# Posts by LILY

Total # Posts: 1,535

**Calculus**

A rancher wants to build a rectangular pen with an area of 150 m2. Let W be the width of the pen and L be the length of the pen. a. Find an equation for the perimeter P in terms of W and L . b. Use the given area to write an equation that relates W and L . c. Find the pen ...

*May 26, 2013*

**Algebra 2**

Thank you

*May 18, 2013*

**Algebra 2**

State the possible number of imaginary zeros of f(x)= 2x^3 - 4x^2 + 8x - 3. 0,1,3?

*May 18, 2013*

**Algebra 2**

It feels like too many problems have no solutions! Very frustrating for me. Thank you for checking it!

*May 18, 2013*

**Algebra 2**

Solve the system: y^2 - 4x^2 = 4 and y = 2x. (-1,-2)?

*May 18, 2013*

**Algebra 2**

Thank you!

*May 18, 2013*

**Algebra 2**

Find the exact solutions of x^2 - (y - 12)^2 = 144 and y = -x^2. No solution?

*May 18, 2013*

**Algebra 2**

Sorry, I'm very rusty on this concept. Thank you for the explanation.

*May 18, 2013*

**Algebra 2**

Write the expression 13m^8 - 3m^4 + 4 in quadratic form if possible. m^8?

*May 18, 2013*

**Algebra 2**

Thank you

*May 17, 2013*

**Algebra 2**

Solve the system, 4x^2 + y^2 = 20 and y = 4x. (square root of 10/2, 2 square root of 10)?

*May 17, 2013*

**Algebra 2**

At this point, I'm fooling myself!:-)

*May 17, 2013*

**Algebra 2**

Thanks

*May 17, 2013*

**Algebra 2**

Find the exact solutions of x^2 - (y - 6)^2 = 36 and y = -x^2. (0,0), (6,6), and (-6,6)?

*May 17, 2013*

**Algebra 2**

Thank you, again!

*May 16, 2013*

**Algebra 2**

The graph (x - 2)^2 + 3(y - 2)^2 = 25 is the graph of a(n) ________. Ellipse?

*May 16, 2013*

**Algebra 2**

Thank you

*May 16, 2013*

**Algebra 2**

The graph of x^2 + y^2 = 6x + 81 is the graph of a(n) _______. Circle?

*May 16, 2013*

**Algebra 2**

Thank you

*May 16, 2013*

**Algebra 2**

The graph of x^2 - 12y = 12x - 12 is the graph of a(n) ________. Parabola?

*May 16, 2013*

**biology**

For each of these restriction enzymes, determine whether or not the enzyme would cut the normal, Mutant A, Mutant B, or Mutant C DNA sequences described in part (g) and select your answers in the table below:

*May 15, 2013*

**Algebra 2**

Thank you!

*May 15, 2013*

**Algebra 2**

The graph of 11x - x^2 - 4y^2 = 2y - 16 is the graph of a(n) ________. a. circle b. ellipse c. hyperbola d. parabola C?

*May 15, 2013*

**Algebra 2**

Thanks!

*May 15, 2013*

**Algebra 2**

The graph of 5x - 9y^2 = 12 - 4y is the graph of a(n)______. a. circle b. ellipse c. hyperbola d. parabola C?

*May 15, 2013*

**Probability Math**

A committee of four students will be selected from a list that contains six Grade 9 students and eight Grade 10 students. What is the expected number of Grade 10 students on the committee?

*May 7, 2013*

**Math**

At the Statsville County Fair, the probability of winning a prize in the basketball toss game is 0.1. a) Show the probability distribution for the number of prizes won in 8 games (round to 6 decimal places). b) If the game will be played 500 times during the fair, how many ...

*May 7, 2013*

**Algebra 2**

Thank you!

*May 6, 2013*

**Algebra 2**

Find the expansion of (r + 4)^3. r^3 + (3r^2)(4) + 3r16 + 64?

