Thursday

January 19, 2017
Total # Posts: 443

**Genetics**

How could you use a reporter gene to see if a certain gene was an activator for an operon? Would you insert the reporter in front of the operon? Or with the activator gene?

*April 29, 2009*

**College Algebra/Inequalities**

solve the inequality x+3/x-2 less then or equal to 0

*March 20, 2009*

**Science**

I really don't understand this please can you give me an example? Am desperate!

*March 8, 2009*

**physics**

thanks for your help!!

*February 15, 2009*

**physics**

FYI - The symbols for ohms didn't work, that's what the U's with accents are.

*February 15, 2009*

**physics**

I'm confused as how to find the current for a circuit with both parallel and series resistors? R1 = 2 Ù R2 = 5 Ù R3 = 11 Ù R4 = 10 Ù V = 7 V R2 and R4 are parallel, then these are in series with R3, then this whole system is in parallel with R1...

*February 15, 2009*

**chemistry**

ii) What is the formula of 1, 3-butadiene

*February 13, 2009*

**history**

I need help with unscrambling these letters into 2 words ecnoevprmisrirtam.only hint it has to do with canada.

*January 30, 2009*

**us history**

its b

*January 17, 2009*

**artist**

WHICH ARTISTS HAVE BEEN IN THE ROMANTICISM MOVEMENT, AND PAINTED lANDSCAPES?

*November 30, 2008*

**com 140**

As a project manager, you are looking forward to completing your current project and then taking a European vacation with your bonus money. Shortly before bonuses are expected, however, you realize your team just missed reaching the financial goal for the quarter. As a result...

*August 29, 2008*

**algebra**

I am really stuck, can someone please help me with this? Multiply and simplify by factoring. Assume that all expressions under radcals represent nonnegative numbers. (type in radical form) ∛(y^13 ) ∛(16y^14 )

*July 14, 2008*

**algebra**

I have a computer progam that allows me to create the symbols.

*July 14, 2008*

**algebra**

Can someone please help me with this? Solve ∛(x+1) = 3

*July 14, 2008*

**algebra**

Do polymonials contain rational numbers as exponents?

*July 10, 2008*

**algebra**

Can someoe please help me figure this out? During the first part of a trip, a canoeist travels 63 miles at a certain speed. The canoeist travels 6 miles on the second part of the trip at a speed of 5 mph. slower. The total time for the trip is 5 hours. 1. What was the speed (...

*July 10, 2008*

**algebra**

Can someone show me how this would be simplifyed? 5^1/2 * 5^1/4

*July 10, 2008*

**algebra**

Is this a true statement? Polynomials and radical expressions differ because radical expressions contain rational numbers as exponents and polynomials do not.

*July 8, 2008*

**algebra**

Why is it important to simplify radical expressions before adding or subtracting?

*July 6, 2008*

**algebra**

How is adding radical exressions similar and different to adding polynomial expressions?

*July 6, 2008*

**algebra**

How would you explain how the laws of exponents work with rational exponents?

*July 6, 2008*

**algebra**

I think that the answer is 1173, please disregard:)

*July 4, 2008*

**algebra**

Cans omeone le me know if I arrived at the correct answer? To determine the number of deer in a game preserve, a conservationist catches 391 deer, tags them and lets them lose. Later 534 deer are caught; 178 of them are tagged. How many deer are in the preserve? I came up with...

*July 4, 2008*

**algebra**

I don't understand how to do this, can someone please help me? To determine the number of deer in a game preserve, a conservationist catches 391 deer, tags them and lets them lose. Later 534 deer are caught; 178 of them are tagged. How many total deer are in the preserve?

*July 4, 2008*

**algebra**

Find the LCM for u^3 + 6u^2 + 9u, u^2 - 6u I came up with u(u+3)(u-6) is this correct?

*July 3, 2008*

**algebra**

Can someone please help me, I'm stuck. Find all numbers for which the rational expression is undefined. 7/(3v+7)

*July 2, 2008*

**algebra**

I am having trouble with this. Add (simplify if possible) (x^2 + 11x)/(x^2 - 3x) + (x^2 - 6x)/(x^2 - 3x) I actully came up with two possible answers. (2x+5)/x-3 and (2x^2-5)/x-6x I'm not sure which answer is correct.

*July 1, 2008*

**algebra**

Find the LCM 10b^6 c^6, 5b^5 c^4, 14b^3 c^7 What is the LCM? I came up with 70(b^6)(c^7) Did I do this correctly? Thank you

*July 1, 2008*

**algebra**

Find the LCM 10b^6 c^6, 5b^5 c^4, 14b^3 c^7 What is the LCM? I came up with 70(b^6)(c^7) Did I do this correctly? Thank you

*July 1, 2008*

**algebra**

I am having trouble with this. Add (simplify if possible) (x^2 + 11x)/(x^2 - 3x) + (x^2 - 6x)/(x^2 - 3x) I actully came up with two possible answers. (2x+5)/x-3 and (2x^2-5)/x-6x I'm not sure which answer is correct.

