Tuesday

September 27, 2016
Total # Posts: 1,114

**Algebra **

Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. x² – 21 = –4x • 7, 3 • –7, 3 • 7, –3 • –7, –3

*April 4, 2014*

**Algebra**

What is the value of c so that y = x² + 9x + c is a perfect square trinomial?

*April 4, 2014*

**Algebra**

Find the solutions to the system. y = x² + 5x + 6 y = 4x + 12 (1 point)

*April 4, 2014*

**Algebra**

Solve the equation by completing the square. x² – 7x – 4 = 0 • 7.53, –0.53 • –7.53, –0.53 • –7.53, 0.53 • 7.53, 0.53

*April 4, 2014*

**Algebra**

Thanks so much

*April 4, 2014*

**Algebra **

I can't figure this out.. A physics student stands at the top of hill that has an elevation of 37 meters. He throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the equation y = –...

*April 4, 2014*

**Algebra - help**

That did not help with the choices of .56 or .23 Any more help will be appreciated.

*April 4, 2014*

**Algebra - help**

A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = –0.06x² + 9.6x + 5.4 where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket ...

*April 4, 2014*

**Algebra**

A physics student stands at the top of hill that has an elevation of 37 meters. He throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the equation y = –0.02x² + 0.8x + 37 where ...

*April 4, 2014*

**Algebra**

Thanks

*April 4, 2014*

**Algebra**

Solve the equation using the Zero Product Property. (3x + 1)(x – 5) = 0 • and 5 • and –5 • and 5 • and –5

*April 4, 2014*

**Algebra**

A community group is planning the expansion of a square flower garden in a city park. If each side of the original garden is increased by 9 meters, the new total area of the garden will be 169 square meters. Find the length of each side of the original garden. • 9 m •...

*April 4, 2014*

**Algebra**

A catapult launches a boulder with an upward velocity of 184 feet per second. The height of the boulder, (h), in feet after t seconds is given by the function h(t) = –16t² + 184t +20. How long does it take the boulder to reach its maximum height? What is the boulder...

*April 3, 2014*

**Algebra**

That helps alot - Thanks.

*April 3, 2014*

**Algebra**

If an object is dropped from a height of 144 ft, the function h(t) = –16t² + 144 gives the height of the object after t seconds. When will the object hit the ground? • 1.5 s • 3 s • 6 s • 9 s

*April 3, 2014*

**Algebra**

Thank you but could it also be 160.56 m or 160.23 m?

*April 3, 2014*

**Algebra**

A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = –0.06x² + 9.6x + 5.4 where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket ...

*April 3, 2014*

**Physics**

What pressure is exerted by the tip a nail struck with a Force of 20,000N? Assume the tip is a 1.5mm-radius circle.

*April 1, 2014*

**English 10th grade**

Actually the answer is: his children - took the test.

*March 25, 2014*

**English 10th grade**

In "Like the Sun," all of the following would be considered "casualties" of Sekhar's truth except his • children • colleagues • headmaster • wife It almost seems it could be any of them but I need the right one.

*March 25, 2014*

**Algebra**

Thank you

*March 25, 2014*

**Algebra**

Which kind of function best models the set of data points (–3, 18), (–2, 6), (–1, 2), (0, 11), and (1, 27)? • linear • quadratic • exponential • none of the above

*March 25, 2014*

**Algebra**

Which expression gives the solutions of –5 + 2x² = –6x?

*March 24, 2014*

**English 10th grade**

Thank you - now it makes sense.

*March 24, 2014*

**English 10th grade**

This is confusing to me: "Truth, Sekhar reflected, is like the sun. I suppose no human being can ever look it straight in the face without blinking or being dazed. He realized that, morning till night, the essence of human relationships consisted in tempering truth so ...

*March 24, 2014*

**Algebra**

Thank you

*March 24, 2014*

**Algebra**

A box shaped like a rectangular prism has a height of 17 in and a volume of 2,720 in³ The length is 4 inches greater than twice the width. What is the width of the box? • –10 in • 8 in • 20 in • 40 in

*March 24, 2014*

**Biology**

The integumentary system includes • skin only** • hair only • nails only • skin, hair, and nails Is my answer correct? the **

*March 22, 2014*

**algebra**

yes, thanks, i solved the same:)

*March 21, 2014*

**algebra**

The manager of a bulk foods establishment sells a trail mix for $6 per pound and premium cashews for $13 per pound. The manager wishes to make a 315-pound mixture that will sell for $8 per pound. How many pounds of each should be used?

