Monday

July 25, 2016
Total # Posts: 2,156

**physics**

Ball A with a mass of 0.500 kg is moving east at a velocity of 0.800 m/s. It strikes ball B, also of mass 0.500 kg, which is stationary. Ball A glances off B at an angle of 40.0° north of its original path. Ball B is pushed along a path perpendicular to the final path of ...
*July 23, 2016*

**physics**

A 16.0-g bullet is shot into a wooden block at rest with mass 4550 g on a frictionless surface. The bullet strikes and is lodged in the block, causing is to slide at a speed of 1.20 m/s. Find the speed of the bullet (in m/s) before striking the block.
*July 23, 2016*

**Math**

Mapping Notation for y=2log _3(-3x +9)-2 log_3 mean log base 3
*July 14, 2016*

**Math Please Help ASAP**

The function 𝑄(𝑥) has been transformed from the function 𝑓(𝑥) = 𝑥^4 . The mapping rule for the function can be written as (2𝑥 + 𝒄, 4𝑦 + 𝒃). If the coordinate(1/2 ,1/16) on the function 𝑓(𝑥...
*July 11, 2016*

**Math**

Describe the end behaviour of 0.5(x-2\)^2\(x+1)(x-5)^3
*July 11, 2016*

**Math**

A polynomial function with a degree of 6 has the zeros of 𝑥 = 2 (order 2), 𝑥 = −1 (order 1) and 𝑥 = 5 (order 3). Write a general formula for a family of functions that share the same properties as this function. Please HELP!
*July 11, 2016*

**MATH Function Transformation**

for function if the a value 1/2 is it a stretch of 1/2 or a compression of 2. Or is both correct!
*July 7, 2016*

**math**

Thanks!
*July 7, 2016*

**math**

Explain two ways that you can solve for R in the following division statement. Then, use one of your methods to find R. x^3+4x^2-3x=(x-1)(x^2+5x+2)+R could you divide x^3+4x^2-3x by (x-1) to get the quotion of (x^2+5x+2)+ the remainder which would be r? Also what would be ...
*July 7, 2016*

**Advanced Function**

Garfield has designed a rectangular storage unit to hold large factory equipment. His scale model has dimensions 1 m by 2 m by 4 m. In order to maintain the scale he needs to increase each dimension by the same amount. By what amount should he increase each dimension to ...
*July 7, 2016*

**Math**

If a isosceles triangle has one side with 52 degrees and another with 5x-6 are the other sides
*June 16, 2016*

**Stats**

34% of voters favorable view. Thirty likely voters chosen at random. What does n=, p=, and on average what is the number of voters expect to have a favorable view?
*June 13, 2016*

**Physics**

A basketball was kicked 20.0 m above horizontal with an initial velocity of 120.0 m/s at an angle of 35.0˚ above the horizontal. (a) How long is the rocket in air before falling? (b) What is the horizontal range for the rocket? (c) With what speed does the rocket hit the ...
*June 12, 2016*

**Advanced Algebra**

The average weight of a medium size egg is found to be 3.2 oz, with a standard deviation of 0.13 oz. What is the heaviest egg (to 2 decimal places) that we are 95% confident is still medium size?
*June 6, 2016*

**Laguange Arts**

Can Someone just give me a answer i need help im dont get the question!
*May 26, 2016*

**Laguange Arts**

an instruction in the text of a play, especially one indicating the movement, position, or tone of an actor, or the sound effects and lighting. That whats google says!
*May 26, 2016*

**Laguange Arts**

I know but should i write i dont know what to write.
*May 26, 2016*

**Laguange Arts**

I dont know what to right.
*May 26, 2016*

**Laguange Arts**

I know what to do i just dont know how to right something on it?
*May 26, 2016*

**Laguange Arts**

8. Stage directions are one element of a drama. In a paragraph, define and provide an example of stage directions from A Surprising Point of View. Then analyze the stage directions. Explain how these directions contribute to your understanding of A Surprising Point of View. ...
*May 26, 2016*

