ALG 2, Need some major help :(

dgill27

New member
Joined
Mar 15, 2012
Messages
7
I'm pretty lost on these right now. If you can even just give me a couple hints on how to figure some of them out I'd appreciate it!
Thank You!! :)


1. Express this product in simplest terms:
4x^2 + 4x + 1 / x^3 - x^2 * x^3 - 2x^2 + x / 2x^2 - x - 1
The Numerator of the result is?

2. A circle is defined by the following equation:
-2x^2 - 2y^2 + 24x - 54 = 0.
What is the radius?

3. If -2/x+4, - 3 = 4x/x+4 then x= ______?
A) -2
B) -2/3
C) 2/7
D) 3

4. A vertical parabola has vertex (1,2) and y intercept -3, what awaits x intercepts?
A) 1+- sqrt 2
B) 1+- sqrt 10 /5
C) 1 +- sqrt -40 /10
D) 1 +- 2 sqrt 10 /5
E) It does not cross the x axis

5. What are the solutions to the equation?
x - sqrt -2x + 10 = 1
Enter all solutions: X=________

6. Find the Foci of the ellipse
25x^2 + 16y^2 - 50x - 96y - 231 = 0
A) (3,3) and (-1,3)
B) (1,7) and (-1,1)
C) (-2, 3) and (4,3)
D) (1,6) and (1,0)

7. The San Francisco earthquake of 1906 had an intensity 10^8.75 times a intense as the minimal level. What kind of magnitude on the richter scale? The magnitude of an earthquake is measured on the richter scale by R=10g10 x, where X is ratio of the earthquake intensity to the normal level set previously
A) 8.75
B) 1.1
C) 10^8.75
D) 875

8. Solve for x: 3x^2 - 2 = 27
Enter all solutions

9. Simplify as much as possible
( 4x + 8y / 3xy ) divided by ( 3x + 6y / 9xy ) is ________
A) 4xy / xy
B) 4
C) 4x + 8y / x + 2y
D) 4xy

10. the center of the circle that passes through the points (1,1) , (0,2) and (-1,1) is ______
A) The center cannot be determined by the data
B) (1,0)
C) (0,0)
D) (0,1)

11. The distance from (2,1) to (9,6) is:
 
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