Answer:
625/17
Step-by-step explanation:
-5 times -5 is 25 because if you times a negative to a negative you get a positive, so do that to both sides and 25 times 25 is 625....... you may have to simplify, hope this helps :)
Answer:
Step-by-step explanation:
we know that
The volume of a cube is equal to
where
s is the side length of the cube
we have
substitute in the formula
Remember the power rule
----> multiply the exponents
so
Answer: 103/40, or 2 23/40 or, 2.575
Step-by-step explanation:
Answer:
W is not a subspace.
Step-by-step explanation:
Notice that (-1,2,2) and (-1,5,3) are both elements of W. Because its x coordinate, x = -1, satisfy the condition |x| = 1.
but (-1,2,2) + (-1,5,3) = (-2,7,5) do not belongs to W. Because its first coordinate, x =-2, do not satisfy |x| = 1.
