Thursday

April 17, 2014

April 17, 2014

Number of results: 223,350

**Pre-Cal**

Yes I am, but I don't understand it. I don't have a teacher to teach me. I do my work online, and I just need 2nd semester of pre-cal to graduate.
*Saturday, March 17, 2012 at 9:29pm by Adrianna*

**pre cal**

eh? plug in 6 for x. What do you get? If you're taking pre-cal, this should be a no-brainer.
*Wednesday, June 19, 2013 at 3:19pm by Steve*

**pre cal **

does anyone take pre-cal online ?
*Monday, April 16, 2012 at 6:44pm by Mecie *

**pre-cal**

pre-cal? more like algebra I must be the review section for the x-intercept, set y=0: x=1 for the y-intercept, set x=0: y = -2
*Sunday, December 9, 2012 at 11:59am by Steve*

**math**

80 cal/g x 5 g 400g/cal or 400 cal/g not sure can any one help Neither. 80 cal/g x 5g = 400 cal. The unit g cancels to leave calories. x2+2x-15
*Monday, December 11, 2006 at 10:45pm by rena*

**pre-cal/trig**

if you get to cosx+sinx=1/square root of 2, well we are doing identities in my pre-cal class and cosx+sinx always equals 1, so it would be 1/square root of 2.
*Tuesday, March 4, 2008 at 7:44pm by emily*

**PRE-CALC still stuck**

Pre-cal? V=kT V=kr^2 I=V(1/R)
*Sunday, October 18, 2009 at 5:55pm by bobpursley*

**Integrated Physics and Chemistry**

The specific heat capacity of copper is 0.09 cal/g°C. How much energy is needed to flow into a 10-gram sample to change its temperature from 20°C to 21°C? A)0.009 cal B)0.09 cal C)0.9 cal D)9 cal
*Thursday, April 21, 2011 at 10:29am by Ashley!!*

**Pre-Cal**

YOU SHOULD KNOW HOW TO DO THIS!
*Wednesday, March 25, 2009 at 2:29pm by YOU'RE BAD AT MATH*

**Math Pre-Cal**

how would i do that
*Thursday, January 30, 2014 at 9:16pm by Holly *

**chemistry**

How many calories are required to heat 25.0 g of platinum from 24.5 °C to 75°C (specific heat of platinum = 0.139 J/gK)? 1. 47 cal 2. 42 cal 3. 48 cal 4. 20 cal 5. 80 cal Thank you.
*Sunday, November 22, 2009 at 5:30pm by Danny*

**Math: Pre Cal**

I like answer B
*Sunday, February 5, 2012 at 11:13am by Anonymous*

**science**

the conversion factor for calories (cal) and joules (J) is: 1 cal = 4.184 J now to convert calories to joules, we multiply 4000 cal by 4.184 J / 1 cal so that the cal unit will be canceled, and the numerator will have the unit J: 4000 cal * 4.184 J / cal = 16736 J hope this ...
*Wednesday, October 26, 2011 at 3:09am by Jai*

**Math (Pre Cal)**

Thank you so much. you totally rock
*Saturday, August 28, 2010 at 11:57pm by Dealie*

**MATH: Pre-Cal/Trig**

18 by 24
*Saturday, January 29, 2011 at 5:20pm by Anonymous*

**Math Pre-Cal**

what is the value of f(x)=2x^2-12x-6
*Thursday, January 30, 2014 at 9:16pm by Holly *

**Math Pre-Cal**

It ask for the Min or Max value?
*Thursday, January 30, 2014 at 9:16pm by Holly *

**Math Pre-Cal**

i really need the help i am so lost
*Thursday, January 30, 2014 at 9:16pm by Holly *

**Math Pre-Cal**

to do it with algebra, complete the square
*Thursday, January 30, 2014 at 9:16pm by Damon*

**college maths**

Mathematically, you can set up the problem as follow: 232 Cal/1.5 Cup = x Cal/1 cup 1x = 232/1.5 x = 154.7 Cal Another way, this is a no brainer question given the choices below. With 1.5 cup, you know it has 232 Cal, so with only 1 cup, you know the answer should be less than...
*Wednesday, December 15, 2010 at 2:16pm by Terry*

