Find T, N, and B for the given space curve.r(t) = 
(1 + t)3/2i + 
(1 - t)3/2j + 
tk
A. T = 
i - 
j + 
k; N = 
i + 
j ; B = - 
i + 
j + 
k
B. T = 
i + 
j + 
k; N = 
i + 
j; B = 
i + 
j + 
k
C. T = 
i - 
j + 
k; N = 
i + 
j; B = - 
i + 
j + 
k
D. T = 
i - 
j + 
k; N = 
i + 
j; B = - 
i + 
j + 
k
Answer: A
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Rewrite the polynomial in descending order.x6 + x + 9x3 + 1 + 5x2
A. 9x3 + 5x2 + 1 + x6 + x B. x + 5x2 + 9x3 + x6 + 1 C. x6 + 9x3 + 5x2 + x + 1 D. 1 + x + 5x2 + 9x3 + x6
Write the system of linear equations that the augmented matrix represents.
A.
| 20x | + 12y | = 15 |
| 5x | + 16y | = 19 |
B.
| 20x | + 12y | = 15 |
| 16x | + 5y | = 19 |
C.
| 20x | + 12y | = -15 |
| 16x | + 5y | = -19 |
D.
| 12x | + 20y | = 15 |
| 16x | + 5y | = 19 |
Solve the inequality, and graph the solution set.v2 + 10v + 24 ? 0
A. [-4, ?)
B. [-6, -4]
C. (-?, -6]
D. (-?, -6] ? [-4, ?)
Analyze the graph and write the equation of the function it represents in standard form f(x) = a(x - h)2 + k.
A. f(x) = 2(x - 1)2 - 3 B. f(x) = -2(x + 1)2 - 3 C. f(x) = 2(x + 1)2 - 3 D. f(x) = 2(x + 1)2 + 3