Use the definition of equality of complex numbers to find the real numbers x and y such that the equation is true.x - 5i = 6 + yi
A. x = -6, y = 11
B. x = -6, y = -1
C. x = 6, y = -5
D. x = 6, y = 5
Answer: C
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 4 for r(t) = (4t2 + 4t + 4)i - 3t3j + (8 - t2)k
A. v(4) = 36i + 144j + 8k B. v(4) = 20i - 48j - 4k C. v(4) = 36i - 144j - 8k D. v(4) = 28i - 144j - 8k
Mathematics
Perform the indicated operations, expressing the answer in simplest form with rationalized denominators.
A. 
(
+ 1)
B. 
(
+ 1)
C. 
(
- 1)
D. 
(
+ 1)
Mathematics
Rewrite the series using the new index j as indicated.
= 
A. 
B. 
C. 
D. 
Mathematics
Write the number using digits.ten million, three hundred fifty-four thousand, two hundred three
A. 1,354,230 B. 10,354,203 C. 135,423 D. 1,354,203
Mathematics