Determine whether the vectors v and w are orthogonal.v = 3i - 4j, w =-8i - 6j
A. Orthogonal
B. Not orthogonal
Answer: A
Mathematics
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Multiply and simplify. Assume that all variables represent positive real numbers.
(
+ 
)
A. 20
B. 10 + 5
C. 10 + 25
D. 100 + 5
Mathematics
Find the domain of the function.f(x) = log (x - 7)
A. (-7, ?) B. (0, ?) C. (7, ?) D. (1, ?)
Mathematics
Frank's algebra grade is based on the average of four exams, which will count equally. His grades are 85, 70, 70 and 85. Find his average. ?
A. 72.5 B. 77.5 C. 82.5 D. 92.5 E. 87.5
Mathematics
Simplify the exponential expression.
A. 
B. 
C. 
D. 
Mathematics