*July 1, 2008*

**algebra**

6x^3/36x)*(49v^4/7v^2) =[(6/36)*(x^3-1)]*[(49/7)*(v^4-2)] =[(x^2)/6]*(7v^2) =(7v^2x^2)/6 Is this the right answer? I feel like I missed something.

*July 1, 2008*

**algebra**

Can someone let me know if I hve the correct answer? Divide and simplify (x^2-16)/(49x+196)÷(x-4)/28 I came up with the answer 28/49 is this correct or can it be simplified more?

*July 1, 2008*

**algebra**

I do not think that this has a solution, is that correct? (y-3)/(y-6)=3/(y-6)

*July 1, 2008*

**algebra**

I can't figure this out, can someone please help me? Add 6/(x-4)+ 6/(x+4)

*July 1, 2008*

**algebra**

Thank you:)

*June 30, 2008*

**algebra**

I am having trouble with this, can someone please help me? Add (simplify if possible) x^2 + 11x x^2 - 6x __________ + __________ x^2 -3x x^2 - 3x

*June 30, 2008*

**algebra**

I am having trouble with this, can someone please help me? Add (simplify if possible) x^2 + 11x/x^2 - 3x + x^2 - 6x/x^2 - 3x

*June 30, 2008*

**algebra**

4-v/v-9 - 2v-5/9-v I came up with v-1/v-9 Is this correct?

*June 30, 2008*

**algebra**

Solve 8/y+4 = 7/y-7 y=84 did I solve this correctly?

*June 30, 2008*

**algebra**

Solve 8/y+4 = 7/y-7 y=84 did I solve this correctly?

*June 30, 2008*

**algebra**

This problem asks me to subtract and simplify if possible 4-v/v-9 - 2v-5/9-v I came up with v-1/v-9 Is this correct?

*June 30, 2008*

**algebra**

I am having trouble figuring this out. ADD (r - 6s + 3) + (7r + 5s) + (s+5)

*June 16, 2008*

**physics**

1.2g projectil e shot horiz. at a speed of 105m/s off a 124m high cliff. a) determine time taken by the projectile to return to the ground..

*June 8, 2008*

**algebra**

On a graph, what is the slope of (-2,0); (0,1)?

*June 4, 2008*

**algebra**

I wrote this wrong on my last post, it should have read, On a graph, what is the slope of (-2,0); (0,1)?

*June 4, 2008*

**algebra**

On a graph, what would be the slope of (0,-2); (0,1)?

*June 4, 2008*

**algebra**

Using the intercepts to graph the equation X + 5y = 10 What points would I plot on the graph?

*June 4, 2008*

**algebra**

Using the intercepts to graph the equation X + 5y = 10 What points would I plot on the graph?

*June 4, 2008*

**algebra**

How would I use the intercepts to graph the equation x+2y=4 what points would I need to plot on the graph?

*June 4, 2008*

**algebra**

Is this pair of lines parallel, perpendicular, or neither? 2x+5y=7 5x-2y=8

*June 3, 2008*

**algebra**

7[76-(-47-59)]= I am to simplify this. Is the correct answer 638?

*June 3, 2008*

**algebra**

On a graph, what is the slope of the line -2,1?

*June 3, 2008*

**algebra**

7[76-(-47-59)]= I am to simplify this. Is the correct answer 638?

*June 3, 2008*

**algebra**

How would you solve this using the multiplication principle? -7x>1/15

*June 2, 2008*

**algebra**

I need help with these please. What is the solution for 0.7x+5¡Ü1.1x-8? What would be the solution for, 15a+5b-12a-8b=

*June 2, 2008*

**algebra**

Can someone help me with this please? I am trying to find the solution for 5/(4x) + 1/(8x) = 5/8 + x x = ? would the answer be x=5/3?

*June 2, 2008*

**algebra**

Would the answer be x=5/3?

*June 2, 2008*

**algebra**

Can someone help me with this please? I am trying to find the solution for 5/4x + 1/8x = 5/8 + x x = ?

*June 2, 2008*

**algebra**

What would be the slope of -3?

*June 2, 2008*

**algebra**

Graph the system of inequalities x (lesser or equal to sign)2 y (greater or equal to sign)-2x+4 I am having trouble understanding what points to plot on the graph and also how the graph should be shaded (if at all).

*May 26, 2008*

**algebra**

I am having problems with both of these questions. 1. Hockey teams receive 2 points when they win and 1 point when they tie. One season, a team won a championship with 67 points. They won 11 more games than they tied. How many wins and ties did the team have? Wins? Ties?

*May 26, 2008*

**algebra**

Can someone please help me with this? Use the set-builder notation to describe the solution. 3(3-8x)+5x<2(9+6x)

*May 26, 2008*

**I ddo not understand notation**

sorry, it didn't post correctly. Graph the system of inequalities x (lesser or equal to sign)2 y (greater or equal to sign)-2x+4 I am having trouble understanding what points to plot on the graph and also how the graph should be shaded (if at all).

*May 26, 2008*

**algebra**

Graph the system of inequalities x¡Ü2 y¡Ý-2x+4 I am having trouble understanding what points to plot on the graph and also how the graph should be shaded (if at all).

