Wednesday
November 26, 2014

# Posts by Angie

Total # Posts: 1,198

Algebra
Find a mathematical model representing the statement. (Determine the constant of proportionality.) v varies jointly as p and q and inversely as the square of s. (v = 2.1 when p = 4.2, q = 5.4 and s = 2.4.) v =
November 25, 2014

What are the dimensions of a rectangular tract of land if its perimeter is 70 kilometers and its area is 300 square kilometers? km (smaller value) akm (larger value)
November 24, 2014

Algebra
ã2x -4 = ã7x + 9 Don't' have a clue. I tried squaring both sides to get rid of the square root but it just isn't working.
November 14, 2014

Dine
Men spend an average of 29 minutes per day on weekends and holidays exercising and playing sports. They spend an average of 23 minutes per day reading. A random sample of 25 men resulted in a mean of 35 minutes exercising with a standard deviation of 6.9 minutes and an average...
November 10, 2014

math
Wanda is shopping for a pet carrier for her cats one small Carrie I can hold 240 ounces her cat weighs 12 pounds can the carrier hold the cat
November 5, 2014

probability
WaterPlant is 121 miles from the store. Assuming an average speed of 65 miles per hour, how many hours will it take the truck to drive from the bottling plant to the store? Round to one decimal place. How long is that in minutes? Show all your calculations.
October 28, 2014

?
list at least 10 things that have energy and label what type of energy it is. EX:car diving by =kinetic energy;car parked=potential energy
October 8, 2014

quanta tive skills and reasoning
In a class of 250 students it was found that 140 took math 85 took psychology and 65 took both math and psychology how many students in the class took math or psychology?
September 27, 2014

Physics
A car is traveling at 72 km/hr. The driver begins to apply the brakes and the begins to slow with a constant acceleration (a). After the brakes are applied, the car stops in a distance of 100 m. What is the acceleration? My teacher gave the class a list of formulas but didn&#...
September 23, 2014

Physics
the acceleration due to gravity on the moon is 1/6 that on earth. For a projectile with an initial velocity of 15m/s upward what would be the maximum height and total time of flight on the moon and on the earth?
September 18, 2014

math
One side of triangle is one-third the longest side. The third side is 13 feet less than the longest side. The perimeter is 106. Find all three sides.
September 17, 2014

State sales tax is based on retail price. An item that sells for \$115.99 has a sales tax of \$8.12. Find a mathematical model that gives the amount of sales tax y in terms of the retail price x. (Round the coefficient to two decimal places.) y = Use the model to find the sales ...
September 10, 2014

Math
September 9, 2014

Math!
you're welcome
September 9, 2014

Math!
7a-11b yes its D
September 9, 2014

thank you :)
September 9, 2014

The simple interest on an investment is directly proportional to the amount of the investment. By investing \$4250 in a certain bond issue, you obtained an interest payment of \$106.25 after 1 year. Find a mathematical model that gives the interest I for this bond issue after 1 ...
September 9, 2014

Find the zeros (if any) of the rational function. (If there are no zeros, enter NONE.) g(x) = (x^3-64)/(x^2+2) need help solving
September 9, 2014

Write the logarithmic equation in exponential form. ln e = 1 How do I do that?
September 9, 2014

Thank you :)
September 9, 2014

On the day of a child's birth, a deposit of \$30,000 is made in a trust fund that pays 3% interest, compounded continuously. Determine the balance in this account on the child's 30th birthday. (Round your answer to two decimal places.)
September 9, 2014

Algebra
-7x+8y=-8 -2x+6y=-6
September 9, 2014

How many real zeros does y = 3x 4 - 2x 2 + x - 3 have? A. 5 B. 4 C. 3 D. 2 my answer is d
September 8, 2014

please check see if im correct
A cereal manufacturer claims to include 18.7 ounces of cereal in each box, with a standard deviation of 0.2 ounces. A random sample of 25 boxes shows an average of 18.5 ounces. Which of the following statements is correct? A. The claim is likely untrue, according to a z-value ...
September 8, 2014

check and see if correct
Which organ is NOT a part of the digestive system? A. Esophagus B. Gallbladder C. Kidneys D. Mouth My answer would be mouth
September 7, 2014

Math plz check if correct
In multiplication, if one term is negative and one term is positive, the result will always be ______. A. equal to zero B. negative C. inverted D. positive my answer is A
August 31, 2014

Math check see if i;m coorrect
In division, a problem includes a divisor, a dividend, and a(n) ______. A. product B. sum C. expression D. quotient My answer is b
August 31, 2014

