Find the indicated cross product.v = 5i + 4j, w = 2i - 5kFind v × w.
A. -20i + 25j + 8k
B. -8i + 20j - 25k
C. -20i + 25j - 8k
D. 10j - 20k
Answer: C
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Write the number in scientific notation.0.000411
A. 4.11 × 10-3 B. 4.11 × 104 C. 4.11 × 10-5 D. 4.11 × 10-4
Solve the problem.The sum of the digits of a 3-digit number is 18. The units digit is one less than the tens digit and the tens digit is one less than the hundreds. What is the number?
A. 876 B. 765 C. 865 D. None of these
Find the center and radius and draw the graph.(x + 5)2 + (y - 5)2 = 4
A. 
center (-5, 5); radius 2
B. 
center (5, 5); radius 2
C. 
center (5, -5); radius 2
D. 
center (-5, -5); radius 2
Solve the problem.Find the equation of a circle with center at (-6, 2), passing through the point 
Write it in center-radius form.
A. (x + 6 )2 + (y - 2)2 = 25 B. (x + 6 )2 + (y - 2 )2 = 5 C. (x - 6 )2 + (y + 2 )2 = 25 D. (x - 6 )2 + (y + 2 )2 = 5