Answer:
a) none
b) vertical through the middle
c) horizontal through the middle
d) none
Step-by-step explanation:
a) A repeated asymmetrical pattern rarely has a line of symmetry. (I can't think of a case where it does.)
__
b) This figure has left-right symmetry about its centerline. (In general, a light bulb will not, because the screw threads are asymmetrical.)
__
c) Each of the letters is symmetrical about its horizontal centerline, so the word is as well.
__
d) The letter S is symmetrical about its center point, but not about any horizontal or vertical line. This word is not symmetrical about any line.
__
Answer:
a. 5i + 13j
b. 8i
c. 10i + 6j
Step-by-step explanation:
a. 2i + 6j + 3i + 7j = 5i + 13j
b. 3i + 7j + 5i - 7j = 8i
c. 2i + 6j + 3i + 7j + 5i - 7j = 10i + 6j
The answer is 13 … just minus 17-4 and it will equal 13