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+3144

adminJan 31, 2012

+3144

[input]x*0.64=56[/input]

64% = factor 64(100

x*(64/100)=56 | /(64/100)
x = 56 * 100/64
x = 87.5

adminJan 31, 2012

+3144

[input]solve( C=5/9(F-32), F )[/input]

adminJan 31, 2012

IT'S OK. BUT SO CONFUSINGGGGG d:

GuestJan 31, 2012

(8)^4/3=16

sa_ad0107Jan 31, 2012

F=(9/5)C+32

sa_ad0107Jan 31, 2012

You have been given a right triangle. The side adjacent to the 42 degree angle is 100'; call the side opposite the 42 degree angle h, the height of the cliff.

tan 42 = h/100 => h = 100(tan 42) = 100(0.900)
So h = 90 feet.

GuestJan 31, 2012

Cool, my friends and I thank you.

GuestJan 31, 2012

+3144

[input]lim( (3-y)^4/3 , y=-5)[/input]

adminJan 31, 2012

x and divide; if double negative always positive and if has a negative # always negative

GuestJan 31, 2012

Alot

GuestJan 31, 2012

Jan 30, 2012

+3144

http://web2.0calc.com/calclets/?new

adminJan 30, 2012

+3144

[input]45+x*30=25+x*35[/input]

adminJan 30, 2012

+3144

nessapierce9:
-2b+1=-3b+6
b+1=6
b=5

correct

[input]-6b + 1 + 4b = -3b + 6[/input]

adminJan 30, 2012

+3144

adminJan 30, 2012

+3144

[input]x^2+124=0[/input]

adminJan 30, 2012

+3144

vonn_baby:
The scale on a map is 7cm : 6km.

If two cities are 28cm apart on the map, what is the actual distance in km between the two cities?

7cm : 6km
then 1cm represents what distance in km? 1cm : 6km/7

[input]28 * 6/7 in km[/input]

adminJan 30, 2012

Can I answer my own question? Methinks it would be as follows, but would like to verify:
1/5 = 13/5 = 25/5 = 5 mod 12.
2/5 = 14/5 = 26/5 = 38/5 = 50/5 = 10 mod 12.
3/5 = 15/5 = 3 mod 12.
4/5 = 16/5 = 28/5 = 40/5 = 8 mod 12.
Can this be done on the sci calculator? Could not find a way to do it.

GuestJan 30, 2012

+3144

[input]4*(3/4)-4[/input]
[input]-4*(3/4)-4[/input]

adminJan 30, 2012

+3144

[input]x/-9=-6[/input]

adminJan 30, 2012

+3144

good question:
[input](1, 2, 3)+(4, 5, 6)[/input]

adminJan 30, 2012

+3144

Quote:
what is the answer to -5/2x>30?

-5/2x > 30

-5/2x results in a problem at x=0:
so let's see the plot:
[input]plot( -5/(2x) , 30, x= -1..1, -10..40 )[/input]

as you can see, for all x>0 the result of -5/2x will be less than zero.

for x < 0:

-5/(2x)
x in the denominator, so try the reciprocal value: (switch > to <)

-5/2x > 30 | reciprocal
(2x)/-5 < 1/30
(2x) < -5/30 |*(-5)
x > -5/60 |/2
x > -1/12

so the result is: -1/12 < x < 0

adminJan 30, 2012

Thank you but I don't know what you are saying. I speak english

GuestJan 30, 2012

4/10.(0,3)-3710.(0,04)işleminin sonucu aşağıdakilerden hangisidir?
a)0,108 b)1,08 c)10,8 d)108

GuestJan 30, 2012

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