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Post New Question
All Questions
+0
230840 Questions
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495
1
Solve the system of equations
Solve the system of equations
{ x+y=0 8x-7y=75
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Guest
Aug 26, 2016
0
550
1
Find A - B
Find A - B
A = [ 3 7 8 ] B = [ 2 2 6 ]
7
read more ..
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Guest
Aug 26, 2016
0
516
1
Find A + B
Find A + B
A = [ 5 5 7 ] B = 4 9 7
3 8 6
read more ..
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Guest
Aug 26, 2016
0
459
1
Find values of x and y, if any, that will make the matrices equal.
Find values of x and y, if any, that will make the matrices equal.
[ x y ] = [ 3 5 ]
1 9
read more ..
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Guest
Aug 26, 2016
0
521
0
Solve the system by Gauss - Jordan elimination.
Solve the system by Gauss - Jordan elimination.
{ 1/3 x + 3/4 y - 2/3 z = -8 x + 1/2 y + 1/3 z = 18 1/6 x = 1/8 y - z = -24
read more ..
Guest
Aug 26, 2016
0
673
1
How do you simplify -3x^3+5x+2/x^2-1
How do you simplify -3x^3+5x+2/x^2-1
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Guest
Aug 26, 2016
0
1093
3
+3693
help please with these 2 questions
and
read more ..
Melody
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BrittanyJ
Aug 26, 2016
0
387
0
What is the LCD in this equation??
What is the LCD in this equation??
2 / (x+1)(x-1)= 4x^2+6x-6 / (x-1)(x+)(x+1) - 1 / (x+1)
read more ..
Guest
Aug 26, 2016
+1
1002
4
+9575
Celebrations!!!
It's my birthday today!! :D
Melody
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MaxWong
Aug 26, 2016
0
1204
1
Find the uncoded 1×3 row matrices for the message "TWO IF BY LAND"; then encode the message using the encoding matrix [ 0 5
Find the uncoded 1×3 row matrices for the message "TWO IF BY LAND"; then encode the message using the encoding matrix [ 0 5 -5 ]
-5 -5
read more ..
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Guest
Aug 26, 2016
0
2522
1
Use a determinant to determine whether the points (9, −7), (7, −9) and (12, −5) are collinear.
Use a determinant to determine whether the points (9, −7), (7, −9) and (12, −5) are collinear.
Show all work.
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Guest
Aug 26, 2016
0
415
0
Find all (a) minors and (b) cofactors of the matrix [ -3 2 -8 ]
Find all (a) minors and (b) cofactors of the matrix [ -3 2 -8 ]
read more ..
Guest
Aug 26, 2016
0
612
0
Pascal's triangle
In class we saw that the sum of the entries of row of Pascal's Triangle is . In this problem we investigate the sums of the squares of the entries of row of Pascal's Triangle.
(a) Compute the sums of the squares
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Guest
Aug 26, 2016
0
485
1
solve the system by Gauss-Jordan elimination
solve the system by Gauss-Jordan elimination
{ x=y=2z=-8 x+y+z=-1 x+z=-5
read more ..
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Guest
Aug 26, 2016
0
454
1
whats the answer
[(1+5)⋅2−5]⋅2
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Guest
Aug 26, 2016
0
411
1
Solve the system of equations
Solve the system of equations
{ x+y=0 8x-7y=75
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Guest
Aug 26, 2016
0
624
1
Use determinants to find the area of the triangle with vertices at the given points.
Use determinants to find the area of the triangle with vertices at the given points.
P(0, 0), Q(20, 0), R(20, 6)
a. A=20
read more ..
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Guest
Aug 26, 2016
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