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+3146

[input]31years in milliseconds[/input]

adminJul 20, 2013

+3146

[input]12* 5/4[/input]

adminJul 20, 2013

brosnan123:
Answer :- -3( 3x+6) < = -9

- 9x - 18 < = -9

- 9x ≤ 18 - 9

- 9x ≤ 9

- x ≤ 9/9

- x ≤ 1

x ≤ - 1

This would help you better Systems of Inequalities - http://math.tutorvista.com/algebra/system-of-inequalities.html .

Solution can't be right! Inequalities switch when multiplied by -1
IE: -(-7)>6
-7<-6

the correct answer is
-1 ≤ x

GuestJul 20, 2013

I have no idea about your topic here...

clark24Jul 20, 2013

Your solution is correct. thnx for suggestion...

clark24Jul 20, 2013

To solve the equation you have to multiply the two numerators and denominators.

3\4*7/8 is (3*7)/(4*8)
=21/32

*=multiply

Hope this is helpful.

GuestJul 20, 2013

Jul 19, 2013

+3146

[input]plot(Circle((0, 0), 5), x=-10.969..11.531, -8.227..8.648)[/input]

adminJul 19, 2013

+12

3p^2-6p-18=0
completing the square

A:3(p-2)^2-30=0

since 3 is not a perfect square you want to factor it out,
3(p-2)^2
that then equals
3p^3 -6p+12
your values for p^2 and p, are correct but not the integer number you want -18 you have 12, so to get there you would have to + negative 30
so 3(p-2)^2-30=0

e^ixJul 19, 2013

Its a circle with its center at (0,0) and a radius of 5 spaces

GuestJul 19, 2013

first find the square root of that area given..

√152 = 12.3288280059379529
= 12. 3288 ft

This will be the length of one side of the square of the uncarpeted floor.
Now, since the length between the mat and the uncarpeted floor is 2ft, you will subtract this from the length we got above..

12.3288 ft - 2ft

to get

10.3288 ft.

Subsequently, the area of the carpet will be

10.3288 ft x 10.3288 ft

to get

106.68410944 sq. ft.

Good Luck...!

GuestJul 19, 2013

Hi There.

First you'll put the "like terms" together..

4x^2-5-16x^2+10+8x
=(4x^2 -16x^2)+8x+(10-5)
to get

-12x^2+8x+5

For Solving,

Using " x = [ -b ± √(b2-4ac) ] / 2a " as the formula to find 'x' , you'll have:

x = [ -b ± √(b2-4ac) ] / 2a
x = [ -8 ± √[8^2 - (4 x -12 x 8)] / (2 x -12) ]

the formula gives you two answers:

x1 = -25.43559
x2= 9.43559

Therefore, taking the positive value,

x = 9.43559 .

Good Luck..!

GuestJul 19, 2013

I think your question is like (x^2 - 4)
--------------- = 0
(x+2)
To solve this question first multiply both sides by (x+2)
then add 4 to both sides after that take square root on both sides.
This will give you answer for x.

GuestJul 19, 2013

To find x% of y quantity we multiply x and y and divide answer by 100.
So x% of y = (x*y)/100.
I hope you can calculate 5% of $35.00 from this information.

GuestJul 19, 2013

Jul 18, 2013

+3146

[input]9(x-9)=-11[/input]

9*(x-9)=-11
x-9=-11/9
x=-11/9+9
x=-11/9+81/9
x=70/9

adminJul 18, 2013

Jul 17, 2013

+3146

[input](1!+1!+1!)![/input]

adminJul 17, 2013

+3146

8C4
[input]ncr(8, 4)[/input]

adminJul 17, 2013

+16

Answer :- -3( 3x+6) < = -9

- 9x - 18 < = -9

- 9x ≤ 18 - 9

- 9x ≤ 9

- x ≤ 9/9

- x ≤ 1

x ≤ - 1

This would help you better Systems of Inequalities - http://math.tutorvista.com/algebra/system-of-inequalities.html .

brosnan123Jul 17, 2013

900.

GuestJul 17, 2013

Jul 16, 2013

+12

B. There are many ways to solve this the simpliest is you have 52 card, you cant draw that card again but you can draw any other card in the deck so that is 51 possibilities for each card so it would be 52*51, and get the answer given, this is if the order of the cards given matters, if it does not it would be alot more complex i remember getting this problem when i was in pre-calc, the question is worded incorrectly dont worry about it.

C. for this one, You are looking for the possibilities of getting ace of diamonds, and an ace of spades, you could draw the ace of diamonds first then the spade or the ace of spades first then the diamond so thats two possibilities. You are looking for the probability of draw that combination of cards, out of all the possible combinations you could have drawn. You know from the previous question there are 2652, possible combinations. and then as previously stated there are only 2 ways to get an ace of diamonds and spades. so
1/1326

D. 1. To get 2 twos you could first draw one two of any suit and then draw a second two of any of the three other suit so that would be 4*3,
or you could do it out
2 of spades first
Second
1. Diamond
2. Club
3. Heart

2 Heart first
4. Spade
5. Club
6. diamond
so on

so you have 12 possibilities out of the 2652 total possible combinations. so 12/2652, or 1/221

D2. same idea 13 diffrent possibilties to choose from the first time 12 the second. (13*12)/2652 = 1/17

e^ixJul 16, 2013

It's 6

GuestJul 16, 2013

IS THERE ANYONE HERE

GuestJul 16, 2013

Jul 15, 2013

0.023[*]c[*](89_23.3)=362

C=362/)65.7/0.023=239.56joule/kg/degree

GuestJul 15, 2013

+3146

MathDummy:
If the average cost of tuition is $10,500 in 2007

Start value = 10500

f(y) = 10500 * (1 + 0.053)^y

[input]y=0; 10500 * (1 + 0.053)^y[/input]
[input]y=1; 10500 * (1 + 0.053)^y[/input]

2017:
[input]y=10; 10500 * (1 + 0.053)^y[/input]

adminJul 15, 2013

+3146

[input]npr( 6, 4)[/input]

adminJul 15, 2013

18/14

GuestJul 15, 2013

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