“Extraneous solutions are not solutions at all. They arise from outside the problem, from the method of solution. They are extraneous because they are not solutions of the original problem. ... To tell if a "solution" is extraneous you need to go back to the original problem and check to see if it is actually a solution.”
Basically, they are an answer you get when you solve a problem, but they don’t actually make the equation true so you disregard it.
Answer:
9j
Step-by-step explanation:
vector AB means going to B from A.
= pos. final - pos. initial
= pos.B - pos.A
= (2i + 4j) - (2i - 5j)
= 2i + 4j - 2i + 5j
= 9j
Answer:
19
Step-by-step explanation:
You take 80% of 24. and do 24 x 80. Round to the nearest whole number.
Answer:
35 miles
Step-by-step explanation:
The segment addition theorem tells you ...
DE + EF = DF
125 + EF = 160
EF = 35 . . . . . . . subtract 125
The distance from E to F is about 35 miles.
Answer:
-9/20
(Decimal: -0.45)
Step-by-step explanation: 1/2 -1/4
-2/5
= 1/-5 -1/4
=-1/5- 1/4
= -1/5 +-1/4
= -9/20
