Find the LCM.x2 - 9x + 20, 4x - 20
A. 4(x - 4)(x + 5)
B. 4(x + 4)(x - 5)
C. 4(x + 4)(x + 5)
D. 4(x - 4)(x - 5)
Answer: D
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The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds).s = 8 sin t - cos tFind the body's velocity at time t = ?/4 sec.
A. - 
m/sec
B. 
m/sec
C. - 
m/sec
D. 
m/sec
Solve by using the square root property.(x + 4)2 - 6 = 0
A. -2 + 
, -2 - 
B. 2, 10
C. 4 + 
, 4 - 
D. -4 + 
, -4 - 
Use quotient identities to find the indicated function value.cos ? = 
, tan ? = 
; find sin ?
A. 
B. 
C. 
D. 
Solve the problem.The weight of a liquid varies directly as its volume V. If the weight of the liquid in a cubical container 4 cm on a side is 192 grams, find the weight of the liquid in a cubical container 5 cm on a side.
A. 15 grams B. 375 grams C. 105 grams D. 125 grams