Find all valid real roots for the equation.5x8 + 34x4 = 48
A. x = ±
B. x = ±
, x = 
C. no real roots
D. x = 
Answer: A
Mathematics
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Let U = {1, 2, 4, 5, a, b, c, d, e}. Find the complement of the set.T = U
A. T B. {U - T'} C. ? D. U
Mathematics
Complete.7000 mcg = 
mg
A. 7 B. 70 C. 0.7 D. 700
Mathematics
Write the series using summation notation.310 + 410 + 510 + 610
A. 
B. 
C. 
D. 
Mathematics
Solve the problem. Express the answer as a percentage.A coin is biased to show 39% heads and 61% tails. The coin is tossed twice. What is the probability that the coin turns up tails on both tosses?
A. 61% B. 37.21% C. 22% D. 39%
Mathematics