<span>get their dot product, if the dot product is 0, then they're orthogonal (perpendicular).
also keep in mind that, if two vectors bear the same slope, namely <a,b> and <c,d> and the simplified slope b/a is the same value as d/c, then they're parallel vectors.</span>
$63. 10% of 70 is 7, so you would subtract that from the total cost and you would get $63.
Answer:
ANSWER: 
Step-by-step explanation:
Answer:
80-24=56
28 multiplied by 2=56
Step-by-step explanation:
Answer:
Step-by-step explanation:
x+4≥10 and x-6>-15
x≥10-4 and x>-15+6
x≥ 6 and x>-9
combining the two
x>-9