**Pre-Cal**

Find the standard form of the equation of the ellipse. (Remember center is midpoint between either foci or vertices) (1) 9x^2+4y^2+36x-24y+36=0 (2) Vertices: (0,5)(0,-5) Passes through the point (4,2) Centered at the origin
*Sunday, April 19, 2009 at 6:33pm by Cal*

**Math applied/pre-cal**

(-8/5)^7/4*(-8/5)^1/4=(-8/5)^(7/4+1/4) =(-8/5)^(8/4) =(-8/5)²=64/25
*Wednesday, July 11, 2012 at 1:53pm by Elena*

**Math (Pre-Cal)**

The infinite series S = 1/5 + 3/5^3 + 5/5^5 + 7/5^7 + 9/5^9 + ... converges. Find S.
*Monday, February 11, 2013 at 7:58pm by Andy*

**Math Pre-Cal**

The answer I got was 24, and it was wrong
*Thursday, January 30, 2014 at 9:16pm by Holly *

**Math pre Cal**

I have no idea what you mean by 1-cos theta -1
*Monday, June 2, 2008 at 8:48am by drwls*

**Math Pre-Cal**

If you do not know calculus you must find the vertex of that parabola.
*Thursday, January 30, 2014 at 9:16pm by Damon*

**Math**

27g / 4g/cal = 6.75 Cal. of carbs. 121 - 6.75 = 114.25 Cal. from other sources.
*Saturday, December 29, 2012 at 3:15pm by Henry*

**Math: Pre-calculus**

P=2(W+L) A=WL, so L = 180/W so, P = 2(W+180/W) This is pre-cal, so you don't have calculus at your disposal. But, you do know that a square has maximum area for a given perimeter. So, W = L = √180 = 6√5
*Sunday, October 6, 2013 at 5:35pm by Steve*

**math pre cal**

find each value round to the nearest tenth if necessary60%of80
*Tuesday, November 1, 2011 at 9:11pm by ryan*

**Math**

how many terms of the arithmetic sequence -5,-1,3,… must be added to reach the sum of 400
*Monday, October 7, 2013 at 8:48pm by Pre-Cal*

**Math Pre-Cal**

Ok I understand now on that so far. How do you find the value of a quadratic function?
*Thursday, January 30, 2014 at 9:16pm by Holly *

**Pre-Calculus**

I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much for the help =)
*Saturday, September 17, 2011 at 2:40pm by Cristina*

**Pre-Calculus**

I'm trying to finish up my pre-cal homework and I am stuck on 2 problems... ***determine the intervals over which the function is increasing, decreasing, or constant*** 32. f(x)=x^2-4x 33. f(x)=√x^2-1 (that's square root of x^2-1) thank you so much for the help =)
*Saturday, September 17, 2011 at 3:48pm by Cristina*

**Math applied/pre-cal**

(-8/5)^7/4*(-8/5)^1/4=64/25 Not sure how get this answer . Could please show me the steps.
*Wednesday, July 11, 2012 at 1:53pm by Hannah*

**Science**

A 50 gram ice cube is cooled to -10oC in the freezer. How many calories of heat are required to heat it until it becomes liquid water at 20oC? (The specific heat of ice is 0.5 cal/goC.) Answer A) 1250 cal. B) 4000 cal. C) 5000 cal. D) 5250 cal. Can someone please help me solve...
*Monday, September 26, 2011 at 1:29am by Anonymous*

**physics **

A 50 gram ice cube is cooled to -10oC in the freezer. How many calories of heat are required to heat it until it becomes liquid water at 20oC? (The specific heat of ice is 0.5 cal/goC.) Answer A) 1250 cal. B) 4000 cal. C) 5000 cal. D) 5250 cal. Can someone please help me solve...
*Monday, September 26, 2011 at 5:17pm by Allison*

**Chemistry**

You don't need the heat of vaporization to do that calculation. It takes 10g*1Cal/C g*10C = 100 Cal heat release to reduce the temperature ot 0C, and another 80 Cal/g*10 g = 800 Cal to freeze it. The sum is 900 Cal
*Saturday, April 17, 2010 at 12:35am by drwls*

**Math/Pre Cal**

Find the sum of the geometric series 128-64+32-______to 8 terms .
*Friday, December 10, 2010 at 1:59pm by Robo123*

