Perform the indicated operations and simplify the result. Leave the answer in factored form.
- 
A. 0
B. 
C. 8x
D. 
Answer: C
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The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 1 for r(t) = (9t - 3t4)i + (2 - t)j + (7t2 - 2t)k
A. a(1) = -36i - j + 14k B. a(1) = 36i + 14k C. a(1) = -9i + 14k D. a(1) = -36i + 14k
Find the vertex and the intercepts. Then graph the function.f(x) = x2 - 2x - 8
A. Vertex (- 1, - 9);
x-int = (-4, 0) and (2, 0);
y-int = (0, 8)
B. Vertex (- 1, - 9);
x-int = (-4, 0) and (2, 0);
y-int = (0, -8)
C. Vertex (1, - 9);
x-int = (2, 0) and (4, 0);
y-int = (0, -8)
D. Vertex (1, - 9);
x-int = (-2, 0) and (4, 0);
y-int = (0, -8)
Translate the description to symbolic form.The surface area for a sphere is four times the product of ? and the square of the radius.
A. 16?r2 B. 4?2r2 C. 4?r2 D. 4?r
Add or subtract as indicated.
+ 1
A. 
B. 
C. 
D. 