Katya S. answered 07/12/21
Tutor
4.9
(116)
Math. Pre-/ Algebra, Trigs, Pre-/ Calculus, Geometry. IT & Russian.
v = 8i+4j is <8,4>
p = 9i−4j is <9,-4>
The sum is <8+9,4-4> is <17,0> lies on the "x" axis, so |v + p| = 17
The sum |v| + |p| is √(82 + 42) + √(92 + -42) = 4√5 + √97