College Algebra Solutions for Your Success

What is the value of ${\displaystyle (A}$x${\displaystyle B{)}^2}$ + ${\displaystyle {(A\cdot B)}^2}$?

If $\stackrel{\to <!--\; \to \; -->}{A}\times <!--\; \times \; -->\stackrel{\to <!--\; \to \; -->}{B}=\stackrel{\to <!--\; \to \; -->}{C}$ which of the following statements is/are correct?
A)C is perpendicular to A;
B)C is perpendicular to B;
C)C is perpendicular to both A and B D;
C) is parallel to both A and B

Can you multiply a $3x2$ and $2x2$ matrix?

The equation of the graph, y=0.4x,represents a linear relationship between x and y. True or False

Determine unit vector which is perpendicular to both A=2i+j+k and B=i-j+2k?

How to find the unit vector having the same direction as vector ${\displaystyle a=8i-15j}$?

How to solve linear equations in three variables?

The permutations and combinations of $abcd$ taken $3$ at a time are respectively.

How to solve using gaussian elimination or gauss-jordan elimination, ${\displaystyle 2x-3y-2z=10}$, ${\displaystyle 3x-2y+2z=0}$, ${\displaystyle 4z-y+3z=-1}$?

How to find the unit vectors that are parallel to the tangent line to the curve y = 2sinx at the point (pi/6,1)?

How to find the component form and magnitude of the vector v given initial point (-1,5) and terminal point (15, 12)?

How to find a) u+v, b) u-v, c) 2u-3v given ${\displaystyle u=<2,3>,v=<4,0>}$?

How to find a unit vector parallel to another vector?

A unit vector parallel to vector V= (2,-3,6) is what?

Sarah can paddle a rowboat at 6 m/s in still water. She heads out across a 400 m river at an angle of 30 upstream. She reaches the other bank of the river 200 m downstream from the direct opposite point from where she started. Determine the river current?

How can I calculate the magnitude of vectors?

The sum of the digits of a two digit number is 7. If the digits are reversed, the new number decreased by 2, equals twice the original number. Find the number.

What is the determinant of a $1\times <!--\; \times \; -->1$ matrix?

What is meant by the determinant of the third-order?

Is it possible for the product of two non-zero vectors to be zero?