**Math**

You have wood donated from Home Depot to build a booth to sell the shirts and hats from, but you need to provide dimensions for the panels. They are 4 feet high and come in a variety of lengths. The space you have to build your triangular stand is 5 ft by 12 ft rectangle in ...
*May 25, 2016*

**Math**

Create a container to store extra shirts and hats. Some shirts and hats get sold and no one comes to pick them up. They must be stored for next year. What size cylinder do I need to hold a volume of 800 in3 of shirts and hats(The cylinder must hold that volume), how do you ...
*May 25, 2016*

**Math**

You have wood donated from Home Depot to build a booth to sell the shirts and hats from, but you need to provide dimensions for the panels. They are 4 feet high and come in a variety of lengths. The space you have to build your triangular stand is a 5ft by 12ft rectangle in ...
*May 25, 2016*

**Math**

What size cylinder do I need to hold a volume of 800 in3 of shirts and hats(The cylinder must hold that volume)
*May 25, 2016*

**Physics **

A DIVERGING lens has a focal length of 35 cm. (a) Find the image distance when an object is placed 48 cm from the lens. (b) Is the image real or virtual magnified or reduced?
*May 22, 2016*

**Physics **

A DIVERGING lens has a focal length of 35 cm. (a) Find the image distance when an object is placed 48 cm from the lens. (b) Is the image real or virtual magnified or reduced? I am very lost and don't even know where to start
*May 22, 2016*

**Algebra**

Thank you
*May 20, 2016*

**Algebra**

Please check my answer The ordered pairs (0,1), (1, 6),(2, 36), (3, 216), and (4, 1,296) represent a function. What is a rule that represents this function? A y=x^6*** B y=6x C y=x+6 D y=6x
*May 20, 2016*

**Chemistry **

Pure acetic acid, known as glacial acetic acid, is a liquid with a density of 1.049 g/mL at 25°C. Calculate the molarity of a solution of acetic acid made by dissolving 35.00 mL of glacial acetic acid at 25°C in enough water to make 400.0 mL of solution.
*May 16, 2016*

**Math**

If a camera and a lock weigh 330 grams together. Also the same camera and a crown together weighs 670 grams. Also the weight of a crown and a lock is 470 grams. What is the weight of each individual object?
*May 15, 2016*

**Algebra 1**

Thank you in advance for your kind help! How much fresh water should be mixed to a 30% salt water solution, to obtain 90 gallons of a 23% salt water solution?
*May 4, 2016*

**Algebra 1**

Thank you in advance for your kind help! How much fresh water should be mixed to a 30% salt water solution, to obtain 90 gallons of a 23% salt water solution?
*May 4, 2016*

**Math**

To the nearest tenth, find the area of a circle whose radius is 6 meters. Use 3.14 for pi.
*April 27, 2016*

**Math**

Use a sum formula to show that cos(2u)=2sinucosu
*April 18, 2016*

**Math**

Hello, could someone help me set up the equation for this word problem? A sharpshooter intends to hit a target at a distance of 3000ft with a gun that has a muzzle velocity of 1200 ft per second. Neglecting air resistance, determine the gun's minimum angle of elevation ...
*April 18, 2016*

**Trigonometry**

Hello, could someone help me set up the equation for this word problem? A sharpshooter intends to hit a target at a distance of 3000ft with a gun that has a muzzle velocity of 1200 ft per second. Neglecting air resistance, determine the gun's minimum angle of elevation ...
*April 18, 2016*

**PHYSICS work on a ramp!!!**

How much work is it to push a box (mass 190 kg) up an incline (angle 16 degrees with the horizontal) that is 8.3 meters long, if the coefficient of kinetic friction between the box and the incline is 0.6? My doubt is how do I find force?
*April 10, 2016*

**math**

If it goes up 3 feet then slides down 2 feet, then it goes up 1 foot a day, so it would take 30 days to get up to the top
*April 10, 2016*

**Math**

A computer was purchased at a sale at a discount of 15%. If $688.50 was paid for it, and this price includes 8% sales tax, then what was the original price without tax or discount?
*April 7, 2016*

**Algebra**

Write an algebraic expression for the quantity. Let x represent the unknown value. Seven times a quantity decreased by thirteen
*April 7, 2016*

