Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.(x-7y7)-4z3
A. 
B. 
C. 
D. 
Answer: C
Mathematics
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Solve.The bar graph shows the expenditures of one city government in a recent year. 
How much more is spent on Health than on Fire?
A. $4.3 million B. $2.4 million C. $2.6 million D. $1.1 million
Mathematics
Solve.
= 
A. 7.45 B. 23.9 C. 26.55 D. 17.7
Mathematics
Write the partial fraction decomposition of the rational expression. 
A. 
+ 
- 
B. 
- 
- 
C. 
- 
+ 
D. 
+ 
+ 
Mathematics
The position vector of a particle is r(t). Find the requested vector.The velocity at t = 0 for r(t) = cos(2t)i + 2ln(t - 7)j - 
k
A. v(0) = -2i - 
j
B. v(0) = -
j
C. v(0) = 
j
D. v(0) = 2i - 
j
Mathematics