# billy

Newest questions and responses by billy-
## physics

A football is kicked at ground level with a speed of 18.0 m/s at an angle of 38.0 degrees to the horizontal. How much does it hit the ground?

*asked on October 26, 2018* -
## math

By what percent will a fraction change if its numerator is decreased by 50% and its denominator is decreased by 25%?

*asked on October 23, 2018* -
## Chemistry

What volume, in milliliters, of a stock solution of 2.55 M NaOH would you have to use to prepare 1.00 L of a 0.500 M NaOH?

*asked on October 17, 2018* -
## Calculus

Find the linearization L(x) of the function f(x)=e^−2x at x=0. Please help

*asked on October 9, 2018* -
## science

scientists ______ a hypothesis by doing one or more of these steps: designing a ________, making a ________, gathering and _________ evidence, __________ data, or recording observations.

*asked on October 5, 2018* -
## Algebra

Can someone please help on this portfolio? I've been stuck on it for several days and i've only got task 1 I chose Cape Coral for the population that increased, and Fort Lauderdale as the one that decreased. Task 2 a. Do some research and find a city that

*asked on October 1, 2018* -
## Math

Do the data in the table represent a direct variation or an inverse variation? Write an equation to model the data in the table. x 1 3 5 10 y 4 12 20 40 a. direct variation; y=4x b. direct variation; xy=1/4 c. inverse variation; xy=4 d. inverse variation;

*asked on May 22, 2018* -
## Spanish 2

Which direct object pronoun fits best? Estudiante: Hola profesora. No entiendo. Ud. '1. ' ayuda por favor? Profesora: Sí. ¿Cómo '2. ' puedo ayudar? Tú eres muy trabajador. Opcion = me, te, lo, la, nos, os, los, las Mi responder: 1. me 2. te

*asked on March 26, 2018* -
## math

A team of scientists found that there were 4 oak trees for every 10 pine trees. How many oak trees were there if they counted 36 more pine than oak?

*asked on February 24, 2018* -
## math

team of scientists found that there were 4 oak trees for every 10 pine trees. How many oak trees were there if they counted 36 more pine than oak?

*asked on February 20, 2018* -
## ap calc

Each of the following parts relates to finding the area underneath the curve , from x = 1 to x = 3. D. Set up, but do not solve, the Riemann Sum which expresses the exact area underneath the curve.

*asked on December 23, 2017* -
## ap calc

Consider { a sin x + b, if x ≤ 2π { x^2 - πx + 2, if x > 2π A.) Find the values of a and b such that g(x) is a differentiable function. B.) Write the equation of the tangent line to g(x) at x = 2π. C.) Use the tangent line equation from Part B to

*asked on December 22, 2017* -
## Macroeconomics

What will be the impact of Trumpâ€™s tax proposal? Describe the impact of the proposed tax cuts on the US economy for the next few years. Will there be any decreases in Government spending if the GOP tax proposals pass. Explain. Does Trumpâ€™s

*asked on December 18, 2017* -
## language arts

I need 2 advantages of being space and 2 disadvantages of being in space. Plz help me.

*asked on December 7, 2017* -
## History

What does man love more than life? Fear more than death or mortal strife. What poor have, the rich require, and what contented men desire, what the miser spends and the spendthrift saves and all men carry to their graves?

*asked on October 11, 2017* -
## Science

Which of the following is not needed to make a model of the water cycle? A. An energy source B. Water C. A closed container D. A drain D is correct

*asked on September 14, 2017* -
## Algebra 2

A single die is rolled. find the probability of rolling an even number or a number less than 5, what is the probability Please help me with this question!!

*asked on April 25, 2017* -
## programming

Develop a class diagram for a Message class for a cell phone company. Include generalizations for child classes TextMessage, VideoMessage, and VoiceMessage. The Message class has attributes of account number and price. In addition it has the methods

*asked on April 17, 2017* -
## science

A 13,500 kg jet is moved with a thrust of 5,224,700 Newtons west. what is the acceleration of the jet?

*asked on March 9, 2017* -
## Maths

If a farmer has 90 animals in a field.4/9 are sheep,1/3 are cows,1/10 are horses and the rest are pigs.How many pigs are there?

