Find the derivative at the given x-value with the appropriate rule.
?
?
A. -9
B. -32
C. 0
D. -4.5
E. 9
Answer: D
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Find the square root correct to the thousandths place.
A. 5.000 B. 2.236 C. 2.241 D. 2.233
Solve the problem.The length ? of a metal rod used in manufacturing cars must not differ from the standard s by more than 0.3 inches. The manufacturing engineers express this as 
Find the limits of ? if the standard s is 20.3.
A. 20.6 ? ? ? 20.9 B. ? ? 20 or ? ? 20.6 C. 20 ? ? ? 20.6 D. ? ? 20.6 or ? ? 20.9
Find the vertex, focus, and directrix of the parabola with the given equation.(y + 1)2 = -20(x + 3)
A. vertex: (3, 1) focus: (-2, 1) directrix: x = 8 B. vertex: (-3, -1) focus: (-8, -1) directrix: x = 2 C. vertex: (-3, -1) focus: (2, -1) directrix: x = -8 D. vertex: (-1, -3) focus: (-6, -3) directrix: x = 4
Refer to the figure in following problems. Answer True or False.
1. AB\\CD
2. m? = m?3
3. m?1+m?3 = m?ADC
4. AB = CD
5. m?2 = 40°