Express the vector x as a linear combination of the u's.u1 = 
, u2 = 
, x = 
A. x = 4u1 - 2u2
B. x = -4u1 - 2u2
C. x = 4u1 + 2u2
D. x = 2u1 + 4u2
Answer: C
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Solve the problem.A normal line to the paraboloid 
also passes through the point 
Find the point on the paraboloid that the normal line passes through.
A. (2, 5, 86) B. (2, 86, 5) C. (5, 38, 2) D. (5, 2, 38)
Find the product.
? 
A. 
B. 
C. 
D. 
Solve the problem.Use the average daily balance for the following credit card account to find the finance charge if interest is 1.69% per month on the average daily balance. Assume one month between billing dates. Previous balance $295.76. October 12Billing date October 20Payment$62.00 October 21Purchase$22.01 October 27Return$32.39 November 5Purchase$49.03
A. $4.95 B. $4.39 C. $4.54 D. $4.11
Factor the trinomial.s2 + 6s + 8
A. (s + 2)(s + 4) B. (s + 8)(s + 6) C. (s + 8)(s - 1) D. (s - 2)(s - 4)