Thank you so very much Damon!!!! :-)
August 28, 2014

A small fast-food restaurant invests \$4,000 to produce a new food item that will sell for \$4.59. Each item can be produced for \$2.19. (a) How many items must be sold to break even? (Round your answer to the nearest whole number.) items (b) How many items must be sold to make a...
August 28, 2014

HISTORY
I believe the answer is A
August 28, 2014

A small software company invests \$30,000 to produce a software package that will sell for \$64.95. Each unit can be produced for \$42.25. How many units must be sold to break even? How many units must be sold to make a profit of \$100,000?
August 28, 2014

History
I think its the ancient Egyptian, but it depends on your choice for the this question.
August 28, 2014

College Algebra
Use the position equation given below, where s represents the height of the object (in feet), v0 represents the initial velocity of the object (in feet per second), s0 represents the initial height of the object (in feet), and t represents the time (in seconds), as the model ...
August 27, 2014

Statustics
A survey found that women’s heights are normally distributed with mean 63.4 in and standard deviation 2.5 in. A branch of the military requires women’s heights to be between 58 in and 80 in. a. Find the percentage of women meeting the height requirement. Are many ...
August 4, 2014

english
Identify the verbal in this sentence as infinitive, gerund or participle. Wearing protective clothing is a good precaution against infection.
July 27, 2014

Chemistry
Suppose 26.0g of sodium bromide is dissolved in 150mL of a 0.60M aqueous solution of silver nitrate. Calculate the final molarity of bromide anion in the solution. You can assume the volume of the solution doesn't change when the sodium bromide is dissolved in it.
July 26, 2014

eng III
Analyze the sentence to select the adverb clause, subordinating conjunction, and the word(s) modified in the appropriate boxes below. He responds whenever he is called.
July 16, 2014

english
Analyze the sentence to select the adverb clause, subordinating conjunction, and the word(s) modified in the appropriate boxes below. Please get to bed early since you have a test tomorrow.
July 16, 2014

math
Sandra has a collection of beads. Of the beads, 45% are silver. She has 108 silver beads. How many beads are in her collection?
June 21, 2014

math
helen shared some syrup with rani in the ratio of 5 : 3. helen got 1 l(italic) of it how many milliliters of the syrup did rani get?
June 20, 2014

College Algebra
i dont know
April 21, 2014

math
if sound travels 6770 feet in 6.4 seconds. how far will it travel in one minute
April 19, 2014

question
Quick question, If I post a question on here would you be able to delete it?
April 15, 2014

Algebra
Thank you
April 12, 2014

Algebra
If Sam takes 6 hours to paint a house, and Pat takes 12 hours to paint the same house; how long with it take the 2 men to paint the same house together? What is the correct formulary?
April 12, 2014

math
Sandra makes a pizza she puts mushrooms on 2/8 of the pizza she adds green peppers to 5/8 of the pizza which topping covers more of the pizza
March 25, 2014

calculus
Skeletal remains had lost 70% of the C-14 they originally contained. Determine the approximate age of the bones. (Assume the half life of carbon-14 is 5730 years. Round your answer to the nearest whole number.)
March 2, 2014

algebra
Your monthly commission as an appliance sales person is represented by the equation, S = 50x+450, where 50 is the rate paid for each appliance sold, x is the number of appliances sold, 450 is the base pay per month, and S is the salary. Complete the following table to ...
February 12, 2014

Physics
A penny is dropped from a 50 m high bridge, how fast was the penny moving when it hit the water?
January 28, 2014

Physics
A penny is dropped from a 50 m high bridge, how fast was the penny moving when it hit the water?
January 28, 2014

biology
In which stage of mitosis does DNA replication occur?
January 28, 2014

earth
What causes sedimentation in the ocean?
January 28, 2014

physics
is this right?if 5.0m/s^2=6.0m/s-0/1.2s a=fn/m 5.0m/s=15.0N/3kg show that the 5.0m/s^2 acceleration can result from a net force of 15N exerted on a 3.ok cart
January 20, 2014

pre-algebra
December 21, 2013

math
estimate each unit rate.1) 295 words in 6 minutes.find each unit price.then tell which has the lower unit rate. 2) \$3.99 for 25fl.oz of detergent or \$6.99 for 90 fl.oz of detergent.3) \$d/12 hr= \$96/8 hr 4. One molecule of nitrogen reacting 3 molecules of hydrogen makes 2 ...
December 21, 2013

math
write each ratio in simplest form..1) 2 yards to 15 feet.2) in a survey,9 out of 10 doctors recommended a certain medicine.if 80 doctors were surveyed,how many doctors recommended the medicine? 3)find each unit rate.travel 804 miles in 16 hours.4) the mass of a diamond is 1.76...
December 21, 2013