*May 6, 2013*

**Physics**

To measure how far below the ocean surface a bird dives to catch a fish, a scientist uses a method originated by Lord Kelvin. He dusts the interiors of plastic tubes with powdered sugar and then seals one end of each tube. He captures the bird at nighttime in its nest and ...

*May 5, 2013*

**chem 1**

w=-P(delta)V w=(-143.0kPa)(1.35m^3) w=193.05kJ 193.05*1000=193050J

*May 2, 2013*

**social studies**

what is one power given to the state governments in the Constitution

*April 16, 2013*

**Math**

So it's rhombus

*April 16, 2013*

**Math**

Select the geometric figure that possesses all of the characteristics: (1) four equal sides (2) both pairs of opposite sides are parallel (3) it doesn't contain any right angle A) square B) parallelogram C) rhombus D) isosceles triangle I know it's not A or D

*April 16, 2013*

**Chemistry**

If there are 2L of H2 gas at .625 atm, and 1L of N2 gas at .200 atm isolated in two flasks, what are the final partial pressures of each, and the total pressure, after the valve between the two flasks has been opened and the gases are allowed to mix? Is this simply a ratio ...

*April 7, 2013*

**Busines Ethics**

Imagine you are a salesperson.When does offering a gift,Such as basketball tickets,become a bribe rather than just a sales practis ?

*April 4, 2013*

**math**

If line 1 passes through (2, -6) and (-2, -2) and line 2 passes through (-3, 2) and (2, 12), where will line 1 and line 2 intersect? a)(-4,0) b)(-2,-3) c)(-6,2) d) (-2,-2)

*April 2, 2013*

**math**

in the problem its doesn't give me an ^ its a table for an equation in this case y1=6+2x and i need to find the "y1"

*April 2, 2013*

**math**

y1=6+2x x1 y1 -3 ? -2 ? -1 ?

*April 2, 2013*

**Number Theory**

Yan was opening a new restaurant, so she went to the sign store to get letters to make a sign to hang above the storefront. When she got to the sign store, the only letters they had in stock were two copies of the letter 'X,' two copies of the letter 'E,' and ...

*April 1, 2013*

**math**

y1=6+2x x1 y1 -3 ? -2 ? -1 ?

*April 1, 2013*

**math**

y1=6+2x x1 y1 -3 ? -2 ? -1 ?

*April 1, 2013*

**math**

what is the slope of the graph? what does it mean in the context of the problem? the slope for the problem is 2 i don't understand the second question then it says what is the y-intercept and what does the y-intersept represent. for the problem the y-intercept is 3, the ...

*April 1, 2013*

**math**

what is the slope of the graph? what does it mean in the context of the problem? the slope for the problem is 2 i don't understand the second question then it says what is the y-intercept and what does the y-intersept represent. for the problem the y-intercept is 3, the ...

*April 1, 2013*

**Biochemistry**

B! i need B, my brain sucks and won't answer B

*March 31, 2013*

**Chemistry**

9.33g

*March 29, 2013*

**Algebra 2**

Solve 12^x = 14^3x. I know I need to make the bases the same, but I don't know how.

*March 22, 2013*

**Algebra 2**

Thank you!

*March 22, 2013*

**Algebra 2**

Find a value(s) that makes the expression y^2 - 16 ---------- undefined. y^2 + 16 y=4i?

*March 22, 2013*

**physics**

a 2.1 weight receives 210 j of kinetic energy by a launcher, which is pointed straight up.

*March 21, 2013*

**physics**

a 2.1 weight receives 210 j of kinetic energy by a launcher, which is pointed straight up.

*March 21, 2013*

**math**

6,000 pounds and figure it out ur self

*March 17, 2013*

**math**

Identify a variable that could be described with an approximately normal distribution, and explain how you came to this conclusion.

