Find the angle between v and w. Round your answer to one decimal place, if necessary.v = 2i - 7j,
w = 8i - 9j
A. 35.7°
B. 2.9°
C. 12.9°
D. 25.7°
Answer: D
Mathematics
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Find the absolute value.
A. 
B. 0
C. ±
D. - 
Mathematics
Find the term indicated in the expansion.(x - 3y)8; 7th term
A. 20,412x6y2 B. -6804x6y2 C. 20,412x2y6 D. -6804x2y7
Mathematics
Determine whether the given number is a solution of the equation. 
+ x = 3; x = 
A. No B. Yes
Mathematics
Determine if the sequence is geometric. If the sequence is geometric, find the common ratio.-4, -12, -36, -108, -324, . . .
A. no
B. yes, 
C. yes, 3
D. yes, -3
Mathematics