Physics
Analyzing Roller Coaster Performance Using Conservation of Mechanical Energy At the beginning of a roller coaster ride, the car is lifted to the top of a large hill and released. The speed of the car at the top of the hill is small, so we will assume it to be zero. The car ...
November 30, 2013

Physics
Mars has a moon (Phobos) with an orbital period of 7.67 hours and an orbital radius of 9.4x106 m. Use Kepler’s 3rdLaw to estimate the mass of Mars.
November 30, 2013

Physics
Two blocks are attached together with a piece of string. Block #1 (3 kg) slides along a rough horizontal surface and block #2 (2 kg) hangs off the end of the surface. If the blocks accelerate at 2.5 m/s2 in the directions shown, determine the tension in the string and the ...
November 30, 2013

Physics
A regulation baseball has mass 145 g and diameter 22.86 cm. Will this ball float or sink in water? Vsphere = € 4 3π⋅r3
November 30, 2013

Physics
A 200g block of copper at 90o C is dropped into 400g of water at 27o C contained in a 300g glass beaker at 27o C. What is the final equilibrium temperature of the mixture? cCu = 0.0924 cal/g°C cglass = 0.2 cal/g°C cwater = 1 cal/g°C
November 30, 2013

Physics
Gas is confined in a tank at a pressure of 10.0 atm and a temperature of 15o C. If half of the gas is withdrawn and the temperature is raised to 65o C, what is the new pressure of the gas?
November 30, 2013

Physics
A 1-liter aluminum container at 20o C is filled with 0.975 liters of mercury at 20o C. If both the container and the mercury are heated, at what final temperature will the mercury completely fill the container? (Hint: this is a volume expansion problem) αAl = 24 × ...
November 30, 2013

Physics
A pair of eyeglass frames made of plastic with a coefficient of linear expansion of 1.30x10-4 (Cº ) -1 have circular lens holes of diameter 4.40 cm at room temp (20º C). To what final temperature must the frames be heated in order to insert lenses 4.42 cm in diameter...
November 30, 2013

Physics
A 10 kg penguin slips down a rough incline of 35o . If the coefficient of kinetic friction between the penguin and the incline is 0.15, determine the penguin’s acceleration.
November 20, 2013

Physics
A ball on the end of a string is cleverly revolved at a uniform rate in a vertical circle of radius 85.0cm. If its speed is 4.15 m/s and its mass is 0.300 kg, calculate the tension in the string when the ball is (a) at the top of its path, and (b) at the bottom of its path.
November 20, 2013

Physics
A Jet plane traveling 1800 km/h (500 m/s) pulls out of a dive by moving in an arc of radius 6.00 km. What is the plane’s acceleration in g’s?
November 20, 2013

Physics
Mars has a moon (Phobos) with an orbital period of 7.67 hours and an orbital radius of 9.4x106 m. Use Kepler’s 3rdLaw to estimate the mass of Mars.
November 20, 2013

Physics
A 25 g bullet is fired from a rifle with a barrel of length 65 cm. The bullet starts from rest at one end of the barrel and experiences an average force of 1200 N due to the expanding gases as it moves down the length of the barrel. a) Calculate the work done on the bullet by ...
November 20, 2013

Physics
Two blocks are attached together with a piece of string. Block #1 (3 kg) slides along a rough horizontal surface and block #2 (2 kg) hangs off the end of the surface. If the blocks accelerate at 2.5 m/s2 in the directions shown, determine the tension in the string and the ...
November 20, 2013

History
What is the significance of the black stone and where is it located? How did the caravan trade benefit the Arabian peninsula in the fifth and sixth centuries and why did the trade routes change during this time?
November 13, 2013

History
Identify the changes in the arabian peninsula during the 600's
November 13, 2013

Language Arts
Can you explain this quote for me???? "weathered many bitter nights"
November 13, 2013

Language Arts
wait sorry I mean Why is he referred to as "the strategist Odysseus'? To this the strategist Odysseus answered: “My lady goddess, here is no cause for anger. My quiet Penelope-how well I know- Would seem a shade before your majesty, Death and old age being ...
November 13, 2013

