Simplify.
+ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find v ? u.v = 
and u = 
A. 
i - 
j
B. 0
C. 
i
D. 
Mathematics
Solve the quadratic equation by completing the square.x2 + 10x - 24 = 0
A. 12, 2 B. 12, -2 C. -12, 2 D. -12, 1
Mathematics
A number is given in decimal notation. Write the number in scientific notation.A computer compiles a program in 0.000909 seconds.
A. 9.09 × 10-4 B. 9.09 × 10-6 C. 9.09 × 103 D. 9.09 × 10-5
Mathematics
Evaluate the expression.(-2)-4
A. 
B. 16
C. - 
D. -16
Mathematics