Find the unit vector having the same direction as v.v = 12i + 5j
A. u = - 
i - 
j
B. u = 
i + 
j
C. u = 
i + 
j
D. u = 156i + 65j
Answer: B
Mathematics
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Simplify the radical expression. Assume all variables represent nonnegative real numbers.
A. 405x
B. 9x
C. 9
D. 9x
Mathematics
Provide an appropriate response.f(x) = ax
The graph of an exponential function with base a is given. Sketch the graph of 
Give the domain and range of g.
What will be an ideal response?
Mathematics
Find the equation of the tangent line to the curve when x has the given value.f(x) = 
; x = 5
A. y = -39x - 80
B. y = - 
+ 
C. y = 13x - 16
D. y = 
+ 
Mathematics
If P dollars are deposited in an account paying R percent annual interest, approximate the amount in the account after x years.P = $5000, R = 9%, x = 12 years
A. $12,902.13 B. $9950.00 C. $14,063.32 D. $10,400.00
Mathematics