A. a and 5 have the same direction. ä has a magnitude of 8, and 7 has a magnitude of 5. What must be true about a and 6?
They are opposites and parallel.
C. They are equal, but not parallel
b. They are parallel, but not equal
d. They are opposites, but not parallel

3-12. write each answer with a reasonable number of figures. find the absolute uncertainty and percent relative uncertainty for each answer. (a) [12.41 (±0.09) + 4.16 (±0.01)] x 7.068 2 (±0.000 4) =? (b) [3.26 (±0.10) x 8.47 (±0.05)] - 0.18 (±0.06) =? (c) 6.843 (±0.008) x 104 + [2.09 (±0.04)- 1.63 (±0.01)] =?

Select the lengths in centimeters that would form a right triangle

If you could answer these your a life saver