Find the scalar tangential and normal components of acceleration of a particle with position vector r(t) = 3 sinti+3 costj+5tk.
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Mathematics
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Find the value of df-1/dx at x = f(a).f(x) = 4x + 6, a = 4
A. 
B. 
C. 4
D. 6
Mathematics
Solve.The weight W of an object on the Moon varies directly as the weight E on earth. A person who weighs 
on earth weighs 34.6 lb on the Moon. How much would a 101-lb person weigh on the Moon?
A. 505 lb B. 20.2 lb C. 0.2 lb D. 308.6 lb
Mathematics
Divide.
A. -7 B. -3 C. 3 D. 7
Mathematics
Solve the problem.Tuan struck out 14 times in 115 at-bats playing baseball. Fred tells his friend that he has struck out less than 8% of the time. Is he correct?
A. No B. Yes
Mathematics