Solve the equation.9x - 4x = -10
A. {- 
}
B. {2}
C. {
}
D. {-2}
Answer: D
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For the smooth curve r(t), find the parametric equations for the line that is tangent to r at the given parameter value 
r(t) = (6t2 - 6t)i + (t + 3)j + k ; t0 = 2
A. x = 18t, y = t, z = t B. x = 12 + 18t, y = 5 + t, z = 0 C. x = 12 + 18t, y = 5 + t, z = 1 D. x = 12 + t, y = t, z = t
The function s = f(t) gives the position of a body moving on a coordinate line, with s in meters and t in seconds.s = 8t - t2, 0 ? t ? 8Find the body's displacement and average velocity for the given time interval.
A. 0 m, 0 m/sec B. 128 m, -8 m/sec C. 128 m, 16 m/sec D. -128 m, -16 m/sec
Write the expression in the form a + bi.
A. 
B. - 
- 
i
C. 
- 
i
D. 
+ 
i
Use transformations of the graph of y = x4 or y = x5 to graph the function.f(x) = 
x5 
A. 
B. 
C. 
D. 