Find the dot product v ? w.v = 3i + 2j + k and w = 6i + 4j + 2k
A. 12
B. 28
C. -28
D. 83
Answer: B
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The following table shows the population N of an ant colony t months after it is established. Use logistic regression to find a logistic model for the ant population. t 5 10 15 20 25 N 233 664 988 1,721 1,933?
A. 
B. 
C. 
D. 
Solve.The gravitational attraction A between two masses varies inversely as the square of the distance between them. The force of attraction is 4 lb when the masses are 3 ft apart, what is the attraction when the masses are 6 ft apart?
A. 4 lb B. 1 lb C. 3 lb D. 2 lb
Factor using the ac-method.48x2 + 28xy + 4y2
A. prime B. (12x + 4y)(4x + y) C. 4(3x - y)(4x - y) D. 4(3x + y)(4x + y)
Write a system of linear equations that models the situation. Do not solve.If 6 boxes of chocolate-covered almonds and 8 soft drinks cost 
and 2 boxes of chocolate-covered almonds and 7 soft drinks cost 
, find the price of a box of chocolate-covered almonds and the price of a soft drink.
A. 6x + 7y = 26 8x + 2y = 13 B. 8x + 6y = 26 2x + 7y = 13 C. 6x + 2y = 26 8x + 7y = 13 D. 6x + 8y = 26 2x + 7y = 13