*March 5, 2013*

**Chemistry**

A 1.44-g sample of an unknown pure gas occupies a volume of 0.336 L at a pressure of 1.00 atm and a temperature of 100.0 degrees Celsius. What is the unknown gas?

*March 4, 2013*

**Chemistry**

A 1.44-g sample of an unknown pure gas occupies a volume of 0.336 L at a pressure of 1.00 atm and a temperature of 100.0 degrees Celsius. What is the unknown gas?

*March 4, 2013*

**science**

what combination of mediums will produce a stright line of light? how do you correct for hyperopia? how do you correct for myopia? what kind of people have an astigmatism? what part of the eye act as a lens and what part acts as a screen? how do different types of lenes bend ...

*March 3, 2013*

**Math:o**

Thank you.

*February 24, 2013*

**Math:o**

It takes a florist 3h 15min to make 3 small centerpieces and 3 large cebterpieces. It takes 6h 20min to make 4 small centerpieces abd 7 large centerpieces. How long does it take to make each small centerpiece and each large centerpiece? Write and solve a system of equations to...

*February 24, 2013*

**Algebra**

Thank you so much!:)

*February 24, 2013*

**World Geography**

The first one is c.

*February 19, 2013*

**computer**

Assume you have a computer that contains 2GB of memory. It contains four memory slots. Each slot can contain 128 MB, 256 MB, 512MB, 1 GB, or 2GB memory modules. Currently, each slot contains a 512MB memory module. What combinations of memory modules will satisfy your memory ...

*February 17, 2013*

**algebra 1**

The value, V, of a certain car after n years is given by the formula below. V = 32,000(0.75)n Based on the formula, what is the value of this car after 3 years? is it 72000

*February 15, 2013*

**algebra 1**

so is the answer 4 because 21*4 = 84

*February 15, 2013*

**algebra 1**

The formula for the volume, V, of a prism is V = Bh, where B equals the base area, and h is the height of the prism. What is the height of a prism with base area 21 cm2 and volume 84 cm3?

*February 15, 2013*

**algebra 1**

Josh hit a baseball straight up into the air. The equation below describes the height of the ball (h), in meters, as a function of time (t) in seconds. h(t) = -9.8t² + 30t + 1.5 What is the height of the ball after 3 seconds? i keep getting -195.9

*February 15, 2013*

**algebra 1**

not it is 71.6 right

*February 14, 2013*

**algebra 1**

is it 145.1

*February 14, 2013*

**algebra 1**

The formula for the height of a falling object is shown below, where h is the height of the object in meters, t is the time in seconds, and k is the height, in meters, from which the object began its fall. h = –4.9t² + k If a rock is dropped from a building that is ...

*February 14, 2013*

**Physics Grade 11**

The normal force is always perpendicular to the surface. So if the box is on a horizontal surface the Normal force it will be equal to the weith of it (mass *gravity) N= m*g N=117.6N the friction force always oposses to the movement and it will be equal to the horizontal ...

*February 10, 2013*

**Math**

Simplify the expression. 9p - 2q - 3 + 10q - 4r + 12

*February 4, 2013*

**ENG**

I'm trying to write a paragraph with levels of generality for English. Here's what I have so far... I need help with grammar and punctuation... also does it make sense ? In the city of Carson, California there is a small house on Mesa Boulevard that is shared among ...

*January 29, 2013*

**6th grade math**

I thought this wed site will help me, but this is a wed site to go to different teachers in different schools! I AM LOOKING FOR SOMETHING TO HELP ME NOT WAST TIME! This web site should at least say something to let us know what this web site is a about.

*January 28, 2013*

**Math question**

How many gallons of organge juice are in a full size family jug? I think 1 gallon?

*January 27, 2013*

**accounting**

What is the value of the following future amount? a)RM800 to be received 10 years from now discounted back to present at 10%.

*January 27, 2013*

**accounting**

What is the present value of RM6, 500 to be received 10 years from today if our discount rate is 10%?

