Use the given vectors to find the specified scalar.u = -4i + 9j, v = -9i + 8j; Find (4u) ? v.
A. 24
B. 432
C. 16
D. -452
Answer: B
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Perform the indicated operation.(
- 6)(
+ 3)
A. -2
- 18
B. 
+ 3
- 6
- 18
C. 
- 3
- 18
D. 
- 18
Write the complex number in rectangular form using exact values if possible. Otherwise, round to one decimal place.-7
A. - 
+ 
i
B. - 
+ 
i
C. 
+ 
i
D. 
+ 
i
Perform the indicated operations. Express the answer as a single polynomial in standard form.-5x(-10x - 12)
A. 110x2 B. 50x2 - 12x C. -10x2 + 60x D. 50x2 + 60x
Use Bayes' rule to find the indicated probability.Two shipments of components were received by a factory and stored in two separate bins. Shipment I has 2% of its contents defective, while shipment II has 5% of its contents defective. If it is equally likely an employee will go to either bin and select a component randomly, what is the probability that a defective component came from shipment II?
A. 0.714 B. 0.222 C. 0.5 D. 0.2