Use a calculator to find the acute angle between the planes to the nearest thousandth of a radian.2x - 8y + 9z = -5 and -6x - 9y + 3z = 4
A. 1.549 rad
B. 0.883 rad
C. 0.627 rad
D. 0.688 rad
Answer: B
Mathematics
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Determine whether the number is divisible by 2, 3, 4, 5, 6, 8, 9, and/or 10.26,660
A. 2, 5 B. 4, 5, 10 C. 2, 4, 5, 10 D. 4, 5
Mathematics
Perform the indicated operation. Write your result in a + bi form.
A. 
- 
i
B. 
+ 
i
C. 
+ 
i
D. 
- 
i
Mathematics
Use a number line to find the sum.7 + (-5)
A. -12 B. 2 C. 3 D. -2
Mathematics
Provide an appropriate response.Determine whether each statement below is true or false. If either statement is false, provide a counterexample.- If two vectors are perpendicular, then their dot product must be zero.- If two vectors are orthogonal, then they must also be perpendicular.
What will be an ideal response?
Mathematics