Add or subtract as indicated. Simplify, if necessary.
- 
A. 
B. - 
C. 
D. - 
Answer: B
Mathematics
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Determine whether the relation is or is not a function.
A. Function B. Not a function
Mathematics
Use the ac method to factor the trinomial, or state that the trinomial is prime.8x2 - 18x + 9
A. (8x + 3)(x + 3) B. prime C. (2x + 3)(4x + 3) D. (2x - 3)(4x - 3)
Mathematics
Find all the roots of the complex number. Put answers in standard form.Square roots of 4 + 4
j
A. 
- 
j, - 
+ 
j
B. - 
- 
j, 
- 
j
C. 
+ 
j, - 
- 
j
D. 
+ 
j, - 
- 
j
Mathematics
Solve the problem.The number of periods needed to double an investment when a lump sum is invested at 2%, compounded semiannually, is given by n = 
. Find the number of years before the investment doubles in value, to the nearest tenth of a year.
A. 34.8 yr B. 139.3 yr C. 69.7 yr D. 17.4 yr
Mathematics