Language Arts
To this the strategist Odysseus answered: Why is he referred to as "the strategist Odysseus'? “My lady goddess, here is no cause for anger. My quiet Penelope-how well I know- Would seem a shade before your majesty, Death and old age being unknown to you, While ...
November 13, 2013

Language Arts
I got it thank you very much :)
November 13, 2013

Language Arts
What does this comparison tell you? A gull patrolling between the wave crests of the desolate sea will dip to catch a fish, and douse his wings; no higher above the whitecaps Hermes flew
November 13, 2013

True or False. 1. Raiding one’s enemies was known in the Quran as the “struggle in the way of God” or jihad. 2.The courage of the Arab soldiers was enhanced by the fact that they had superior weapons to most of their enemies. 3. Mu’awiyah moved the capital ...
November 11, 2013

History
True or False? The general mu'awiyah was known for one outstanding trait: he used more force than necessary whether it was needed or not
November 11, 2013

Science
the gravitational force between two objects is proportional to the blank of the distance blank
November 5, 2013

Science
Fill in the blank- The gravitational force between two objects is proportional to the ______ of the masses of the objects.
October 30, 2013

Language Arts
Think of some examples of how you change the following elements of a conversation in a formal situation. Vocabulary Pronunciation Abbreviated words Idioms Also give two examples of different situations that require you to use the formal language.
October 26, 2013

physics
A novice golfer on the green takes three strokes to sink the ball. The successive displacements of the ball are d1 = 4.06 m to the north, d2 = 2.05 m northeast, and d3 = 1.15 m at 30.0° west of south (see the figure). Starting at the same initial point, an expert golfer ...
September 22, 2013

Finance
On August 1, 2005 you invested \$3,000 into a mutual fund. You then invested \$1,000 into that same mutual fund on the first day of August for each of the years 2006 through 2013. You averaged a 7.25% annual rate of return on your investment in this mutual fund. What is the ...
September 20, 2013

science
An astronaut of mass 120 kg recedes from her spacecraft by activating a small propulsion unit attached to her back. The force generated by a spurt is 30 N. Show that her acceleration is 0.25 m/s2.
September 15, 2013

Paleolithic People
Describe the types of shelter and housing that were used by Paleolithic peoples
August 28, 2013

World History Honors
Thank you so much!
August 28, 2013

Military History
Two questions: 1. By 1864, only two Confederate ports remained open and actively participating in blockage running. One of these was: Mobile Charleston Savannah Boston 2. What percentage of Union army enlistments came from the draft? 9 13 15 10
August 28, 2013

Military History
Who did Lincoln promote to overall Western commander on March 11, 1862? A. Henry Halleck B. William Halsey C. Percy Hobart D. Nathan Forrest
August 28, 2013

Chemistry
The reaction b/t H2 and O2 yield water vapor and has a change of heat =-484kJ.Ho much PV work is done and what is the value of the change of E in kJ for the reaction of 0.50 mol of H2 with 0.25 mol of O2 amd atmospheric pressure of 1.00 , the volume change is -5.61.
June 30, 2013

math
the average middle distance runner at a local high school runs the mile in 4.5 minutes with a standard deviation of 0.3 minute the percentage of a runners that will run the mile in less than 4 min is %
June 30, 2013

algebra
An object 4.2 feet tall casts a shadow that is 12.6 feet long. How long in feet would the shadow be for an object which is 15.3 feet tall?
June 9, 2013

Grammar
I'm going to high school next year so I wouldn't have her as a teacher again in the future.
June 5, 2013

Grammar
Thank you so much! :)
June 5, 2013

Grammar
I want to give my Algebra teacher a letter to show how much her effort on helping me learn made me appreciate her and I just want to know if this sounds okay. Dear (my teacher's name), I just wanted to take some time to express how much I enjoyed being in your class this ...
June 5, 2013

math
Triangles ABC and DEF are similar. The similarity ratio of to is , AB = 40, BC = 25, and AC = 35. What is the perimeter of ?
May 22, 2013

accounting
Customer relations are usually part of:
April 19, 2013

Global History
How did geography both help and hinder the peoples of Africa?
April 17, 2013

Physical Science
The amount of air above you decreases or increases if you increase or decrease in elevation. The less air above you, the less air pressure pushing down on you.
April 17, 2013

Math
I don't get this question! Please help. A pizza is divided into 8 slices. Diana eats 1/16 of the pizza in 5 minutes. At this rate, how many slices can she eat in one hour?
April 3, 2013

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