A card is chosen from a deck of 52 cards. It is put back in the deck and a second card is chosen. What is the probability of an ace and a 2?
A. 
B. 
C. 
D. 
E. 
Answer: E
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Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ? L(x, y) at the given point over the given region R.
at 
; R: |x - 1| ? 0.1, |y - 1| ? 0.1, |z - 1| ? 0.1
A. |E| ? 0.36 B. |E| ? 0.28 C. |E| ? 0.336 D. |E| ? 0.3
Choose the equation that matches the graph.
A. 
- 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
+ 
= 1
Use the graph of a known basic function and a horizontal stretch or horizontal compression to sketch the function.h(x) = 
A. 
B. 
C. 
D. 
Use the simple interest formula.How can $42,000 be invested, part at 4% annual simple interest and the remainder at 10% annual simple interest, so that the interest earned by the two accounts is equal at the end of the year?
A. $30,000 invested at 4%; $12,000 invested at 10% B. $22,000 invested at 4%; $20,000 invested at 10% C. $12,000 invested at 4%; $30,000 invested at 10% D. $20,000 invested at 4%; $22,000 invested at 10%