Find the angle between v and w. Round your answer to one decimal place, if necessary.v = -5i + 7j,
w = -6i - 4j
A. 88.2°
B. 20.7°
C. 110.8°
D. 90.9°
Answer: A
Mathematics
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Use a CAS integration utility to evaluate the triple integral of the given function over the specified solid region.
over the tetrahedron bounded by the coordinate planes and the plane 
A. 
B. 939
C. 
D. 
Mathematics
Write the numeral as a Roman numeral.30,215
A. 
CCXV
B. 
CCXVII
C. 
CCXV
D. 
CCXV
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Find the payment necessary to amortize the loan. Round to the nearest cent.$50,000, 9% compounded annually,30 annual payments
A. $4902.79 B. $4834.28 C. $4866.82 D. $4184.60
Mathematics
Multiply.(2 + 2i)(4 - 5i)
A. -2 + 18i B. 18 + 2i C. -10i2 - 2i + 8 D. 18 - 2i
Mathematics