Thursday

October 8, 2015
Total # Posts: 85,705

**physics**

what acceleration is imported to a football when the player kicked it with a force of 25 N mass of football 0.40kg
*June 22, 2015*

**mathematics**

9/3=?
*June 22, 2015*

**math-urgent**

so this is for a diff eq class. how did you use differential equations to come up with that height equation?
*June 21, 2015*

**math-urgent**

A ball with a mass 0.15kg is thrown upward with an initial velocity 20m/s from the roof of a building 30m high. Neglect air resistance. Find the max height above the ground that the ball reaches. Assuming the ball misses the building find the time that it hits the ground
*June 21, 2015*

**calculus**

The base of a solid is the circle x2 + y2 = 9. Cross sections of the solid perpendicular to the x-axis are equilateral triangles. What is the volume, in cubic units, of the solid?
*June 21, 2015*

**physics**

A baseball is thrown from the roof of a 24.0-m-tall building with an initial velocity of magnitude 10.0 m/s and directed at an angle of 53.1° above the horizontal.
*June 21, 2015*

**Economics **

Pretend you are a superintendent of a school district and you have to hire new teachers and cut a few substitute teachers. If the number of substitute teachers you release is greater than the number of new teachers you plan to hire, explain to the school board how you plan to ...
*June 20, 2015*

**Math**

Thank you
*June 20, 2015*

**Math**

yes Mrs. Sue
*June 20, 2015*

**Math**

16= (x+2) x 4/2
*June 20, 2015*

**algebra homework**

For one performance of a play, 416 tickets were sold. Reserved seat tickets sold for $14 each, and general admission tickets sold for $8 each. Receipts from the sale of the tickets totaled $4840. Find the number of general admission tickets sold.
*June 20, 2015*

**homework**

The Buckingham Fountain in Chicago shoots water from a nozzle at the base of the fountain. The height h, in feet, of the water above the ground t seconds after it leaves the nozzle is given by the function h(t) = –16t2 + 90t + 15. What is the maximum height of the water? ...
*June 20, 2015*

**Homework**

Find the equation of the line that contains the point (0, 4) and is parallel to the line 3x – 4y = 8.
*June 20, 2015*

**Homework**

For one performance of a play, 416 tickets were sold. Reserved seat tickets sold for $14 each, and general admission tickets sold for $8 each. Receipts from the sale of the tickets totaled $4840. Find the number of general admission tickets sold.
*June 20, 2015*

**Finance**

Assume a 30-month CD purchased for pays simple interest at an annual rate of 5.5%. 1. How much total interest does it earn? 2. What is the balance at maturity? (2 decimal places)
*June 20, 2015*

**homewrok**

Two hundred trout were tagged and then released into a pond. Later 60 trout were caught and examined, and 8 of the 60 trout were found to have tags. Estimate the number of trout in the pond.
*June 20, 2015*

**algebra**

1.) (3x + 4)(x - 2) a.) 3x^2 - 2x - 8 b.) x - 8 c.) 3x^2 + 2x +8 d.) 3x^2 + 2x +8 2.) (2y - 1)(4y - 3) a.) -2y + 3 b.) 8y^2 -10y - 3 c.) 8y^2 -10y + 3 d.) 8y^2 - 2y + 3
*June 20, 2015*

**Economics**

d a b c e
*June 19, 2015*

**Economics**

a c b d e
*June 19, 2015*

**Spanish **

Hi, would someone be able to proofread this for me, please??? No tenía ningún problema en el mundo cuando era más joven. Viajaba por lo menos una vez al mes. Volaba de Nuevo México Y Arizona mucho. Soy originalmente de Arizona, pero la vivía ...
*June 19, 2015*

**life orientation**

draw up any five interview question you will use to evaluate the understanding of service delivery protest
*June 19, 2015*

**math**

can someone elxplai to me how to solve this differential equation. dy/dx= (x^2+3y^2)/2xy
*June 18, 2015*

**Chemistry**

PLS HELP ME(1)Write a balanced equation in each case dilute hydrochloric reacts with[i]ZnCO3[ii]CuCO3 (2)Discuss how hydrocarbons contribute to the formation of ozone in the atmosphere.I'M CONFUSED I NEED HELP!
*June 18, 2015*

**Statistics**

A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective? Cholesterol Decreased No Cholesterol Decrease Total Treatment 38 ...
*June 18, 2015*

