Solve the problem.What is the additive inverse of - 
?
A. 
B. 11
C. 
D. - 
Answer: A
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Use Descartes's Rule of Signs to determine the possible number of positive and negative real zeros for the given function.f(x) = 3x7 - 5x4 + x + 10
A. 2 or 0 positive zeros, 2 or 0 negative zeros B. 3 or 1 positive zeros, 3 or 1 negative zeros C. 2 or 0 positive zeros, 1 negative zero D. 2 or 0 positive zeros, 1 or 0 negative zeros
Simplify by taking the roots of the numerator and the denominator. Assume all variables represent positive numbers.
A. x
B. 5x
C. 5x
D. 5x
Simplify the expression. Assume that all variables are positive when they appear.
- 
A. 2 - 3
B. 3
- 2
C. 5
D. 2
- 3
Solve the problem. Express the answer in scientific notation to two decimals unless requested otherwise.A computer can do one calculation in 1.4 × 10-7 seconds. How long would it take the computer to do a trillion (1012) calculations?
A. 1.4 × 106 sec B. 1.4 × 1012 sec C. 1.4 × 10-7 sec D. 1.4 × 105 sec