*March 21, 2014*

**history**

who wrote the song bobby magee. who sang the origional version of this song. In what year did the song become popular

*March 20, 2014*

**Biology**

How do the kidneys clean the blood? (1 point) • Kidneys clean the blood by breaking down nutrients. • Kidneys clean the blood by filtering it to remove wastes. • Kidneys clean the blood by absorbing nutrients. • Kidneys clean the blood by destroying ...

*March 20, 2014*

**Algebra**

Which of the following is a solution of x² + 14x + 112 = 0? If necessary, round to the nearest hundredth. (1 point) • x = –0.24 • x = –4.24 • 4.24 • no solution

*March 18, 2014*

**Algebra**

One more rectangular-shaped piece of metal siding needs to be cut to cover the exterior of a pole barn. The area of the piece is 30 ft². The length is 1 less than 3 times the width. How wide should the metal piece be? Round to the nearest hundredth of a foot (1 point) &#...

*March 18, 2014*

**English**

Thank you.

*March 18, 2014*

**English**

None that I can see but I think the answer is either 2 or 3. Correct?

*March 18, 2014*

**English**

Which of the following sentences from "Five Hours to Simla" best illustrates the mood of frustration? (1 point) • "After the first cacophony of screeching brakes and grinding gears. there followed the comparatively static hum of engines, and drivers waited ...

*March 18, 2014*

**English**

Thank you.

*March 18, 2014*

**English**

Yes, but they don't help me know exactly what the answer is. It could be all of them. I think it might be "giddy".

*March 18, 2014*

**English**

Sorry, I left out a "mood" Read the following sentences from "Five Hours to Simla." The baby let drop its narcotic rubber teat, delighted. Its eyes grew big and shone at all it saw flowering about it. The little girl was perplexed, wondering what to choose ...

*March 18, 2014*

**English**

Sorry, I left out a mood.

*March 18, 2014*

**English**

Read the following sentences from "Five Hours to Simla." The baby let drop its narcotic rubber teat, delighted. Its eyes grew big and shone at all it saw flowering about it. The little girl was perplexed, wondering what to choose from so much till the perfect choice ...

*March 18, 2014*

**Finance**

how much should be paid for a bond with a coupon rate of 3.8% a yield to maturity of 6.2% and it wil mature in 7 years

*March 10, 2014*

**Physics**

Thank u Damon for your help

*March 10, 2014*

**Physics**

What is the work done by a crane that lifts a 1,200kg object 30m?

*March 10, 2014*

**Physics**

Thank you

*March 10, 2014*

**Physics**

The rockets on a cell phone satellite provide a thrust of 12,000N. If the mass of the satellite is 15,000kg, What will be the resulting acceleration?

*March 10, 2014*

**Physics**

What exactly is the formula for it n jow did u get it?

*March 10, 2014*

**Physics**

If you throw a 0.5 kg ball straight up with a speed of 10 m/s, how high will it go?

*March 10, 2014*

**Algebra word problem**

A family is building a rectangular patio in their backyard. The rectangular yard has dimensions of (8x+2) by (6x + 3) and they are planning the patio to be (x + 5) by (3x + 1). What is the area of the remaining yard after the patio has been built?

*March 7, 2014*

**Algebra**

The area of a rectangular art studio is given by the trinomial 24x2 – 4x – 8. What are the possible dimensions of the studio? Use factoring.

*March 7, 2014*

**Algebra**

The area of a rectangular table is given by the trinomial x2 + 7x – 30. What are the possible dimensions of the rectangle? Use factoring.

*March 7, 2014*

**Algebra word problem**

The area of a rectangular garden is given by the trinomial x2 + 6x – 27. What are the possible dimensions of the rectangle? Use factoring.

