Solve the equation by the method of your choice. Simplify irrational solutions, if possible.4x2 + 8x + 1 = 0
A. 
B. 
C. 
D. 
Answer: D
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If a projectile is fired with an initial speed of  figure 1.png)
ft/s at an angle ? above the horizontal, then its position after t seconds is given by the parametric equations x =( figure 1.png)
cos?)t and y = ( figure 1.png)
sin?)t-16 where x and y are measured in feet.
Suppose a gun fires a bullet into the air with an initial speed of 1024 ft/s at an angle of 30° to the horizontal. After how many seconds will the bullet hit the ground? (a) 36 s (b) 64 s (c) 16 s (e) none of these
Find the first four terms of the binomial series for the given function.
-2
A. 1 - 
x + 
x2 - 
x3
B. 1 - 
x + 
x2 - 
x3
C. 1 - 
x + 
x2 - 
x3
D. 1 - 
x + 
x2 - 
x3
Add or subtract as indicated.
+ 
A. - 
B. 
C. 
D. 
Simplify the expression. Assume all variables represent positive real numbers.
A. 9xy 
B. 9xy2 
C. 3x2y2 
D. 9xy 