The position vector of a particle is r(t). Find the requested vector.The velocity at t = 
for r(t) = 4 sec2(t)i - 6tan(t)j + 1t2k
A. v
= 16i + 12j - 
?k
B. v
= -12j + 
?k
C. v
= -12j - 
?k
D. v
= 16i - 12j + 
?k
Answer: D
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Write as a proportion.12 is to 2
as 36 is to 7
.
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Provide an appropriate response.Suppose that consumers will demand 800 units of a product when the price is $10 per unit, and 1000 units when the price is $8 per unit. Find the demand equation for the product assuming that price p and quantity q are linearly related.
Fill in the blank(s) with the appropriate word(s).
Solve the problem.When an object is dropped to the ground from a height of h meters, the time it takes for the object to reach the ground is given by the equation t = 
, where t is measured in seconds. Solve the equation for h. Use the result to determine the height from which an object was dropped if it hits the ground after falling for 3 seconds.
A. h = 24.01t2; 216.1 m B. h = 4.9t2; 44.1 m C. h = 4.9t; 14.7 m D. h = 24.01t; 72 m
For the given function expressed verbally, give a graphical representation. To convert x inches to y centimeters, multiply x by 2.54. Let y = f(x) and 0?x?50.
A. 
B. 
C. 
D. 