# Posts by Marissa

Total # Posts: 317

**Algebra**

1)Solve by factoring:5x^2=4-19x answer=-4,1/5 2)Which quadratic equation has roots 7 and -2/3? answer=A A.2x^2-11x-21=0 B.3x^2-19x-14=0 C.3x^2+23x+14=0 D.2x^2+11x-21=0 3)To solve 4x^2-28x+49=25 by using the square root property,you would first rewrite the equation as answer=(...

*August 12, 2007*

**Algebra**

This will be a multiple post thing so please bear with me. If my answers are wrong then please explain I'll post my work as needed thanks. 1)Identify the y-intercept and the axis of symemetry for the graph of f(x)=-3x^2+6x+12. answer=12:x=1 2)Determine whether f(x)=-5x^2-...

*August 12, 2007*

**math**

write an equation for the parabola with focus (1,3) and vetex (0,3) See the paragraph Analytic Geometry Equations. You will have a choice of equations, you did not state whether the axis of symettry was parallel to x or y axis. http://en.wikipedia.org/wiki/Parabola that was ...

*August 12, 2007*

**Algebra**

Can someone please explain how to do these problems. 1)write a polynomial function of least degree with intregal coefficients whose zeros include 4 and 2i. 2)list all of the possible rational zeros of f(x)= 3x^3-2x^2+7x+6. 3)Find all of the rational zeros of f(x)= 4x^3-3x^2-...

*August 10, 2007*

**Algebra**

State the possible number of imaginary zeros of g(x)= x^4+3x^3+7x^2-6x-13 this is how far Ive gotten:there are 4 zeros,3 positive and 1 negative If you've found four real zeroes, then there are no imaginary zeroes. You can also see that there are no imaginary zeroes ...

*August 10, 2007*

**science**

Why does an ice cube melt @ room temperature? The melting point of water is zero degrees Celsius (32 degrees Fahrenheit). Room temperature is more like 20 degrees C or 68 degrees F. Therefore, heat is tranferred from the warmer room air to the colder ice cube and it melts.

*May 16, 2007*

**science**

why is a burn from steam potentially more serios than a burn from very hot water? Water at boiling temperature has a specific heat of 1 calorie per gram. Steam, however, at the same temperature, has a heat of vaporization of 540 calories/gram. Thefore, steam condenses and ...

*May 16, 2007*

**simple question! i sware!!**

Can you tell me how the number twenty-eight (28) is in everyday life? Or in other words where can you find it in everyday life? thank you! i don't need a website just give me an idea... thanks! Look at the calendar. help.. I got that already but thanks anyways.. Thank you...

*May 15, 2007*

**math**

47*120=

*April 14, 2007*

**scocial studies**

saw dust!!!!!! DUH

*April 9, 2007*

**chemistry**

0.05c

*March 7, 2007*

**Calculus**

idk tell me

*February 26, 2007*

**genetics**

No it would contain4. It would contain 4 chromosomes. 2n means its a diploid cell which contains 8 chromosomes. Gamates are haploid cells therefore contain of a diploid. i do it like this though 2n=8 2Divided into 8=4..

*February 25, 2007*

**Science**

What is the main substance made during? Photosynthesis (Broken Link Removed)

*December 14, 2006*

**Math!!**

A square quilt for a child's bed has a border made up of 32 pieces with an area of x each, and 4 small squares with an area of 1 square inch each. The main part of the quilt is made of 64 squares with an area of x squared each. If the quilt is 4 ft by 4 ft, what are the ...

*November 6, 2006*

**english essays**

Ok..so i have to write an essay over heros..i have the intro but i cant seem to start the first paragraph. HELP PLZ! THANKS RizzA First of all, do you have an outline or plan for the main ideas of your paper. The intro is probably one of the last things you should write, ...

*August 29, 2005*

**heat**

5/9 degree fahrenheit

*August 3, 2005*