*asked on February 20, 2017* -
## MATHS

Divide the x^4 +2x^3 + 3x + 4 by x^2 +x, finding the quotient and the remainder. Show that x^2 + 2x + 8 is an irreducible polynomial.

*asked on January 19, 2017* -
## History

What is one way the legislative branch is kept from becoming to powerful? A. It is divided into two lawmaking bodies, a House and Senate, which check and balance one another.** B. It is unable to finalize any laws. C. Its members meet only twice a decade.

*asked on January 13, 2017* -
## Physics

Assume the sleigh and horse pulling it are on a level, horizontal surface. Given: mass of sleigh 475 kg / force of horse pulling sleigh 1.5×10^5 / coef. of kinetic friction .15 / coef. of static friction .20 a.) What is the normal force of the sleigh and

*asked on December 12, 2016* -
## Physics

A shopper exerts a force on a cart of 64N at an angle of 30° below the horizontal. a.) How much force pushes the cart in a forward direction? b.) How much force pushes the cart against the floor?

*asked on December 9, 2016* -
## Physics

An ice skater with a mass of 60.0kg is moving at 20.0 m/s coasts to a halt in 2.00×10^2m on a smooth ice surface. What is the coefficient of friction between the ice and the skates?

*asked on December 9, 2016* -
## Algebra

Divide by synthetic division (x^4-15x^2 +38x-60)/(x-3) Can someone please help with this.

*asked on December 2, 2016* -
## Math-PreCalc

Find the sum u+v. |u|=47, |v|=30, θ=90° The magnitude of the resultant vector is _____.(Round to the nearest tenth). Find the angle that the resultant makes with u. The angle is ____°. (Round to the nearest degree).

*asked on November 3, 2016* -
## Math

3/4 of the students in a school were girls and the rest were boys. 2/3 of the girls and 1/2 of the boys attended the school carnival. How many students attended the carnival of 330 did attend.

*asked on November 2, 2016* -
## Marco Eco

Suppose you borrow $100 of principal that must be repaid at the end of two years, along with interest of 4 percent per year. If the annual inflation rate turns out to be 8 percent, (a) What is the real rate of interest on the loan? (b) What is the real

*asked on October 18, 2016* -
## Marbles

A bag contains 10 green marbles, 9 white marbles, 7 red marbles. If one marble is drawn from the bag then replaced, what is the probability of drawing a green marble then a red marble?

*asked on October 8, 2016* -
## algebra

An open box is to be constructed from a rectangular sheet of tin 5 meters wide by cutting 1 square meter from each corner and folding up the sides. The volume of the box is to be 18 cubic meters. What is the length of the tin rectangle?

*asked on September 25, 2016* -
## Science

An empty 1.5 litre Pepsi bottle is filled with uncooked rice. A marble is put into the bottle and a pencil used to push it down until it is buried in the rice. The bottle is capped and shook hard back and forth. The bottle is then placed on the table. What

*asked on September 12, 2016* -
## Math

You bought a new car for $26,500 in 2005, and the value of the car depreciates by $900 each year. Find a formula for V, the value of the car, in terms of t, the number of years since 2005.

*asked on September 9, 2016* -
## math

Maria spent 2/5 of her money on a book and 1/6 of the remainder on a P.E. uniform. If the book costs P105 more than the P.E. uniform, how much money did she have at first?

*asked on August 12, 2016* -
## math

if 20 students are present out of 50 studentsin class. how many percent of absent?

*asked on July 4, 2016* -
## health

without this system in the body you would get really sick because toxins and waste would build up. 1. cardiovascular 2. excretory 3.integumentary 4. muscular

*asked on May 2, 2016* -
## math

Blair opens his investment account with $500. He loses $15.45 the first month, and then gains $35.68 the second month. If his net gain after 3 months is $40, how much money did he gain in the 3rd month? *

*asked on April 5, 2016* -
## math

What is the net gain or loss in yardage for a football team that gains 6 yards, loses 12 yards and then gains back 15 yards?

