Saturday
July 4, 2015

Posts by sandra


Total # Posts: 994

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

Introduction to Algebra MAT 221
Factor each polynomial completely. Show all work. Show each step. x^4 - x^3.
June 6, 2013

Physics
A 50 ohm resistor is connected in series with a 0.2 H inductor, a 40 microFarad capacitor, and an AC Generator yielding 120 v (RMS) at 60 Hz. Find A) the inductive reactance b) the capacitive reactance and c) the total reactance, the impedance Z, and the current in Circuit, I.
May 10, 2013

Chemistry Question
Calculate the ∆G˚ for the oxidation of nickel in the following balanced reaction. 2[RhCl6]3-(aq)+ 3Ni a 2Rh(s) + 3NiCl2(aq) + 6Cl-(aq) E˚ for RhCl6 is 0.5V E˚ for Ni(s) is -0.25V
May 10, 2013

College Chemistry 104
Oh dear, I am so stupid! Thank you. I can't believe that I didn't even realize that.
May 10, 2013

math
not sure how to solve this problem, Mrs. Smith put $5,000 into a certificate of deposit at the bank that paid 6% interest per year. if the bank paid simple interest on this money, how much would Mrs. Smith earn in a year
April 30, 2013

math
not sure how to solve this problem, Mrs. Smith put $5,000 into a certificate of deposit at the bank that paid 6% interest per year. if the bank paid simple interest on this money, how much would Mrs. Smith earn in a year
April 30, 2013

Algebra
Predict value of x in table In 0,2,8,10,18 Out 5,11,29,x,59
April 25, 2013

Math
Paula invested into two accounts; one pays 5% simple interest and the other 6% simple interest. She invested $3000 more in the account paying 6% than in the other account 5%. At the the end of the first year, Paula total return was 730. How much did she invest in each account?
April 2, 2013

douglass
which is a typical behavior of a successful interviewee?
March 22, 2013

LAN
1. System A consists of a single ring with 100 stations, one per repeater. System B consists of four 25 stations rings linked by a bridge. If the probability of a link failure is , a repeater failure is , and a bridge failure is , derive an expression for parts (a) to (d). a) ...
March 18, 2013

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