Use properties of logarithms to condense the logarithmic expression. Write the expression as a single logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions.
(log5 (r - 2) - log5 r)
A. log5 
B. log5 
C. log5 
D. log5 
Answer: C
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 3 for r(t) = (9t - 3t4)i + (10 - t)j + (2t2 - 8t)k
A. a(3) = -81i + 4k B. a(3) = -324i + 4k C. a(3) = -324i - j + 4k D. a(3) = 324i + 4k
Mathematics
Use a finite sum to estimate the average value of the function on the given interval by partitioning the interval and evaluating the function at the midpoints of the subintervals.f(x) = 8
on [-3, 3] divided into 4 subintervals
A. 18
B. 
C. 48
D. 12
Mathematics
Write the fraction in simplest form.
A. 
B. 
C. 
D. 10x2y2
Mathematics
Find the perimeter of (distance around) the given figure by adding the lengths of the sides.
A. 13.12 feet B. 6.56 feet C. 5.2 feet D. 9.504 feet
Mathematics