*asked on April 5, 2016* -
## civics

how did the new jersey plan contribute to the creation of the us constitutions? a-it called for equal representation for all states b-it called for the 3/5 compromise c-it called for the creation of a bicameral congress d-it called for the end of slave

*asked on March 22, 2016* -
## math

a plane intersects a square pyramid perpendicular to its base but not through a vertex.The plane forms a cross section what is the shape of the cross section a)trapezoid b)triangle c)square d)rectangle

*asked on March 9, 2016* -
## trig

half angle formula to find exact value cos 112.5 degree

*asked on March 9, 2016* -
## trig

sin^4x

*asked on March 9, 2016* -
## trig

sin 2x-cot x=

*asked on March 9, 2016* -
## Math

to determine the number of trout in a lake a conservationist catches 144 trout, tags them and throws them back into the lake. later 28 trout are caught; 14 of them are tagged. how many trout would the conservationist expect to be in the lake?

*asked on March 7, 2016* -
## Physics

Suppose that 4.7 moles of a monatomic ideal gas (atomic mass = 8.5 × 10^-27 kg) are heated from 300K to 500K at a constant volume of 0.47 m^3. It may help you to recall that CVCV = 12.47 J/K/mole and CPCP = 20.79 J/K/mole for a monatomic ideal gas, and

*asked on February 9, 2016* -
## Physics

A tank holds 135 moles of argon gas (atomic mass = 6.633521 × 10^-26 kg) at a pressure of 101300 Pa and a temperature of 302K. Recall that the number of gas molecules is equal to Avagadros number (6.022 × 10^23) times the number of moles of the gas 1)

*asked on February 9, 2016* -
## Physics

A cylinder with a movable piston contains 14 moles of a monatomic ideal gas at a pressure of 2.26 × 105 Pa. The gas is initially at a temperature of 300 K. An electric heater adds 52600 J of energy into the gas while the piston moves in such a way that

*asked on February 9, 2016* -
## Economics

Do you think a nation’s output should be distributed according to income or according to some other standard (such as basic human need)?

*asked on January 26, 2016* -
## Math

A cake recipe calls for 2 cups of flour. You want to make 2/5 of the recipe. How many cups of flour should you use?

*asked on January 24, 2016* -
## science

An equation has carbon dioxide and water as its products, what type of reaction has taken place?

*asked on January 9, 2016* -
## science

what are three of the populations in an ecosystem near you

*asked on December 18, 2015* -
## Math

A person has $50,000 to invest. As the person's financial consultant, you recommend that the money be invested in Treasury bills that yield 4%. Treasury bonds that yield 8%, and corporate bonds that yield 12%. The person wants to have an annual income of

*asked on December 10, 2015* -
## Calculus AB

If f(x) is continuous on the interval [4, 7], how many of the following statements are true? A. f(x) has a maximum value on [4, 7]. B. f(x) has a minimum value on [4, 7]. C. f(7) > f(4) D. lim f(x) = f(6) ᵡ¨6

*asked on December 8, 2015* -
## Finance

Currently you own a portfolio comprised of the following three securities. How much of the riskiest security should you sell and replace with risk-free securities if you want your portfolio beta to equal 90 percent of the market beta? Stock Value/Beta A

*asked on December 7, 2015* -
## Finance

Currently you own a portfolio comprised of the following three securities. How much of the riskiest security should you sell and replace with risk-free securities if you want your portfolio beta to equal 90 percent of the market beta? Stock Value/Beta A

*asked on December 7, 2015* -
## Chemistry

A chemist prepared a solution by dissolving 52.0 g of hydrated sodium carbonate in water to a total volume of 5.00 dm3. The concentration was determined to be 0.0366 M. Determine the formula of the hydrated sodium carbonate.