**Calculus**

how to make (x-3)^(2n)/4^(n) converge
*April 2, 2016*

**Biomechanics **

Jane is a 45 kg cyclist. If her bike weighs 100 N and she landed with her bike on the floor at a vertical reaction force of 890 N, what was her vertical acceleration during landing?
*March 21, 2016*

**Math**

Another problem I need to confirm: A ship is 60 miles west and 91 miles south of the harbor. a) What bearing should the ship take to sail directly to the harbor? (Round answer to nearest tenth of degree.) b) What is the direct distance to the harbor? A) Tan(theta) = 60/91 ...
*March 21, 2016*

**Math**

Could someone check my work? A 200-foot cliff drops vertically into the ocean. The angle of elevation from a ship to the top of the cliff is 22.3 degrees. How far offshore, to the nearest foot, is the ship? Tan(22.3) = 200ft/x xtan(22.3)=200ft x=200/tan(22.3) x=487.65 Answer: ...
*March 21, 2016*

**Math**

Sue bought a new dress while on holiday in the USA. The sales tax was 8%. If she was paid $6.40 tax, and if she was charged 15% duty on the original purchase (before tax), how much did she pay in all?
*March 20, 2016*

**chemistry**

Rationalize how the addition of the silver nitrate to the Fe/SCN equilibrium system had an effect even though neither Ag nor NO3 appears in the equation shown in the text. Equation in text is FE3+ + SCN- <> [FeSCN]2+. I know that AgSCN is formed and precipitates and that...
*March 18, 2016*

**Chemistry**

what is the maximum amount of NO2 which could be formed from 14.75 g of NO and 1.28 g of O2? Answer in units of mol. i believe its 2 NO + O2 -> 2 NO2 but I'm not sure and i don't know what to do when i tried with stoichiometry i got .4916 but when i got told its the...
*March 17, 2016*

**Math**

Makoto and his friends rolled two fair number cubes 500 times and recorded the sum of the numbers shown on the cubes each time. On 42 of the trials the sum was 10. What will be the probability that the sum of the numbers shown on the cubes is 10 when two fair number cubes are ...
*March 6, 2016*

**criminal justice**

Which of the following occurs when jurors return a verdict which is consistent with their own sense of justice and morality, but inconsistent with the law?
*March 2, 2016*

**Physics**

How do you determine the correct value of angular velocity to use when calculating centripetal force?
*February 28, 2016*

**health **

Need Help ! An instrument called a ________ is used to measure the volume of air that moves into and out of the lungs. A. Hydrometer B. Barometer C. Spirometer D. None of the above I think its D , But Dont Wanna Get Wrong .
*February 23, 2016*

**Physics**

A stone is thrown 60 degrees below the horizontal at 22 ft/sec and 20 meters above the ground. Using the energy equations, determine its velocity when it hits the ground.
*February 21, 2016*

**Math help find x**

Y=x/2-1
*February 11, 2016*

**science**

Wow Ms. Sue is the best right guys. lol Sure
*February 5, 2016*

**Physics (Torque)**

Your hand holds a litter of milk while your arm is bent at the elbow in a 90 degree angle. Estimate the torque caused by the milk on your arm about the elbow joint. Indicate all numbers used in your calculations.
*February 2, 2016*

**Physics**

A jet aircraft rolls onto the end of a runway before accelerating down the runway for takeoff. At the point where the aircraft leaves the ground, it is traveling at 100 m/s. If the aircraft's initial speed when it rolled onto the runway was 10 m/s, and it accelerates for ...
*January 31, 2016*

**Math**

You have a balance of $7500 on your credit card and you make no further charges. If your APR is 12.5% and each month you make only the minimum payment of 5% of your balance, then find a formula for the balance after t monthly payments. A) 7500(0.959896) t B) 7500(0.940104) t C...
*January 30, 2016*

**Math**

In the figure, -> BD is the angle bisector of <ABC. If <ABD= 3x+2 and m<ABC=7x-6, find the degree measure of <CBD A / B--- D \ C
*January 27, 2016*

