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

Tutors Answer Your Questions about Linear Algebra (FREE)

Question 814671: solve algebraically for x: 32^2x+2=64^2x
Click here to see answer by TimothyLamb(4379)

Question 814702: Rewrite each question using only positive exponenets a-5b4c-2d
Click here to see answer by ewatrrr(24785)

Question 815129: 6(2 y + 3)+2(3 y + 4)
Click here to see answer by tommyt3rd(5050)

Question 815373: 4 � (-6)
-5 =

Click here to see answer by Alan3354(69443)

Question 815423: 20 men can finish 1/6 of a piece of work in 5 days.When should 5 men leave the work so that it may be finished in 35 days from begining?

Click here to see answer by TimothyLamb(4379)

Question 815840: Mabel paid $2.95 for a granola bar with dimes and quarters. She used 5 fewer quarters than dimes. How many dimes and quarters did she use to pay for the granola bar?
Click here to see answer by richwmiller(17219)

Question 815894: Can you please answer this question?
Find a and b so that the line ax+by=9 passes through the points (1,-2) and (4,1)
Click here to see answer by richwmiller(17219)

Question 816756: Please find x and y intercepts to y = 4x^2 - 24x + 40

Click here to see answer by ewatrrr(24785)

Question 817841: What is the equation of the line that passes through (4,7) and (8,2)?
Click here to see answer by ewatrrr(24785)

Question 819514: what is the standard form of y=9x+1/2
Click here to see answer by josgarithmetic(39616)

Question 819786: If i am given matrix B and the solution to AB, how would if find matrix A
Click here to see answer by TimothyLamb(4379)

Question 820362: X-5= -y
2y-10=-2x
Click here to see answer by stanbon(75887)

Question 820547: Complete the square to put in vertex form: y=3x^2-6x-7
Click here to see answer by stanbon(75887)

Question 820852: 3x^2-18x+24=0 Can you please help me answer this equation? It's factor to solve equation
Click here to see answer by ewatrrr(24785)

Question 820859: Please help me answer the equation:
Solve equation log(x+3)=1-logx
Click here to see answer by ewatrrr(24785)

Question 821135: The width of a box is 200 cm less than the length. THe height is 100 cm less than the length. The volume of the box is 20 m^3. Write a polynomial function to describe the volume. Find the dimensions of the box.
Click here to see answer by ankor@dixie-net.com(22740)

Question 821265: Solve each equation for x.
tx-u=3t
Click here to see answer by tommyt3rd(5050)

Question 822281: How to find Domain and Range of this function without using a graph:
4-2√x
Click here to see answer by LinnW(1048)

Question 822281: How to find Domain and Range of this function without using a graph:
4-2√x
Click here to see answer by Edwin McCravy(20054)

Question 822345: how to graph the following?
4[x]
[x]-1
[x-3]

Click here to see answer by Alan3354(69443)

Question 822615: What is the solution for y/2-4/2 = 10?
Click here to see answer by oscargut(2103)

Question 823123: Find the equation of the line, in standard form, perpendicular to y=7x-4 that passed through the point (-2,3)
Click here to see answer by TimothyLamb(4379)

Question 823094: 5x+2y+4z=-17
x-4y+3z=12
5x+5y+2z=29
Click here to see answer by TimothyLamb(4379)

Question 823171: 1. x^2+y^2=16 y=-x^2-4
2. x^2-y^2=61 x^2-y^2=11
The directions are solve the system of liner or non-linear equations but im not sure how
Click here to see answer by stanbon(75887)

Question 823168: How do I solve this equation:
- (5a + 2x /2a) + (5a - 4x/8a) -1

Click here to see answer by Alan3354(69443)

Question 823892:
2a - [4b - {4a - (3b - 2a + 2b)}]
NB: Vinculum on 2a + 2b
Click here to see answer by Edwin McCravy(20054)

Question 823732: Maximize p = 5x + 3y subject to
2x + 3y <= 12
3x + y >= 16
x + y >= 3
2x + y >= 6
Click here to see answer by KMST(5328)

Question 824328: Will you please solve this question 1 / i (3-2i)(1+i)?
Click here to see answer by Alan3354(69443)

Question 824364: solve for the values of x if x+10x <800

Click here to see answer by josgarithmetic(39616)

Question 824578: solve the following linear equations using matrix techniques:
3x1+5x2=1
x1+2x2=2
Click here to see answer by jsmallt9(3758)

Question 824847: How to to solve this
x /a + x/3a= 4-x
Solve for x
Click here to see answer by Alan3354(69443)

Question 825031: 2.5x + 3.7y = 13.365
8.2x - 1.5y = 7.02
Solve for x and y
I tried everything but cant seem to find the solution.
Click here to see answer by TimothyLamb(4379)

Question 825528: Im not sure if i picked the topic right but will someone please help me with this question?
y varies directly as x if y= 30 when x is 8, find the equation of variation
Click here to see answer by nerdybill(7384)

Question 825660: Is h(x) = 23 a linear function? Why or why not?
Click here to see answer by TimothyLamb(4379)

Question 825660: Is h(x) = 23 a linear function? Why or why not?
Click here to see answer by AnlytcPhil(1806)

Question 826057: How do you find the minimum and maximum values of each function over the feasible region

F(X)=3x+y
Click here to see answer by KMST(5328)

Question 812415: A = h(a + b) solve for a
Click here to see answer by tommyt3rd(5050)

Question 806158: Which of the points a. (0,1) b. (-1,2) c.(-3,2) d. (1,0) is a solution of 3x+4y<2?
Click here to see answer by tommyt3rd(5050)

Question 820790: 3x+y= 8
6x+2y+3=16
option
a) 3 & 1
b) infinite Soln
c) no SoIn
d) none
Click here to see answer by tommyt3rd(5050)

Question 806156: Which of the points a. (0,1) b. (-1,2) c.(-3,2) d. (1,0) is a solution of 3x+4y<2?
Click here to see answer by tommyt3rd(5050)

Question 806157: Which of the points a. (0,1) b. (-1,2) c.(-3,2) d. (1,0) is a solution of 3x+4y<2?
Click here to see answer by tommyt3rd(5050)

Question 826651: write an equation of a line that passes through the y-intercept -3 with a slope 2
Click here to see answer by MathLover1(20849)

Question 826856: Write an equation of a line with an x-intercept 4 and a slope -3.
Click here to see answer by math-vortex(648)

Question 827278: How do I find the x and y intercepts for this problem?
-6x-30y=30
I got x-intercept(-5,0)
y- intercept (o,-1)
Click here to see answer by TimothyLamb(4379)

Question 827277: How do I solve this problem?
sketch the graph of the equation?
-4x+32y=-28
Click here to see answer by Edwin McCravy(20054)

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