*asked on November 18, 2015* -
## Feedom Similes

I cant think of any similies about freedom can you give me some ideas

*asked on November 11, 2015* -
## low math

A section of a boardwalk is made using 15 boards. Each board is 9 1/4 inches wide. The total width of the section is 144 inches. The spacing between each board is equal. What is the width of the spacing between each board? Write your answer in simplest

*asked on November 5, 2015* -
## Math word problem

Please, i need help. How much greater than -11.6 is -5.43

*asked on October 26, 2015* -
## Math

What is the greatest six digit even number that matches all of the clues The ten thousands digit is twice the tens digit The hundred thousands digit is more than six The thousands digit can be divided by the ones digit No digit is used more than once

*asked on September 29, 2015* -
## math

I need help with this problem: 33 1/3 of what number is 4 5/6

*asked on September 27, 2015* -
## math

how to do -48= 2q and 13 n/10

*asked on August 31, 2015* -
## Mathematics

Mrs. Sheela purchased a sewing machine and made a down payment of Rs.1000. She agreed to pay Rs .60 per month thereafter for one year. If the interest Raye was 7% compounded monthly, what was the cash price of the machine?

*asked on August 16, 2015* -
## math

line of symmetry

*asked on May 5, 2015* -
## physics

a block weighs 200 N and is being held against a door. The coefficient of static friction between the door and the block is 0.470. What is the minimum force applied? Please show how you got it

*asked on April 20, 2015* -
## chemistry

A 50.0 mL sample of 0.50 M HBr is titrated with 0.25 M KOH. What is the pH after the addition of 60.0 mL of KOH? A) 4.1 B) 13.4 C) 1.7 D) 2.0 E) 7.7 I'm confused on the process of solving this problem. My work so far: .050L X .50 mol/1L= .025 mol HBR .060L

*asked on April 3, 2015* -
## Chemistry

A volume of 80.0mL of H2O is initially at room temperature (22.00 ∘C). A chilled steel rod at 2.00 ∘C is placed in the water. If the final temperature of the system is 21.20 ∘C , what is the mass of the steel bar? Use the following values: specific

*asked on February 26, 2015* -
## Math

A drawer contains 20 black socks and 20 white socks. If the light is off and you reach into the draw to get your socks, what is the minimum number of socks you must pull out in order to be sure that you have a matching pair?

*asked on February 15, 2015* -
## math

Mabel is installing a square pool in her backyard and wants a circular fence to enclose the pool to create 4 grassy areas around the pool as show in the figure. If the pool is located at the coordinates (1, 5), (5, 8), (4, 1), and (8, 4), what is the

*asked on January 4, 2015* -
## Chemistry

1.) Can you explain to me how Faraday's Constant works in electrolytic cells? (We did a lab experiment on copper wires and sulfuric acid, collecting H2 gas.) I'm not sure how to answer the question. 2.) Does copper conduct more electricity than platinum?

*asked on December 10, 2014* -
## MATH

Janet dreams to go on vacation in three years. How much should she invest now so that she will have $15,000 by that time if the account earns 1 3/8% compounded quarterly?

*asked on November 24, 2014* -
## Math

You invest $5,000 at 3% monthly for 15 years. How much interest will you earn?

*asked on November 24, 2014* -
## Math

Tom Invested $7,000 at 6.5% interest compounded monthly. How much will be in this account after 18 months?

*asked on November 24, 2014* -
## Physics

A billiard ball traveling at 3.00 m/s collides perfectly elastically with an identical billiard ball initially at rest on the level table. The initially moving billiard ball deflects 30.0° from its original direction. What is the speed of the initially

*asked on November 13, 2014* -
## Chemistry

A reaction uses 4.5 grams of oxygen and an excess of nitrogen. How many grams of dinitrogen pentoxide are produced?

*asked on October 8, 2014* -
## math

a 20 metre length of cloth is cut into two pieces in the ratio 1:9. how long is each piece?

*asked on October 7, 2014* -
## chemistry

a.) Write the balanced complete combustion reaction for ethane (C2H6), producing CO2 and water vapour. Make sure to include phases. Also, make sure that the stoichiometric coefficients are whole numbers and are not fractions. b.) What is the enthalpy of

*asked on October 3, 2014* -
## Stat

Of 84 adults selected randomly from one town, 62 have health insurance. Find a 90% confidence interval for the true proportion of all adults in the town who have health insurance. Please help mr solve.

