Pre-Calculus Chapter 11 Assignment Sheet
Wednesday, May 1 11.1 Odds do #13 and 27 by hand (graph paper)
Friday, April 25
11.2 multiples of 3; Follow the directions. If you are asked to
sketch, use graph paper, if you are asked to use your calculator,
copy
Chapter 11 Formula Sheet
Ellipse
x2 y2
1
a2 b2
or
x2 y2
1
b2 a2
Foci: c 2 a 2 b 2
Hyperbola
x2 y2
1 or
a2 b2
y2 x2
1
a2 b2
Foci: c 2 a 2 b 2
b
a
Asymptotes: y x or
y
Parabola
y 2 4 px or x 2 4 py
Directrix: x p or
Focus: (p,0) or (0,p)
y p
a
x
b
Chapter12
Section 12.1, page 788
1. Yes 3. Yes 5. No
,2 __Z _Z 1_
7\~5,1/ 5 9.x 7,1 7
_§ :72 _£ C+2d
11 I 2, 2 13.12,y 2
15. x=28,i/=22 17.x=2,}/:#]
19. Inconsistent
21. x = b, y = 3b; 4, where 17 is any real number
23_ x 2 b, y = 3b 47 2, w
Chapter 10 Formula Sheet
Law of Cosines: In any triangle ABC, with lengths a, b, c ;
a 2 b2 c 2 2bc cos A
b2 a 2 c 2 2ac cos B
c 2 a 2 b2 2ab cos C
b2 c 2 a 2
2bc
a
b
c
sin A sin B sin C
cos A
Law of Sines:
Supplementary Angle Identity: If 0< < 90, then
Geometry Practice Quiz 4-1 Through 4-4
1. Obtuse triangle
2. Answers will vary but for an acute triangle all angels must be less than 90, for a right
triangle there must be one 90 angle & for the obtuse triangle one angle must to be greater
than 90. All t
Geometry Chapter 4 Pre-Test Answer
1.
=
2. 68.5
3. m
=
4. m
5.
(2x + 3) cm
(2x + 3) cm
4x cm
2x + 3 + 2x + 3 + 4x = 50 (solve for x)
x = 5.5 cm
6. Isosceles Triangle & Obtuse Triangle
7. Obtuse Triangle
8. C, they add up to 91
9. B (ABC DEF)
10. AC is the