Consider the vectors a⃗ =4i⃗ +j⃗ −k⃗ ,b⃗ =i⃗ +j⃗ +5k⃗ ,c⃗ =i⃗ +4j⃗ −k⃗
d⃗ =−4i⃗ −j⃗ +k⃗ ,g⃗ =i⃗ −4j⃗ .
Which pairs (if any) of these vectors are

(a) Are perpendicular?

(Enter none or a pair or list of pairs, e. g., if a⃗ is perpendicular to b⃗ and c⃗ , enter (a, b),(a, c).)

(b) Are parallel?

(Enter none or a pair or list of pairs, e. g., if a⃗ is parallel to b⃗ and c⃗ , enter (a, b),(a, c).)

(c) Have an angles less than π/2 between them?

(Enter none or a pair or list of pairs, e. g., if a⃗ is at an angle less than pi/2 from b⃗ and c⃗ , enter (a, b),(a, c).)

(d) Have an angle of more than π/2 between them?

answer: the 4 kilogram bag

step-by-step explanation: this is because if you divide the number of kilograms into the total it will tell you how much each individual kilogram would be worth. 2 kilos is 7 and change 3 would be around 6 ish and the 4 kilo would be 4.6 and change and the 5 kilos would be like 4.88

answer

you start with $5 and save $10 a week until you have at least $45wer

step-by-step explanation:

answer:

step-by-step explanation:

here, the total dishes = 10

dishes having meat = 3 ( chicken, meatloaf and hamburger )

thus, the probability of having meat on the chosen dishes = number of dishes having meat / total dishes

=

therefore, the probability of not having meat = 1- the probability of having meat on the chosen dishes

=

=

=

⇒ option b is correct.