**Statistics**

A researcher conducts a test on the effectiveness of a cholesterol treatment on 114 total subjects. Assuming the tails of distributions are normal distribution, is there evidence that the treatment is effective? What is the Null and alternative hypothesis.
*June 18, 2015*

**physics**

A student of weight 810 N was sent to another planet called Nerdland. If Nerdland has a mass that is 4 X the mass of the earth and a radius that is 1/2 the radius of the earth, what would be the mass in kg of the student when on Nerdland? what would be the weight in N of the ...
*June 18, 2015*

**psy410**

parkinson's disease huntingtons disease and alzheimers disease are all types of major neurocognitive disorder
*June 18, 2015*

**Ethics**

Traits of character that dispose a person to act in a moral fashion are typically referred to as:
*June 18, 2015*

**Math**

The cost of a video game is $29.95 and sales tax is 6%. About how much will the game cost, including tax?
*June 17, 2015*

**science**

iujgg
*June 17, 2015*

**Math**

Kristine made 4.9% of her 3-point shots last basketball season. She attempted forty 3-point shots in all. About how many points did she score from just 3-point shots?
*June 17, 2015*

**Math**

113
*June 17, 2015*

**Math**

Of the 597 students at Duzine Elementary School, 19% have a computer at home. About how many students have a computer at home?
*June 17, 2015*

**Math**

There are 1,500 animals living at the zoo.15% of the animals have feathers. How many animals at the zoo have feathers?
*June 17, 2015*

**CAPM**

choose two other companies,look up their beta and report the names of these companies and their betas. suppose you invest one third of your money in each of the stocks of these companies. what will the beta portfolio be? given the data in (b), what will the expected rate of ...
*June 17, 2015*

**school**

If 30 % of students in middle school 15 % of those in music are in choir what % of the whole school is in choir
*June 17, 2015*

**logical statements-urgent**

I have to come up with a logical statement when making a truth table that has these conditions: The statement is always false if both P and Q are true. Otherwise, the statement is true if Q is true but R is not true. so far I have ~(P&Q) which makes it false if both P and Q ...
*June 17, 2015*

**math**

2/9
*June 17, 2015*

**English 1**

What did the author of “The Cold Equations” most likely want you to believe? What examples from the story make you think this? Explain your answer in three to five sentences.
*June 17, 2015*

**math help please **

Sue Stitch buys a sewing machine. The price, including tax, is $575.00. She finances the sewing machine over 24 months after making a $25 down payment. The true annual interest rate is 15%. What are Sue's monthly payments (principal plus interest)? To the nearest penny, c...
*June 17, 2015*

**algebra**

Can you explain this? An intercept of the quadratic graph is the same as the root of quadratic equation. You have to find out the discriminant. If the discriminant is positive, you have two roots which equals two intercepts. If it is zero, there is one root which equals one ...
*June 17, 2015*

**Calculus**

Ahhhhh! Okay awesome! Thank you! Makes so much sense!
*June 17, 2015*

**Calculus**

Suppose that the temperature of the environment is 2 degrees and the initial temperature of the object is 25 degrees. After 10 minutes the temperature of the object is observed to be 17 degrees. what is the temperature of the object after 30 minutes? after how many minutes is ...
*June 17, 2015*

**Calculus**

Okay, so I worked out 17 = T(10) = 2 + 23e ^10k 15/23 = e^10k k= 1/10ln(15/23) k = - 0.043 But when I do this equation 17 = T(30) = 2 + 23e^30k 15/23 = e^30k k = 1/30ln(15/23) k = -0.142 But the answer is apparently 8.38? Can someone please help. I think I'm getting too ...
*June 17, 2015*

**allied school faiz pur campus**

determine the time of evaporation of 250ml of water on heating
*June 17, 2015*

**math help please**

Carol Byrd gets a student rate of $30.00 a month. There is a $250 deductible; but no coinsurance payment. She recently received treatment for a covered condition. The bill was $2,300.00. Carol's insurance company provided payment of 80% of the bill less the deductible. ...
*June 17, 2015*

**Economics**

I don't have a textbook since I'm taking this class online but I have a powerpoint and I think is government is it right?
*June 16, 2015*

