Perform the operations.
A. 490
B. 4,900
C. 49
D. 0.49
Answer: A
Mathematics
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Solve the equation for the indicated variable.S = 2?rh + 2?r2
for h
A. h = S - r
B. h = 
C. h = 
- 1
D. h = 2?(S - r)
Mathematics
Solve the rational equation. If there is no solution, state this as your answer.
+ 
= 
A. {8}
B. 
C. {-4}
D. {-8}
Mathematics
The position vector of a particle is r(t). Find the requested vector.The velocity at t = 
for r(t) = 4sec2(t)i - 10tan(t)j + 6t2k
A. v
= 16i - 20j + 3?k
B. v
= 16i + 20j - 3?k
C. v
= -20j - 3?k
D. v
= -20j + 3?k
Mathematics
Use the product rule, quotient rule, or power rule to expand the logarithmic expression. Wherever possible, evaluate logarithmic expressions.log4(16x)
A. 8 + log4x B. 2x C. 2 + log4x D. 2log4x
Mathematics