different denominators and the same numerators like in this problem x^(3/2)-2x^3/4+1=0?
Click here to see answer by Fombitz(32388) |
Question 879496: Dear Math Tutor,
Simplify [(4x.1/2y^2)] / (2x^-1 y^2)
I simplified it to be: [16x^2. 1/4 y^2]/ (2/x . y^2}
so (16x^2)/1 x x/2 = 8x^3
1/4y^2 x 1/y^2 = 1/4y2
= 8x^3.1/4y^2
Is that correct?
With gratitude,
Nat
Click here to see answer by ewatrrr(24785)  |
Question 879559: Hello, I am having a really hard time understanding this question. Can someone please help me. Thank you in advance.
Solve the equation using the quadratic formula.
1. 3x^2+12x+2=0
I substituted all the values into the quadratic formula, but I got stuck when I got to -12 +/- sqr. root of 120/6. Please help me!!
Click here to see answer by lwsshak3(11628) |
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