Find the magnitude and direction angle (to the nearest tenth) for each vector. Give the measure of the direction angle as an angle in [0,360°].
A. 18; 180°
B. 18; 270°
C. 18; 90°
D. 324; 270°
Answer: B
Mathematics
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Determine whether or not the function is one-to-one.f(x) = 4x2 + x
A. No B. Yes
Mathematics
Solve.-0.03x + 0.11(x + 3200) = 384
A. {4000} B. {40,000} C. {40} D. {400}
Mathematics
Use geometry to compute the given integral.
?
?
A. 
B. 
C. 
D. 
E. none of these
Mathematics
A person is selected from a group of students. The probability a student is taking both English and history is 0.6. The probability a student is taking history, given he is taking English is 0.8. Find the probability the student is taking English.
What will be an ideal response?
Mathematics