*January 27, 2013*

**accounting**

Adam place RM2, 000 in a saving account paying 5% interest compounded annually, how much will Adam account accrue to in a)10 years b)15 years

*January 27, 2013*

**math**

What is the value of the following future amount? a)RM800 to be received 10 years from now discounted back to present at 10%. b)RM1, 000 to be received 8 years from now discounted back to present at 3%.

*January 24, 2013*

**math**

What is the present value of RM6, 500 to be received 10 years from today if our discount rate is 10%?

*January 24, 2013*

**math**

Adam place RM2, 000 in a saving account paying 5% interest compounded annually, how much will Adam account accrue to in 10years and 15years

*January 24, 2013*

**Algebra 2**

Thank you!

*January 23, 2013*

**Algebra 2**

Simplify (2y)(4xy^3). 8xy^4?

*January 23, 2013*

**Algebra 2**

Simplify the polynomial [(6x-8)-2x]-[(12x-7)-(4x-5)]. I came up with two answers: 36x^2 - 72x + 35 or -12x^2 + 8x - 2 Are either one of these the correct answer?

*January 23, 2013*

**Algebra 2**

Factor completely 4ab + 2a + 6b + 3 (2a + 3) (2b + 1)?

*January 23, 2013*

**fractions in simplest form**

i have no clue what it is

*January 17, 2013*

**Pre-AP physical science**

What is the best way to set-up my science fair project that is 40% of my 2nd semester grade and credits ?? A little lost

*January 14, 2013*

**Algebra 2**

Thank you!

*January 8, 2013*

**Algebra 2**

Solve by completing the square 3x(sqaured) - 8x - 6 = 0. Is it 4 - the square root of 34 / 3 and 4 + the square root of 34 / 3?

*January 8, 2013*

**Math**

the shadow if a metre stick is 1.3m long when a students shadow is 2.0m long. How tall is the student?

*December 17, 2012*

**maths --plse help me..**

You would try to find X first

*December 12, 2012*

**Science Hurry!!!!!!!!!!!!!!!!!!!!!!!!!!!!!**

A.

*December 10, 2012*

**Reading**

I think the answers are 5a 6d 7c 8d 9a 10b 11c 12b

*December 7, 2012*

**Reading**

Choose the option that correctly identifies the words in () in each sentence. 5. (Stretching for 210 miles) , the Thames is in England. (1 point) prepositional phrase gerund phrase participial phrase appositive phrase 6. (Eating flesh with razor-sharp teeth) is how piranhas ...

*December 7, 2012*

**MATHS**

The population of town A increases from 1,346 to 1,500. In the same period, the population of town B increases from 1,546 to 1,800. a. Find the percent of increase in population for town A and for town B. b. Which town had the greater percent of increase? Don't know what ...

*December 6, 2012*

**math**

a carpet for a small room measuring 4 ft by 7.5 ft cost $120 how much would it cost for a carpet (with the same price per square foot) for a bigger room that measures twice as long and three times as wide

*December 5, 2012*

**science**

thank you

*November 29, 2012*

**science**

HELP FAST!!!!!!!!!!!!!!!! If you see that a hot-air balloon is rising above the top of a hill, what is the top of the hill called? A. delta point B. distance system C. coordinate system D. reference point

*November 29, 2012*

**Social Studies 8**

its A weirdos

*November 28, 2012*

**English**

Please help i need to put this sentences in order and combine them in order to make sense. 1. The pizza sits on the table. 2. It is fresh from the oven. 3. It is in the middle of the table. 4. Its crust rises up. 5. The crust is thick. 6. The crust is golden brown. 7. It is ...

*November 27, 2012*

**English**

Combine the sentences below into a brief paragraph,using clear and efficient language.Remember that each sentence contains some information that is essential to the meaning of the overall paragraph; do not omit any necessary details. When you have completed the exercise, ...

*November 27, 2012*