Answer:
A and B
Step-by-step explanation:
Parallel lines are lines which have the same slope. Perpendicular lines have negative reciprocal slopes.
For the options:
A. Both equations have 7/5 as the slope. They are parallel.
B. The slopes are 1 and -1. These are perpendicular.
C. The slopes are 9/2 and are parallel.
D. The slopes are 7/3 and -3/7. They are perpendicular.
The solution is A and B.
Answer:
b
Step-by-step explanation:
b b b b b b b b bb b b b b bb b b bb b bb bb bb b bb b b b b b b b b bb b b b b bb b bb b b b b bb b b b b b b b bb bb
Answer:
Step-by-step explanation:
acid=16.5 % of 348
=0.165×348
≈57.4 ml
The answer is 31 add 14 and 7 then subtract 52 by the 21 thus giving 31
