you should put 19 in the tens box and the bottom one is correct
Answer:k=1,k=-2,k=
Step-by-step explanation:
Given two vectors
Distance between them is given by
squaring both side
k=1
angle between u and v is 90 i.e. orthogonal
=0
2+k=0
k=-2
angle between u & v is
=0
k=
Going from 107 to 98 is (minus 9)
going from 98 to 90 is (minus 8)
going from 90 to 83 is (minus 7)
going from 83 to 77 is (minus 6)
following this pattern, the number after 77
is 77 minus 5 = 72
therefore your answer is 72
67 thatcher and a few others in a
A=-3 and i think any value of 'a' makes those equation infinite solution because expression has same variable both side.