**Economics **

In a command economy, who issues "commands" regarding the three basic economic choices? Question 1 options: Business leaders Government Consumers All of the above
*June 16, 2015*

**Government **

Which of the following is NOT considered an economic goal?
*June 16, 2015*

**Math**

At a community picnic, the following liquids were combined to make a punch: 3 gallons of water 1.5 gallons of cranberry juice 1 pint of strawberry juice 1 cup of grape juice 3 quarts of pomegranate juice How much punch was made in all for the community picnic? Give your answer...
*June 16, 2015*

**Spanish**

The answer on 12. was se caia
*June 16, 2015*

**Spanish**

Thank you so much for your help.
*June 16, 2015*

**Spanish**

11. Wake up early! A. ¡Acuéstate temprano! B. ¡Despiértese temprano! C. ¡Tú te despiertas temprano! D. ¡Me despierto temprano! E. unable to answer Answer: B 12. Cuando Luís montaba a caballo, siempre _____________ al suelo. A...
*June 16, 2015*

**Spanish **

I was hoping you could proofread this for me please? No tenía ningún problema en el mundo cuando era más joven. Viajaba por lo menos una vez al mes. Volaba de Nuevo México Y Arizona mucho. Soy originalmente de Arizona, pero la vivía mayor&...
*June 16, 2015*

**ENVM**

Review the three most significant adverse environmental impacts you identified in Week Four for the facility you are working with in your Capstone project and suggest actions that the facility might take to eliminate or mitigate them. Restrict your answer to actions that the ...
*June 16, 2015*

**physics**

identify tie force fields from the following : density field, temperatuse field, gravitational field, magnetic field, electrostatic field, electric field
*June 16, 2015*

**furthe math**

find the gradent of the lind parallel to the line whose gradent is -3
*June 16, 2015*

**Life Orintation**

protest restriction
*June 16, 2015*

**mathematics**

Find I. Choose the correct answer. Amount Financed (m) = $1,400 Number of Payments per year (y) = 12 Number of Payments (n) = 24 Total Interest (c) = $200.50
*June 16, 2015*

**mathematics**

Jane Investor purchased a $10,000 bond at 90. The annual interest is 5%. What was the cost of the bond? What was the annual interest? What is the yield (to the nearest tenth of a percent)?
*June 16, 2015*

**mathematics**

Oaktree Transportation Corporation has 75,000 shares of stock outstanding. What would the dividend per share of stock be from a dividend declaration of $102,750? How many shares of stock does Jody Nichols hold if her share of the dividend is $20.55?
*June 16, 2015*

**mathematics**

Lily Adams purchased a $1,000 bond at 70. The bond pays 4% What was the cost of the bond? What was the annual interest? What is the yield (to the nearest tenth of a percent)? (please only post of you know answer or at least will tell me how to get the answers on my own/ tell ...
*June 16, 2015*

**english**

anguage that is important to the story and exact dialogue that is important to the message or tone makes: sharing the book difficult for the teacher. for a poor choice to share with young children. a story better when acted out with puppets instead of read. a story better when...
*June 16, 2015*

**MATH**

A theater puts on a play and it's overhead is $750. It will charge adult's $5 per ticket and students $3 per ticket. The theater holds 200 people. What is the maximum profit? (How many adult tickets will be sold and how many student tickets will be sold?)
*June 16, 2015*

**math**

the billions period has three different even digits whose sum is 12. each of the other places is occupied by 8. what is the number?
*June 16, 2015*

**science**

20c
*June 16, 2015*

**geography**

suva
*June 16, 2015*

**math**

in a booster club, 1/8 of the members are men. How many male members are in the club.
*June 15, 2015*

**math 4**

For the spinner above, the probability of landing on black is 1/2, and the probability of landing on red is 1/3, Suppose it is spun three times. What is the probability it will land on black all three times? ansewrs
*June 15, 2015*

**calculus**

Find the distance, in feet, a particle travels in its first 4 seconds of travel, if it moves according to the velocity equation v(t)= −t2 + 4 (in feet/sec).
*June 15, 2015*

**calculus**

A girls throws a tennis ball straight into the air with a velocity of 64 feet/sec. If acceleration due to gravity is −32 ft/sec2, how many seconds after it leaves the girl's hand will it take the ball to reach its highest point? Assume the position at time t = 0 is 0...
*June 15, 2015*

