Divide and simplify.
÷ 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Multiply or find the special product.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Clear fractions then solve by substitution.
+ 
= 4
- 2y = 21
A. {(6, -8)} B. {(-6, 8)} C. {(x, y)| 7x + 5y = 48} D. ?
Mathematics
Solve the problem.The voltage E in an electrical circuit is given by E = 1.2 cos 80?t, where t is time measured in seconds. Find the amplitude.
A. 1.2 B. 80? C. 2.4 D. 80
Mathematics
Jane needs $30,000 to buy another new car in eight years. How much should she deposit at the end of each half year into an account that earns 4% interest compounded semiannually?
A. $1663.37 B. $1263.36 C. $160.95 D. $1609.50 E. none of these
Mathematics