Multiply and simplify.
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.The number of periods needed to double an investment when a lump sum is invested at 10%, compounded semiannually, is given by n = log1.05 2. Find the number of years before the investment doubles in value, to the nearest tenth of a year.
A. 3.6 years B. 7.1 years C. 14.2 years D. 28.4 years
Solve the problem.Suppose A0dollars is deposited in a savings account paying 6.5% interest compounded continuously. After x years the account will contain 
dollars. If $590 is initially deposited in this account, how much would be in the account after 11 years? Round to the nearest cent.
A. $2.04 B. $2372.74 C. $629.62 D. $1206.07
Solve the problem.As the temperature of a light bulb's filament changes from T1 to T2, the energy that the filament radiates changes by the quantity 
Multiply to find this change.
A. a
- a 
B. a
C. a
+ a 
D. a 
Find the magnitude 
and direction angle ?, to the nearest tenth of a degree, for the given vector v. v = -3i - 4j
A. 5; 233.1° B. 5; 216.9° C. 5; 53.1° D. 7; 233.1°