**Math/Pre Cal**

Find the sum of the geometric series 128-64+32-______to 8 terms .
*Friday, December 10, 2010 at 2:01pm by Robo123*

**Math Pre Cal **

Find the values of the trigonometric functions of è from the information given. cot è = 1/2 , sin è < 0
*Thursday, March 7, 2013 at 10:19pm by Dani*

**Math**

120 cal/g x 4g = ?? multiply the numbers. 120 x 4 = 480 multiply the units. (cal/g) x g = cal So the answer is 480 cal. I don't know "what the proper units are" unless you mean to evaluate the units at the same time.
*Saturday, January 12, 2008 at 10:16pm by DrBob222*

**Math-Pre Cal & Trig**

Christa, the data on the time line should be shifted one space to the right.
*Sunday, July 25, 2010 at 9:38pm by Henry*

**Math (College Pre-Cal)**

For given functions f and g find formulas for a)f o g and b)g o f. Simplify results as much as possible. f(x)= x+7/x-13 , g(x)= 1/x+1
*Tuesday, September 17, 2013 at 11:42pm by Brenda *

**Math (College Pre-Cal)**

Find a formula for(f o g)(x)assuming that f(x)= e^(4-7x)and g(x)= ln(x). Give your answer in the simplest form.
*Sunday, October 20, 2013 at 1:50am by anonymous*

**Pre. Cal.**

yes
*Thursday, May 14, 2009 at 10:43pm by Reiny*

**Pre cal**

OK. Thanks. =]
*Saturday, August 29, 2009 at 6:12pm by Anonymous*

**Pre-Cal**

Thank You
*Saturday, March 27, 2010 at 5:38pm by Abbey*

**Pre-Cal**

Thank You!!
*Sunday, March 28, 2010 at 12:54pm by Hannah*

**Pre-Cal**

Thank You
*Sunday, April 4, 2010 at 5:30pm by Abbey*

**Pre Cal**

b)
*Monday, July 25, 2011 at 3:04pm by Anonymous*

**Pre Cal**

why and how do you know
*Monday, July 25, 2011 at 3:04pm by Ashley*

**Pre Cal**

Thank you!!!
*Monday, February 13, 2012 at 11:06pm by Anonymous*

**Pre-Cal**

thanks
*Saturday, March 17, 2012 at 9:29pm by Adrianna*

**Pre-cal**

thank you
*Wednesday, April 18, 2012 at 10:10am by sandra*

**Pre-cal**

to do what?
*Thursday, December 13, 2012 at 5:57pm by Steve*

**Chemistry**

1.24E7 J x (1 cal/4.184J) = 2.98E6 cal. 12 oz x 2.98E6 cal/80,000 cal = ?oz Gatorade.
*Saturday, April 20, 2013 at 7:55pm by DrBob222*

**Pre-Cal**

What are bearings??
*Tuesday, February 5, 2008 at 12:34pm by Daisy M.*

**Pre Cal**

thanks so much!
*Tuesday, February 19, 2008 at 1:01pm by Kindell*

**another pre cal (logs)**

Thank you
*Monday, March 31, 2008 at 1:14am by Deb*

**Pre-Cal**

xy=2 {{x^2=3+y^2}}
*Tuesday, October 21, 2008 at 6:16pm by Ash*

**Pre Cal.**

correct.
*Tuesday, March 31, 2009 at 9:28am by bobpursley*

**pre cal--check**

yes
*Tuesday, March 31, 2009 at 8:27pm by Reiny*

**Pre Cal.**

è is theta.
*Tuesday, April 21, 2009 at 3:12pm by Jamie*

**Pre Cal.**

correct!
*Tuesday, April 21, 2009 at 3:12pm by Reiny*

**Pre-Cal**

(-2,1) and (2,1) are the vertices.
*Saturday, May 2, 2009 at 7:37pm by Hal*

**Pre Cal**

Solve for x 2^x=8^x-3
*Tuesday, December 22, 2009 at 2:53am by Raina*

**Pre-Cal**

Everywhere BUT 0
*Thursday, March 25, 2010 at 10:22pm by Damon*

**Pre-Cal :)**

You're very welcome!
*Saturday, March 27, 2010 at 5:38pm by MathMate*

**Pre-cal**

I agree
*Saturday, May 8, 2010 at 12:23am by Reiny*

**Pre Cal**

What is the inverse of g(x)= 1/2(x-1)^3-4
*Monday, October 25, 2010 at 1:17am by Katie*

