Perform the operation and write the result in the standard form.(18 + 7i) - (7 + 4i)
A. 11 - 3i
B. -11 - 3i
C. -11 + 3i
D. 11 + 3i
Answer: D
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Perform the division.
A. z2 - 4z + 16 B. z2 + 8z + 16 C. z2 + 4z - 16 D. z2 + 4z + 16
Find the domain and range of the inverse of the given function.f(x) = 
A. Domain and range: (-?, ?) B. Domain: (-?, 5) ? (5, ?) ; range (-?, 0) ? (0, ?) C. Domain: (-?, ?); range (-?, 5) ? (5, ?) D. Domain: (-?, 0) ? (0, ?); range (-?, 5) ? (5, ?)
Perform the indicated operation.(4r - 4)(4r - 4)
A. 16r2 + 16r - 32 B. 4r2 - 32r - 33 C. 4r2 - 33r + 16 D. 16r2 - 32r + 16
Solve the problem. Round your answer to the nearest whole number.The capital value of an asset is defined as 
, where k is the annual rate of interest compounded continuously and R(t) gives the annual rate at which earnings are produced by the asset at time t. Find the capital value of an asset that produces $5000 yearly income at 8% compounded continuously.
A. $71,429 B. $65,000 C. $60,500 D. $62,500