Let A = {1, 3, 5, 7}; B = {5, 6, 7, 8}; C = {5, 8}; 
and 
Determine whether the given statement is true or false.U ? A
A. True
B. False
Answer: B
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Provide an appropriate response.The following equations each describe the motion of a particle. For which path is the particle's velocity vector always orthogonal to its acceleration vector?(1) r(t) = t4i + t4j(2) r(t) = cos (7t)i + sin (2t)j(3) r(t) = ti + t3j(4) r(t) = cos (-4t)i + sin (-4t)j
A. Path (2) and Path (4) B. Path (4) C. Path (3) D. Path (1)
Use percents, percent equations, and/or percent proportions to solve the application.A company has 25 franchises in China. This number is expected to increase to 36 over the next three years. What is this percent increase?
A. 44% B. 30.6% C. 56% D. 11%
Solve.Ming got a 6% raise in her salary from last year. This year she is earning $50,880. How much did she make last year?
A. $305,280 B. $8480 C. $48,000 D. $2880
Solve the problem.You have 120 feet of fencing to enclose a rectangular region. What is the maximum area?
A. 14,400 square feet B. 3600 square feet C. 896 square feet D. 900 square feet