*May 26, 2008*

**algebra**

Can someone please help me with this? Use the set-builder notation to describe the solution. 3(3-8x)+5x<2(9+6x) {x„ x ?,?} Thank you

*May 26, 2008*

**algebra**

I hope that someone can help me with this. 0.3(11x+4)is greater or equal to 2.1-(x+8) I came up with the answer x less than or equal to -71/43 Is this correct?

*May 26, 2008*

**algebra**

The coffee counter charges $9.00 per pound for Kenyan French Roast coffee and $8.00 per pound for Sumatran coffee. How much of each type should be used to make a 20-lb blend that sells for $8.40 per pound? Answer: Kenyan-8 lb; Sumatran-12 lb. Can someone help me with how they...

*May 19, 2008*

**algebra**

What are some examples of real life situations where you might use polynomial division?

*May 19, 2008*

**algebra**

What are some examples of real life situations where you might use polynomial division?

*May 19, 2008*

**a**

What are some examples of real life situations where you might use polynomial division?

*May 19, 2008*

**Science**

what instrument is used to measure water vapor content of air?

*May 13, 2008*

**algebra**

Casn someone help me please? I have a graph that shows the point on the y-axis to be 5 and the point on the x-axis to be 5. I need to find a) f(3) b) the Domain c) any x valuesfor which f(x)=1 d) the Range

*May 13, 2008*

**algebra**

In 1920 the record for a certain race was 45.4 sec. in 1950, it was 41.5 sec. let R(t) = the record in the race and t the number of years since 1920. R(t)=? What is the predicted record for 2003? What is the predicted record for 2006? in what year will the predicted record be ...

*May 12, 2008*

**algebra**

what is the slope intercept equation for 8 and y intercept (0,5) y=? I got y=8x+5 is this correct?

*May 12, 2008*

**algebra**

I got y=8x+5 is this correct?

*May 12, 2008*

**algebra**

what is the slope intercept equation for 8 and y intercept (0,5) y=?

*May 12, 2008*

**algebra**

x+2y=7 2x+4y=5 are the graphs of these equations perpendicular?

*May 12, 2008*

**algebra**

for the nonlinear equation f(x)=4x+4 x=2 x=4 is it correct to say that two inputs would be 12,20. If not could you help me with two inputs? Thank you

*May 7, 2008*

**algebra**

can someone help me with the steps for finding how f(0);f(7a) are the inputs for the nonlinear function? f(x) = 3x² – 2x + 8

*May 6, 2008*

**algebra**

did the web site show you the steps? Do you have them available?

*May 6, 2008*

**algebra**

Kell, how did you find these two inputs?

*May 6, 2008*

**algebra**

can you give me an example of a nonlinear function with two inputs?

*May 6, 2008*

**algebra**

I'm stuck, what would be two inputs for this nonlinear equation? f(x) = x³ - 7 x = -2 x = 2

*May 6, 2008*

**algebra**

I'm stuck, what would be two inputs for this linear equation? f(x) = x³ - 7 x = -2 x = 2

*May 6, 2008*

**algebra**

what would the graph of interval (-4, 10) look like?

*May 2, 2008*

**algebra**

Please help me with this from a base elevation of 9500 ft., a mountain rises to a summit elevation of 14318 ft. over a horizontal distance of 15847 ft. would the grade of the peak be 3.3%

*April 28, 2008*

**algebra**

from a base elevation of 9500 ft., a mountain rises to a summit elevation of 14318 ft. over a horizontal distance of 15847 ft. would the grade of the peak be 3.3%

*April 28, 2008*

**algebra**

I need to find what percent the grade is

*April 28, 2008*

**algebra**

from a base elevation of 9500 ft., a mountain rises to a summit elevation of 14318 ft. over a horizontal distance of 15847 ft. I cannot figure out the grade of the peak. Can someone please help me?

*April 28, 2008*

**algebra**

y=1/2x I determined that the ordered pairs tha could be graphed are 0,2 and 3,0 I'm not sure if these are correct and I am unable to determine the y intercept. Is it 4?

*April 28, 2008*

**algebra**

2x+6y=60 in determinng the x and y intercept I came up with the order pair 0,-10 Is this correct?

*April 28, 2008*

**algebra**

a car rents for $35 per day plus .22 per mile. You are on a daily budget of $90. what mileage will allow you to stay within your budget? Would the correct answer be 1.6?

*April 28, 2008*

**algebra**

I am trying to figure out how to graph 3y-9=3x What would the intercepts be?

*April 28, 2008*

**algebra**

what is the y and x intercept of -16x+y=28?

*April 28, 2008*

**algebra**

is 2 a solution to the inequality, 9+12x<6x-6

*April 25, 2008*

**algebra**

-5y>13 Is the solution to this inequity y < - 13/5?

*April 22, 2008*

**algebra**

how can you determine if two lines are perpendicular?

*April 17, 2008*

**algebra**

how do you find the ordered pairs for a graph for example y=2x

*April 15, 2008*

**algebra**

how do you find the ordered pairs for a graph for example y=2x

*April 15, 2008*