**Math**

. Question 3 options: Given g(x)=−x/4+4 and f(x)=4x+1/4 , find g^-1(x) , f^-1(x) , (g∘f)^-1(x) and (f^−1∘g^-1)(x) . What can you conclude?
*January 26, 2016*

**Math**

Suppose a ship is sailing at a rate of 35km/h parellel to a straight shoreline. The ship is 10km from shore when it passes a lighthouse at 11am. Question 6 options: a) Let k be the distance between the lighthouse and the ship. Let d be the distance from the ship has travelled ...
*January 24, 2016*

**Math**

I had this question answered before,but I'm totally confused with the answer and need a clearer answer,as I'm totally lost. This is composite functions by the way.
*January 24, 2016*

**math**

Thanks I was using it and getting 1 as the answer but since I have to plug in six more of the "p" fractions with different denominators I thought it didn't make since that for each one would be 1
*January 24, 2016*

**math**

find the sum cos^2(j) + sin^2(j), if j = p/3 -do I have to use a pythagorean identity?
*January 24, 2016*

**Math**

I do not get this question at all,this is composite functions and all my answers to a) to c) is wrong,can someone please help me with this problem :)? Suppose a ship is sailing at a rate of 35km/h parellel to a straight shoreline. The ship is 10km from shore when it passes a ...
*January 24, 2016*

**Math**

I think this is suppose to be composite function
*January 23, 2016*

**Chemisty**

how many grams of propane would be burned with 80.0g of oxygen?
*January 21, 2016*

**Math**

Determine the composite function of F(x)= sin x and g(x)=x
*January 21, 2016*

**Math**

Determine the composite function of F(x)=2^x and g(x)=3-x
*January 21, 2016*

**Chemistry**

A concentration of PCl5(g), 4,0 mol/L, it appears that the proceeding PCl5(g) => PCl3(g) + Cl2(g) is achieved with a degree of balance of 20%. In these conditions, calculate the value of chemical equilibrium
*January 20, 2016*

**i dont know how to solve this**

Which number is a solution to the inequality 3x − 2 > 10? A 2 B 3 C 4 D 5
*January 19, 2016*

**i dont know how to solve this**

A taxi charges $2.25 for a ride, plus $0.25 for every 1/4 mile. Which inequality represents how many miles, x, a person could travel with $8.00? A $2.25 + $0.25x ≥ $8.00 B $2.25 + $0.25x ≤ $8.00 C $2.25 + $1.00x ≥ $8.00 D $2.25 + $1.00x ≤ $8.00
*January 19, 2016*

**i dont know how to solve this**

What is the value of x in the equation 6 + 2/3x=9 ?
*January 19, 2016*

**how to set up this problem**

Caleb has a piece of wood that is 156 inches long. He wants to cut the wood into 2 3/4 -foot sections. How many whole 2 3/4 -foot sections can Caleb cut? A 57 B 56 C 5 D 4
*January 19, 2016*

**math please explain**

Apples cost $1.62 per pound, and bananas cost $0.48 per pound. What is the total cost for 2 1/2 pounds of apples and 1 1/3 pounds of bananas? A $4.69 B $4.55 C $3.77 D $3.36
*January 19, 2016*

**Math**

would 450 nickels be greater than 25 quarters
*January 17, 2016*

**Math**

Since I am converting 450 nickels to 25 quarters would 450 nickels be greater or less than 25 quarters
*January 17, 2016*

**Math**

So would it be: 450*0.5 and 25*0.25
*January 17, 2016*

**Math**

I am stuck on this. I am converting 450 nickels to 25 quarters to see which is greater. Can you explain or show me how to do this.?
*January 17, 2016*

**math**

Assume an 18 month CD purchased for $7000 pays an APR of 4% compounded monthly. What is the APY? 2 decimal places
*January 16, 2016*

**math**

Assume an 18 month CD purchased for $7000 pays an APR of 7% compounded monthly. What is the APY? APY = ___% Round the answer to two decimal places
*January 16, 2016*

