Which of the vectors a = (1,2), b = (0,1), c = (−2,−4), u = (−2,1) , v = (2,4), w = (−6,3) are:
Orthogonal?
In the same direction?
In opposite directions?

rick has $1400 and sally has $1500

step-by-step explanation:

to find amount of money rick has after 10 years :

principal = $1000 , time = 10 years , rate = 4% annually

to find amount of money sally has after 10 years :

her friend gives to pay her $50 per year, therefore money she has after 10 years = 50 × 10 = $500

also, sally gets $1000 after 10 years,

therefore, total amount of money sally has after 10 years = 500 + 1000 = $1500

so, after 10 years : rick has $1400 and sally has $1500

answer: answer is b.

[m < b = 120º]

step-by-step explanation:

all of them

step-by-step explanation:

zero eats the zero