Solve the inequality and write the solution set in interval notation.1 - ex ? 0
A. [0, ?)
B. (-?, 0)
C. (-?, 0]
D. (0, ?)
Answer: A
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Find all specified roots.Cube roots of 1.
A. 1, 
+ 
i, - 
+ 
i
B. -1, 1
C. 1, 
- 
i, - 
- 
i
D. 1, - 
+ 
i, - 
- 
i
Find an equation of a parabola satisfying the given conditions.Focus at (0, -10), directrix y = 10
A. x2 = -10y B. y2 = -40x C. y = -40x2 D. x2 = -40y
Solve the problem.The algebraic expression 0.45x - 62 describes profit for a certain vendor when the vendor sells 
Evaluate the algebraic expression when 
to find the profit that the vendor makes from selling 
A. -$57.50 B. $298 C. $738 D. $360
Solve the problem.You inherit $28,000 from a very wealthy grandparent, with the stipulation that for the first year, the money must be invested in two stocks paying 4% and 10% annual interest, respectively. How much should be invested at each rate if the total interest earned for the year is to be $1600?
A. $8000 invested at 4%; $20,000 invested at 10% B. $10,000 invested at 4%; $18,000 invested at 10% C. $20,000 invested at 4%; $8000 invested at 10% D. $18,000 invested at 4%; $10,000 invested at 10%