*March 7, 2014*

**Algebra**

A sports team is building a new stadium on a rectangular lot of land. If the lot measures 6x by 10x and the sports field will be 1x by 4x, how much of the lot will be left over to build bleachers on?

*March 7, 2014*

**Algebra word problem**

A family is having a pool built in their backyard. If their yard is rectangular and measures 7x by 6x and the pool is circular with a radius of 2x how much of the yard will be left over after the pool is built?

*March 7, 2014*

**Algebra - help**

A biologist studied the populations of common guppies and Endler’s guppies over a 6-year period. The biologist modeled the populations, in tens of thousands, with the following polynomials where x is time, in years. common guppies: 3.1x2 + 6x + 0.3 Endler’s guppies: ...

*March 7, 2014*

**Algebra**

A sphere has a radius of 4x + 1. Which polynomial in standard form best describes the total surface area of the sphere? Use the formula S = 4(pi)r2 for the surface area of a sphere.

*March 7, 2014*

**Algebra**

A community group is building a playground on a rectangular lot of land. The lot measures 6x by 9x and they want to cut out an area for a circular jungle gym with a radius of 4x. How much of the land will be left over after the jungle gym is built?

*March 7, 2014*

**Algebra**

A biologist studied the populations of common guppies and Endler’s guppies over a 6-year period. The biologist modeled the populations, in tens of thousands, with the following polynomials where x is time, in years. common guppies: 3.1x2 + 6x + 0.3 Endler’s guppies: ...

*March 7, 2014*

**Algebra**

What is the factored form of the following expression? x2 – 4xy – 21y2

*March 6, 2014*

**Algebra**

The area of a rectangular room is given by the trinomial x2 – 3x – 28. What are the possible dimensions of the rectangle? Use factoring.

*March 6, 2014*

**Algebra**

Factor 6x3 + 5x2 – 18x – 15 (1 point)

*March 6, 2014*

**Algebra**

Simplify the product using FOIL (6x – 5)(2x – 3) (1 point)

*March 6, 2014*

**Algebra**

A family is building a new house on a rectangular lot of land. The lot measures 7x by 11x and the house will be 2x by 3x. How much land will be left for their yard after the house is built? (1 point)

*March 6, 2014*

**Algebra**

A family is building a new house on a rectangular lot of land. The lot measures 7x by 11x and the house will be 2x by 3x. How much land will be left for their yard after the house is built? (1 point)

*March 6, 2014*

**Science**

It is carbon offsets. you are welcome.:)

*March 2, 2014*

**Art and Creative Development**

Manipulating and transforming ideas and materials indicates

*March 2, 2014*

**Algebra**

(-m)^-3n if m = 2 and *n=-24

*February 3, 2014*

**algebra**

A science teacher has a supply of 50% sugar solution and a supply of 80% sugar solution. How much of each solution should the teacher mix together to get 105 mL of 60% sugar solution for an experiment ?

*January 17, 2014*

**electrical**

How can one put a polarized plug into a non-polarized socket?

*December 28, 2013*

**math**

convert to years, expressed in decimal form to the nearest hundredth. 6 months 6months = ___ year

*December 17, 2013*

**math**

what is the equivalent markup based on cost of a water fountain that is marked up 69% based on the selling price?

*December 17, 2013*

**Mathematics**

Thank you

*December 17, 2013*

**psychology**

the legal requirement that professionals notify appropriate authorities about cases in which children and certain other groups of vulnerable individuals are being abused is referred to as a) parens patriae. b)informed consent. c)duty to warm. d)mandated reporting.

*December 11, 2013*

**Physics**

In this section assume the sound speed in air is 343 m/s. A goose flying toward you at 12.6m/s emits a squawk, which you hear at 258Hz . A)Find the wavelength of the sound you hear B)Find the wavelength of the sound you hear if the goose emits the same squawk while flying away...

*December 2, 2013*

**Physics**

A 4.06m long organ pipe is open on both ends. A)Find its fundamental frequency. B)Find its first three overtone frequencies

*December 2, 2013*

**Physics**

Ultrasound with f = 4.4MHz is used in a medical imager A)Find the wavelength in air, with sound speed 343 m/s. B)Find the wavelength in muscle tissue, with v = 1580 m/s

*December 2, 2013*

**Statistics**

125/500 women soda drinkers indicate they drink diet soda. At the .01 level, does this evidence indicate that more than 20% of the women soda drinkers drink diet soda? Determine and explain the P-value please. I have the numbers...just cannot explain. Please help.

