Patterns of zeros can be found in products when multiplying by multiples of 10. Multiplying and dividing decimals by 10 also results in patterns in decimal placement. Based on these patterns, which statement correctly compares the zeros found in the following products? a. 400 x 10 b. 0.004 x 1,000 c. 104 d. 40,000 ÷ 103 sorry i'm kind of dumb lol-

Any vector that is a multiple of (3, 1) will be orthogonal. These include
.. A (-6, -2)
.. D (3, 1)


The dot-product of these with (-1, 3) is zero:
(-6*-1 +-2*3) = 6 -6 = 0
(3*-1 +1*3) = -3 +3 = 0

You can make a vector orthogonal to a 2-D vector by swapping the coordinates and negating one of them. When you swap the elements of (-1, 3) you get (3, -1). It is usually convenient to negate the one that is already negative, so that would give you (3, 1) as the orthogonal vector.