Use a calculator to find the acute angle between the planes to the nearest thousandth of a radian.5x + 2y + 4z = -10 and 6x + 5y + 9z = 9
A. 1.256 rad
B. 0.315 rad
C. 1.433 rad
D. 1.370 rad
Answer: B
Mathematics
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Find the vector projv u.v = 3i - j + 3k, u = 2i + 10j + 11k
A. 
i - 
j + 
k
B. 
i + 
j + 
k
C. 
i - 
j + 
k
D. 
i + 
j + 
k
Mathematics
Perform the matrix operation.
- 
=
A. 
B. 
C. 
D. Not defined
Mathematics
Graph the function.Use the graph of log5x to obtain the graph of f(x) = 2log5x.
A. 
B. 
C. 
D. 
Mathematics
Draw a vector representing the following velocity.
?
70 cm/sec 
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics