Find the indicated vector.Let u = 
. Find 7u.
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Two points on L1 and two points on L2 are given. Determine whether L1 is parallel to L2, L1 is perpendicular to L2, or neither.L1: (3, -3), (8, -5); L2: (1, -3), (11, -7)
A. parallel B. perpendicular C. neither
Mathematics
Determine whether the following is an expression or an equation.7n3 = -8n
A. Equation B. Expression
Mathematics
Write the vector v in terms of i and j whose magnitude 
and direction angle ? are given.
= 10, ? = 90°
A. v = 10j
B. v = 10i
C. v = 10i + 10j
D. v = 10
Mathematics
Find the standard form of the equation of the ellipse satisfying the given conditions.Endpoints of major axis: 
and 
; endpoints of minor axis: 
and 
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Mathematics