*asked on October 1, 2014* -
## Stat

Thirty randomly selected students took the calculus final. If the sample mean was 89 and the standard deviation was 6.2, construct a 99% confidence interval of the mean score of all students. Assume that the population has a normal distribution. what

*asked on September 30, 2014* -
## Language Arts Answer check PLEASE

1) What can you infer from this sentence near the start of "The Story Teller"? Most of the aunt's remarks seemed to begin with "Don't," and nearly all of the children's remarks began with "Why" A) It is a long trip to Templecombe B)the aunt is extremely

*asked on September 12, 2014* -
## ART HELP PLEASE

Its a picture Called a Portrait of a Woman by Jan Mytens and the question is This piece of art is most successful if the person critiquing considers A)creativity *** B)technical skill C) Use of bright Colors D)ability to capture emotion I think A but am

*asked on September 9, 2014* -
## Science Check PLEASE

put ** by the ones I thought correct Which of the following statements best describes the characteristics of a hypothesis, one of the steps of the scientific method? a)It is a possible answer to a scientific question *** b) It is a scientific inquiry that

*asked on September 2, 2014* -
## Science Check answers please

I put ** by the ones I thought correct Which of the following statements best describes the characteristics of a hypothesis, one of the steps of the scientific method? a)It is a possible answer to a scientific question *** b) It is a scientific inquiry

*asked on September 2, 2014* -
## English Check my answers please

1. In “Raymond’s Run,” which detail supports the prediction that Squeaky will not let Gretchen win the race? (1 point) I put * marks by ones I thought Squeaky is insulted when Mr. Pearson suggests she give someone else “a break” this year.

*asked on September 2, 2014* -
## chemistry

Gallium is a metal with a wide variety of uses. Some of its applications include computer memory chips, light emitting diodes and lasers. Radioactive isotopes of gallium are used to image the human body and locate tumors. Naturally occurring gallium

*asked on August 30, 2014* -
## english

how many adjectives are in this sentence? two large oaks covered your evergreens.

*asked on July 2, 2014* -
## Science

What is oxygen made of

*asked on June 19, 2014* -
## Biology

How much heat is needed to raise the temperature of 20g of copper from 20 degrees celcius to 40 degrees celcius? (The specific heat of copper is 385J/Kg degrees celcius)

*asked on June 5, 2014* -
## finance

A bond that has a $ 1,000 par value (face value) and a contract or coupon interest rate of 10.5%. The bonds have a current market value of$ 1,124 and will mature in 10 years. The firm's marginal tax rate is 34%

*asked on May 8, 2014* -
## finance

a bond that has a $ 1,000 par value ((face value)) and a coupon interest rate of 10.1% the bonds have a current market value of $1,127 and will mature in 10 years the firm's marginal tax rate is 34% the cost of capital from this debt is %

*asked on May 6, 2014* -
## consumer math

A person selecting a bank will consider how convenient it is, how safe it is, and how secure their return is true false

*asked on May 1, 2014* -
## math

The table below shows the results of an experiment in which a number cube was tossed 20 times. Outcome of toss: 1 2 3 4 5 6 Number of times Outcome Occurred: 4 1 5 5 2 3 (table reads: outcome of toss 1=4number of times,2=1,3=5,4=5,5=2,and6=3) Based on

*asked on April 25, 2014* -
## physics

Mary is standing at a place such that she makes an angle of 42° to the right of the normal of a mirror. Where should Mary's mom stand so that she can best see Mary's reflection in the mirror?

*asked on April 9, 2014* -
## math

Jim paid $ 5.55 for 1 notepad and 7 pencils. Anne paid $ 12.28 for 3 notepads and 2 pencils. How much does each notepad cost? Show all work. Thanks

*asked on April 7, 2014* -
## math

you have a 2.5 od pipe can you get the same flow from two 1.and a quarter od pipe

*asked on March 29, 2014* -
## physics

What is the pressure that is exerted by a box tjat has a dimension of 12cm long and 14cm wide and has a force of gravity on the box of 40N?

*asked on March 26, 2014* -
## chemistry

How do I determine how many moles of KMnO4 it takes to neutralize C2O4-?

*asked on March 25, 2014* -
## math

simplifies (8+12)5/6-5A+11

*asked on March 19, 2014* -
## Algebra

Solve using FOIL (y-2) (3y3-5y+7)

*asked on March 18, 2014* -
## algebra

(4a2+9b5) - (-2a2-6b5)

*asked on March 18, 2014*