**Pre Cal**

40
*Saturday, January 9, 2010 at 5:50pm by Anonymous*

**Pre Cal**

this is wrong
*Sunday, July 24, 2011 at 8:20pm by Dalidah*

**pre-cal**

no "t" in formula
*Monday, January 16, 2012 at 8:07pm by Steve*

**Translation**

It is pre-cal
*Friday, March 23, 2012 at 4:25pm by Sebastian*

**Pre-cal**

123694587
*Thursday, May 6, 2010 at 7:21pm by Anonymous*

**Pre-Cal**

#3 = B 95
*Saturday, March 17, 2012 at 10:21pm by Ryan*

**pre cal**

what is the question?
*Wednesday, February 13, 2013 at 5:08pm by bobpursley*

**Pre cal**

second
*Thursday, January 30, 2014 at 8:42pm by shelly *

**Pre cal**

how do you find A?
*Thursday, January 30, 2014 at 8:42pm by shelly *

**pre cal**

mmmhhh? (0+3)^2 = 3^2 = 9
*Thursday, January 30, 2014 at 8:53pm by Reiny*

**pre cal**

zero
*Thursday, March 6, 2014 at 9:43am by Damon*

**pre cal**

s400
*Sunday, September 4, 2011 at 11:14pm by Halib*

**Chemistry**

Do you know the conversion factor? 1 cal = 4.184 joules and I get 4565 cal. Is that a capital C for cal. In nutrition, especially in the old days, there was a big calorie (actually a kilocalorie or Calorie) and a small calorie (a calorie). If we round the 5 to the even number...
*Friday, October 30, 2009 at 7:22pm by DrBob222*

**Math (College Pre-Cal)**

xm * 100cm/m * 1in/2.54cm * 1ft/12in * 1mi/5280ft = 125x/201168 mi
*Sunday, September 29, 2013 at 11:06pm by Steve*

**Math-Pre Cal & Trig**

A B d(cm)-10 -8 -6 -4 -2 0 2 4 6 8 10 t(se) 1 .8 .6 .4 .2 0 .2 .4 .6.8 1
*Sunday, July 25, 2010 at 9:38pm by Henry*

**Pre-Cal (again)**

If: f(x)= 3/x^2-1 g(x)= x+1 What is the domain of f, g, and f o g?
*Saturday, September 20, 2008 at 9:19pm by Crystal*

**Trig/Pre-Cal**

1 - - x > 0 x
*Sunday, September 7, 2008 at 11:18pm by Brooke*

**pre cal**

What would cos2theta=-1/2 be???
*Saturday, November 15, 2008 at 2:45pm by becca*

**pre cal**

what is the sum of e or 1n
*Sunday, January 11, 2009 at 6:07pm by ash*

**Pre-Cal**

Find f X g 3 sqrt of x+1 X x^3+1
*Thursday, February 26, 2009 at 11:32pm by Dan*

**Pre-Cal**

if 2^x=3 whats does 4^-x equal
*Thursday, February 26, 2009 at 11:32pm by Dominique*

**Pre-Cal.**

Graph it on your calculator.
*Thursday, March 26, 2009 at 9:16am by bobpursley*

**Pre Cal.**

all 3 are correct.
*Monday, June 15, 2009 at 6:29pm by Reiny*

**Pre Cal.**

All correct!
*Thursday, August 13, 2009 at 12:45am by MathMate*

**Pre Cal.**

Both correct!
*Thursday, August 13, 2009 at 12:49am by MathMate*

**Pre Cal.**

none of them are correct.
*Saturday, August 15, 2009 at 4:31pm by bobpursley*

**Pre-Cal**

Simplify e^3ln2-1
*Saturday, January 9, 2010 at 11:02pm by jamie*

**Pre-Cal**

1/sec = cos
*Friday, March 5, 2010 at 5:42pm by bobpursley*

**Pre-Cal**

yes, to your second part
*Wednesday, March 10, 2010 at 11:12pm by Reiny*

**Pre-Cal(Please help)**

Error
*Tuesday, March 23, 2010 at 1:05pm by Mark*

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