Wednesday
November 26, 2014

Homework Help: math

Posted by Letty on Tuesday, September 8, 2009 at 7:08am.

1. Solve for the indicated letter
D=4e, for e The solution is e=

2. G(x) = 6/(6-5x)
Choose the correct domain below
{x|x is a real number and x ≠0}
{x|x is a real number and x≠6/5}
{x|x is a real number and x≥6/5}
{x|x is a real number and x ≠6}

3. Solve 5> -3x+4 or 9≤-3x+5
(-∞,-4/3]Ķ(-1/3,∞)
(-1/3,∞)
(-∞, -4/3]
(-∞,∞)

4. Graph the equation and identify the y-intercept
Y+x = -2

5. Solve by the elimination method
5x+6y=3
10x + 12y=6

6. Use the intercepts to graph the equation x+4y = 8

7. Graph the equation
Y=8
X=-4

8. -5≤3x-4≤-3
8x-(3x+5)=10

9. Graph the line containing the given pair of points and find the slope.
(6,2),(-6,-4)
Find the slope of the line
M=_____________

10. Solve -0,2x<-12
I think this is {x|-11.8}

11. Decide whether the pair of lines is parallel, perpendicular, or neither.
2x+3y=6
3x+2y=10

12. Collect the like terms
15r+5s-4r-7s= I think the answer is -11r+-2s

13. The width of a rectangle is fixed at 12cm. What lengths will make the perimeter 72cm.
The length must be greater than ----- cm. Is it 48

14.Solve then graph
y-7>-13

15. Find the slope and the y-intercept
F(x)=-6x-2

16. Graph the inequality on a plane
3x +4y≤12

17. Use the intercept to graph the equation
X+5y =10

18. Solve by using the substitution method
3x+5y=25
X=11-2y

19. Graph the system of inequalities
y≥-5
5≥6
Y=9/7 x+6

20. Solve by the elimination method
3r-2s=-2
2r+3s=29

21. Simplify
-9[61-(75-96)]

22. Solve the system of equations by graphing. Then classify the system as consistent or inconsistent and as dependent or independent.
9x-4t=20
4y-9x=-20
What is the solution of the system of equations?
Infinitely many solutions
A point
No solution
Is the system consistent or inconsistent?
Are the equations dependent or independent?

23. Solve the following system of equations.
X+5y=7 (1)
X=9-5y (2)
What is the solution of the system? Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
The solution is _______. Type an ordered pair.
There is no solution.
Plot (0,6) on the coordinate axes.

24.Determine the slope of a line that is (-4,5)

25. Multiply -6/5 *(1/6)

26. Solve using the multiplication principle.
-6x>1/13

27. Use the distributive property to help you solve the equation.
3(w-5) = -15
W=________

28. Solve then graph
5x≥15
Choose the correct solution
{x}x<3}
{x|x≥3}
{x|x>3}
{x|x≤3}

29. Find the slope, if it exists, of the line containing the pair of points.
(6,7) and (8,-2) the slope m=__________

30. Solve using the multiplication principle. Donít forget to perform a check.
-7/8x=-9/10

31. 50% of what number is 40?
The answer is _____________. I believe it is 80

32. 0.6x +4≤1.4x-7
The solution is {x|x___ ____}

33. 4+6x<46
The solution set is {x|x ________ _________}

34. 5/8x+1/16x=5/16+x
The solution is x=__________

35. Find the domain of the function
P(x) = X TO THE 2ND POWER Ė 2X +4
WHAT IS THE DOMAIN OF P?

36.Solve using the multiplication principle. Donít forget to perform a check.
10x=-90

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