**math**

Assume an 18 month CD purchased for $7000 pays an APR of 7% compounded monthly. What is the APY? APY = ___% Round the answer to two decimal places The previous answer was not correct so they changed the question.
*January 16, 2016*

**math**

Sorry... Assume an 18 month CD purchased for $7000 pays an APR of 7% compounded monthly. What is the APY? APY = ___% Round the answer to two decimal places
*January 16, 2016*

**math**

Can you please help me I've tried over 30 times on this problem please show me the formula that I need to come up with the answer... Assume and 18 months Ed purchased for 7000 days and APR of 5% compounded monthly. What is the APY? They want me to round the answer to two ...
*January 16, 2016*

**math**

That answer was wrong...so I reposted the new question and made sure I typed it right which was my fault.The new problem is now at 7%. They want the APY %
*January 16, 2016*

**math**

Can you please help me I've tried over 30 times on this problem please show me the formula that I need to come up with the answer... Assume and 18 months Ed purchased for 7000 days and APR of 5% compounded monthly. What is the APY? They want me to round the answer to two ...
*January 16, 2016*

**math**

Assume a 30 month CD purchased for 2000 pay simple interest at an annual rate of 5.5%. How much total interest does it turn what is the balance at maturity. They want to know the total interest and the balance at maturity and they want us to give our answer to two decimal places
*January 16, 2016*

**math**

Assume an 18-month CD purchased for $7000 pays an APR of 7% compounded monthly. What is the APY? (Fill in the blank below and round your answer to 2 decimal places.) APY = %
*January 15, 2016*

**math**

i know but it was wrong so it change %
*January 15, 2016*

**math**

Assume an 18-month CD purchased for $7000 pays an APR of 5% compounded monthly. What is the APY?
*January 15, 2016*

**math**

Assume an 18-month CD purchased for $7000 pays an APR of 3% compounded monthly. What is the APY?
*January 15, 2016*

**Maths, Function image sets**

Need a bit of help. Trying to find the image sets of two recipricol functions. The first g(x)=1/(x-2)+5 (x not equal to 2) The second g(x)=1/(x-2)+5 (x>2) Now its quite easy to draw/sketch the graph but ive not really dealt with image sets of recipricol f functions before ...
*January 14, 2016*

**English **

I have to write a rational for my English class, however I'm stuck on what to write next. The question is: What are the obstacles we face in life, and how they help us become who we are? We are supposed to both relate to real life, and a text that we read in class. I chose...
*January 14, 2016*

**Math**

1. -9p - 17 = 10 2. x over 3 - 10 = 12 3. x over 4 + 10 = 14
*January 13, 2016*

**math**

A population of 240 birds increases at a rate of 16% annually. Jemel writes an exponential function of the form f(x) =abx to represent the number of birds after x years. Which values should she use for a and b?
*January 5, 2016*

**Math**

Lila graphed the points -2 and 2 on a number line. What does the distance between these two points represent?
*January 3, 2016*

**Math**

Im wondering for this question if I'm right and going toward the right direction. Last week there was an earthquake that measured as a magnitude of 3.2 on the Richter scale. Today you hear on the radio that there was a second earthquake that was 27 times more intense than ...
*January 2, 2016*

**Math **

Rewrite the following exponential functions as logarithmic functions, and the logarithmic functions as exponential functions: f(x)=(7/8)^x b) f(x)=log12x c) f(x)=log5/9x
*January 1, 2016*

**Math**

Rewrite the following exponential functions as logarithmic functions, and the logarithmic functions as exponential functions a) f(x)=(7/8)^x b) f(x)=log12x c) f(x)=log5/9x
*December 31, 2015*

**economics**

Suppose three neighbors must vote on installation of a traffic light that costs $210. All three will share the cost of the light – that is, each person will contribute $70 to the installation. Leona values the light at $50; Lionel values the light at $50; and Theo, who ...
*December 11, 2015*

**chemistry**

You have 310. mL of a 5.75×10-5 M Pb(NO3)2 solution. How many moles of NaCl must be added to precipitate a solid? The Ksp of PbCl2 is 1.6×10-5. I'm not sure where to go after I make the ICE table
*December 2, 2015*