*November 23, 2013*

**physics**

Find the distance by which a 42cm diameter, 9.4m tall concrete column is compressed when it supports a 12900kg load

*November 19, 2013*

**physics**

How big would a spherical helium balloon have to be to lift a 70kg person? The mass of the balloon's skin is 4.0kg

*November 19, 2013*

**physics**

Water flows at 0.860m/s from a hot water heater, through a 450-kPa pressure regulator. The pressure in the pipe supplying an upstairs bathtub 3.70 m above the heater is 414-kPa. What's the flow speed in this pipe?

*November 19, 2013*

**statistics**

Please help- A random sample of n=500 households where 150 have combined cable,phone, and internet service. Firrst, calculate p-hat, the sample proportion of households having such service. Then use a confidence level for pi, the proportion of all households in this area that ...

*November 13, 2013*

**statistics**

standard deviation 1.2. Random selection of 70 found a mean of 5.2. I have to find a 87% confidence level given this info?

*November 13, 2013*

**english**

What does this quote mean/significance?-Candide by Voltaire-"Men... must have corrupted nature a little, for they were not born wolves, and they have become wolves. God did not give them twenty-four-pounder cannons or bayonets, and they have made bayonets and cannons to ...

*November 3, 2013*

**math**

determine ratio for 4 feet to 32 inches & 10 days to 40 hours. for the 1st I got 48/32=3/2 but i'm not to sure about the other one, it would be less than 2 days?

*October 20, 2013*

**penn foster**

No what's the answer

*October 15, 2013*

**BUSINESS 101**

B D

*October 15, 2013*

**math**

if the coefficient of x,x*x,x*x*x in the binomial expansion (1/2+x) whole raise to 2n are in AP. Show that 2nsquare- 9n +7 is equal to zero?

*October 12, 2013*

**statistics**

Use the normal dist to approx the desired prob. Find the prob of getting at most 30 fives in 200 tosses of a fair 6 sided die

*October 4, 2013*

**Creative Expression and Play**

Appropraite materials and equipment for outdoor play should contain:

*September 11, 2013*

**statistics**

Can you please tell me how to solve for the following? Pedro took an exam in a class in which the mean was 64 with a standard deviation of 6. If his z score was +3, what was his exam score? A students commute to school is normally distributed with a mean of 31 min and a ...

*July 28, 2013*

**stats **

I am having a bit of trouble with the top half of the questions. I have an answer below for questions 5-10, is there anyway you can check those answers and help me with the rest I am having trouble with. Thank you. 1. The area to the right of 1.93 under Student's t-curve ...

*July 22, 2013*

**stats**

I am having a bit of trouble with some of the questions. Some of the ones I put below have an answer, is there anyway you can check the answer and help me with the rest I am having trouble with. Your sociology teacher claims that 60 percent of American males are married. You ...

*July 22, 2013*

**statistics**

A physician routinely makes physical examinations of children. She is concerned that a three-year-old girl has a height of only 87.8 cm. Heights of three-year-old girls have a mean of 97.5 cm and a standard deviation of 6.9 cm (based on data from the National Health and ...

*July 13, 2013*

**foreign language**

How do you use the appropriate forms of the adjectives simpatico, dificil, aleman, and guapo?

*July 5, 2013*

**bmath**

71,214.36

*July 1, 2013*

**essex county**

and it is a rope not robe

*June 27, 2013*

**essex county**

just dont know how to start

*June 27, 2013*

**Math **

Maximize P=3x+2y subject to 6x+3y<=24 3x+6y=<30 X,Y>=10

*June 18, 2013*

**Math**

A company manufactirung snowboards has fixed costs of $200 per day and total cost of $3800 per day at a daily output of 20 boards. (A( Assuming that the total cost per day, C(x), is linearly related to the taotal out per dau,x, write an equation for the xost function (B) The ...

*June 18, 2013*