**calc**

The base of a solid in the region bounded by the graphs of y = e^-x y = 0, and x = 0, and x = 1. Cross sections of the solid perpendicular to the x-axis are semicircles. What is the volume, in cubic units, of the solid?
*June 15, 2015*

**Chem**

A mixture of 5.00 g of sodium carbonate, Na2CO3 and sodium hydrogen carbonate, NaHCO3 is heated. The loss in mass is 0.31 g. Sodium carbonate does not decompose on heating. Calculate the percentage by mass of sodium carbonate in the mixture.
*June 14, 2015*

**geometry**

What is the surface area of a cylindrical ring if its outside diameter is 16 mm and its inside diameter is 10 mm? Round your answer to the nearest whole number. A. 92 mm^2 B. 118 mm^2 C. 123 mm^2 D. 385 mm^2 I thought it was C. 123 mm^2. However that is not correct, I got it ...
*June 14, 2015*

**math**

using Rolles theorem to see if it can be applied to f. If so, find all numbers c such that f`(c)=0 f(x)=sin(x)+cos(x) interval [0,2pi]
*June 14, 2015*

**calc**

Find the velocity, v(t), for an object moving along the x-axis if the acceleration, a(t), is a(t) = cos(t) − sin(t) and v(0) = 3.
*June 14, 2015*

**Government **

Can what happened with Hurricane Katrina be prevented from happening again or is it an inherent consequence of shared power?
*June 14, 2015*

**Social Studies**

The Jamestown Colony
*June 14, 2015*

**Social Studies**

Why did most major northeastern cities in the United States develop along the coast? Need help A.S.A.P
*June 14, 2015*

**mth 125**

Janet Jones borrowed $3,000 on 90-day 12 percent note. Janet paid $250 toward the note on day 35. On day 80 she paid an additional $400. Using the U.S. Rule, her adjusted balance after her first payment is
*June 14, 2015*

**geometry**

One advantage of the prismoidal formula is that you can use it to a) calculate precise volumes of all prismoids b)calculate both volume and surface area c)determine volumes of figures that are not prismoids d)estimate the volume of solids that are combinations of other solids ...
*June 14, 2015*

**Social Studies**

THXS
*June 14, 2015*

**Social Studies**

Need help A.S.A.P
*June 14, 2015*

**Social Studies**

what was the cause of the velvet revolution?
*June 14, 2015*

**geometry**

Observer on ground is x meters from base of launch pad of rocket, which is at same level as observer. Rocket takes off vertically, observer sees tip at angle q degrees from the horizontal. How far above the ground is the tip of the rocket at that instant? Assume the ground is ...
*June 14, 2015*

**Physical sciences**

Which liquid has the lowest boiling point and why?
*June 14, 2015*

**calc**

Find the number a such that the line x = a divides the region bounded by the curves x = y^2 − 1 and the y-axis into 2 regions with equal area. Give your answer correct to 3 decimal places.
*June 13, 2015*

**Pre-Calculus **

Can someone please help me with this question? Show that x=a cos t+h, y=b sin t+k; 0<t<2pi (greater than and EQUAL to) are parametric equations of an ellipse with center (h,k) and axes of lengths 2a and 2b. Thank you so much!
*June 13, 2015*

**Business Studies**

What are some examples of Australian small-medium enterprises?
*June 13, 2015*

**sTATISTICS**

Give examples of each of the aforementioned events.
*June 12, 2015*

**math**

9a^-1/4
*June 12, 2015*

**math**

what is the answer to this question? I just want to double check my answer that I wrote on a test? (3a)^1/2 x (3a)^-1/2
*June 12, 2015*

**Physics - Dynamics**

Odd wording. You give the friction force (mu*mg) then ask about an applied "friction" force. Applied frorce+ friction= ma applied force+mg*mu=ma applied force=m(-6-9.8*.85) now for stopping distance: vf^2=vi^2+2 a d 0=25^2+2(-6.0)(d) solve for d.
*June 12, 2015*

**unique national comprehensive college**

If it has passed its elastic limit, it cannot be predicted.
*June 12, 2015*

**biogloy**

What does it take to be a living organism? Living things share 8 characteristics that are listed in Chapter 1 of your textbook on page 19. Think of an organism or cell in which all 8 characteristics are not obvious. For example, coral looks like it does not move, red blood ...
*June 11, 2015*