Find the length and direction (when defined) of u × v.u = 2i + 8j , v = i - j
A. 10; -k
B. 10; -10k
C. 6; 6k
D. 6; -6k
Answer: A
Mathematics
You might also like to view...
Change the percent to a decimal.0.5%
A. 0.006 B. 0.5 C. 0.05 D. 0.005
Mathematics
Solve using the quadratic formula. Round any answers to two decimal places.
x2 - 2
x = 3
A. {-0.82, 14.67} B. {0.21, -14.67} C. {0.82, -14.67} D. {-0.21, 14.67}
Mathematics
Sketch a graph of f.f(x) = (x + 6)2
A. 
B. 
C. 
D. 
Mathematics
Solve by completing the square.x2 + 4x = 7
A. -2 ± 
B. -1 ± 
C. -2 ± 2
D. 2 + 
Mathematics