Forces F1 and F2 act at the same point. Find the resultant force F and its magnitude.F1 = 
i + 
j, F2 = - 
i + 
j
A. F = - 
i - 
j ; 
= 
B. F = 
i + 
j ; 
= 
C. F = - 
i + 
j ; 
= 
D. F = 
i + 
j ; 
= 
Answer: C
Mathematics
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Write the indicated term of the binomial expansion.(2x + 8)3; 3rd term
A. 768x B. 384x C. 96x2 D. 64
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Perform the operation. Write the answer as a fraction in lowest terms. 
+ 
A. 
B. 
C. 
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Use the RSTC Approach to solve the application.A local youth group has 250 raffle tickets to sell. After 5 hours of selling, 81 raffle tickets remained. What percent of the raffle tickets were sold? Round to the nearest percent.
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