Answer:
2/9 times
Step-by-step explanation:
This is because 2/5 divided by 9/10 = 10/45 which if we simplify it we get 2/9 so that's why 2/9 is the right answer.
Answer:
2774
Step-by-step explanation:
start by multiplying 2 by 7, the answer is 14 put the 1 above the 8 in 1387 then put the 4 under the equation, similar to addition. repeat but next time when you multiply 2 by 8 add the 1 (from the previous multiplication) to the answer under and put the 1 from 17 on top of the 3. you get it?
Answer:
b = 6 or b = -6 (non-zero vectors)
b = 0 (zero vector)
Step-by-step explanation:
Two vectors 
and 
are orthogonal if their dot product is equal to 0, or in other words
In your case,
Hence, if vectors a and b are orthogonal, then
Note, then if b = 0, then 
and zero-vector is orthogonal to any other vectors.
Thus, b = 6 or b = -6.
