Solve the problem.The BBQ committee always orders one pound of ribs for each person who signs up for the Homecoming BBQ, plus 10 extra pounds of ribs. If the committee ordered 120 pounds of ribs this year, find the number of people who signed up for the BBQ.
A. 130 people
B. 10 people
C. 110 people
D. 120 people
Answer: C
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Solve the problem.The length of one arch of the curve y = 3 sin 2x is given by L = 
Estimate L by the Trapezoidal Rule with n = 6.
A. 5.8169 B. 6.1995 C. 6.2807 D. 6.4115
The triangles are similar. Find the missing length x and the missing angles A, B, C.
A. x = 32; A = 25; B = 14; C = 141 B. x = 16; A = 141; B = 14; C = 25 C. x = 32; A = 14; B = 25; C = 141 D. x = 16; A = 25; B = 14; C = 141
Find an exact value.tan 15°
A. 2 - 
B. 
C. 
- 2
D. 
Find the vertex, focus, and directrix of the parabola with the given equation.(y + 4)2 = -4(x - 3)
A. vertex: (3, -4) focus: (2, -4) directrix: x = 4 B. vertex: (-4, 3) focus: (-5, 3) directrix: x = -3 C. vertex: (-3, 4) focus: (-4, 4) directrix: x = -2 D. vertex: (3, -4) focus: (4, -4) directrix: x = 2