Write in logarithmic form.
= 12-2
A. log12 
= 12
B. log
12 = -2
C. log12 (-2) = 
D. log12 
= -2
Answer: D
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A pyrotechnic display is fired upward with an initial velocity of 53 feet per second. Its height h, in feet, after t seconds (until it hits the ground) is given by
.
?
A: Make a graph of H versus t.B: The device is visible when it is 27 feet high or higher. Add the graph of 
to the graph you made in part A.C: During what time period will the display be visible?
What will be an ideal response?
Solve the given differential equation. (The form of yp is given.)D2y + 7Dy + 12y = 2x (Let yp = A + Bx.)
A. y = c1e-3x + c2e-4x + 
- 
x
B. y = c1e-3x + c2e-4x - 
+ 
x
C. y = c1e3x + c2e4x - 
+ 
x
D. y = c1e-3x + c2e-4x + 
x
Expand the expression.log5 
A. (6 log5 x)(5 log5 y) - log5 9 B. 6 log5 x + 5 log5 y + log5 9 C. 6 log5 x + 5 log5 y - log5 9 D. 6 log5 x - 5 log5 y - log5 9
Use a calculator to evaluate the logarithm.ln 111
A. 0.2117 B. 40.9594 C. 4.7095 D. 2.0453