Perform the operation and write the result in the standard form.(16 + 7i) - (5 + 2i)
A. -11 + 5i
B. -11 - 5i
C. 11 + 5i
D. 11 - 5i
Answer: C
You might also like to view...
Specify the domain of the function.f(x) = 7x2 + 9x - 7
A. All real numbers B. x < 0 C. x ? 0 D. x > 0
Solve the problem.How many 3-letter codes can be formed using the letters A, B, C, D, and E? No letter can be used more than once.
A. 20 B. 40 C. 10 D. 60
Factor completely. If the polynomial is prime, state this.2x2 - 3xy - 9y2
A. (2x - 3y)(x - 3y) B. (2xy + 3)(xy - 3) C. (2x + 3y)(x - 3y) D. (2x - 3y)(x + 3y)
Solve the problem.Some people treat acid reflux with the drug Pepcid. The number of milligrams N of Pepcid in an adult's bloodstream t hours after a 20 mg tablet is swallowed can be approximated by N = -0.09t(t - 12)3 . Approximately how long after a tablet is swallowed will there be 17 mg in the bloodstream? Use a graphing calculator and round to the nearest hundredth of an hour.
A. 0.08 hr, 9.3 hr B. 0.13 hr, 9.25 hr C. 0.19 hr, 9.35 hr D. 0.11 hr, 9.27 hr