Friday

February 24, 2017
Total # Posts: 2,678

**Math**

For a stat class the mean of the midterm is 75 with a standard deviation of 7. What percentage of students scored between 67 and 83

*December 21, 2015*

**Marketing**

We want to advertise a service that we can use the phrase "Save 40! Either % or $ - You Choose. What would the retail amount of that service be if the amount of savings in dollars were 40 and the percent savings were 40? Assume zero cost. List price and sell price would ...

*December 16, 2015*

**physics**

A golf ball is dropped from rest from a height of 8.30 m. It hits the pavement, then bounces back up, rising just 5.00 m before falling back down again. A boy then catches the ball when it is 1.10 m above the pavement. Ignoring air resistance, calculate the total amount of ...

*December 16, 2015*

**physics**

A model rocket blasts off from the ground, rising straight upward with a constant acceleration that has a magnitude of 90.3 m/s2 for 1.75 seconds, at which point its fuel abruptly runs out. Air resistance has no effect on its flight. What maximum altitude (above the ground) ...

*December 16, 2015*

**physics**

A golfer rides in a golf cart at an average speed of 3.93 m/s for 43.3 s. She then gets out of the cart and starts walking at an average speed of 1.13 m/s. For how long (in seconds) must she walk if her average speed for the entire trip, riding and walking, is 1.99 m/s?

*December 16, 2015*

**physics**

A projectile is launched from and returns to ground level, as the figure shows. There is no air resistance. The horizontal range of the projectile is measured to be R= 166 m, and the horizontal component of the launch velocity is v0x = 26.0 m/s. Find the vertical component v0y...

*December 16, 2015*

**physics**

Traveling at a speed of 16.5 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.590. What is the speed of the automobile after 1.35 s have elapsed? Ignore the effects of...

*December 16, 2015*

**Business Math**

Mortgage lenders base the mortgage interest rate they offer you on your credit rating. This makes it financially critical to maintain a credit score of 700 or higher. How much more interest would you pay on a $193,000 home if you put 20% down and financed the remaining with a ...

*November 29, 2015*

**math**

if 75 widgets are processed in 3.5 hours by 1 person, how long will it take to process 1650 widgets using 9 people.

*November 23, 2015*

**algebra**

No. 2 alyssa has some coins in her purse consisting of pennies, nickels and dimes. She has 2 more nickels than dimes and thrice as many pennies as nickels. If the total is 0.52 dollars how many coins of each kind does she have.

*November 20, 2015*

**Math**

△ = Triangle If △ABC is similar to △DEF, and angle A is 62 degrees, angle B is 13 degrees, find the measure of angle F. (Also I don't want just the answer, I also want to know how to actually do it so I will know how to do this.)

*November 17, 2015*

**Physics 1**

A car manufacturer claims that you can drive its new vehicle across a hill with a 47 degree slope before the vehicle starts to tip. If the vehicle is 2.0 meter wide, how high is its center of gravity?

*November 15, 2015*

**Triganometry**

To measure a stone face carved on the side of a mountain, two sightings 407 feet from the base of the mountain are taken. If the angle of elevation to the bottom of the face is 36 degrees and the angle of elevation to the top of the face is 67 degrees, what is the height of ...

*November 13, 2015*

**MATH HELP**

What types of numbers are these (Natural, Whole, Integer, Rational, Irrational or Real) 1. 0.020220222 2. 4.4/1.1 3. ãã169 4. -3.222 5. 1.3131313... 6. 5.2/.13 7. 5.1011011101110... 8. 6pi/5pi 9. 45pi/9 10. ã-9 Thanks for the help

*November 11, 2015*

**Math**

A bag contains 9 red marbles, 8 white marbles, and 6 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red? What is the probability that exactly two of the marbles are red? The probability that exactly two of ...

*November 11, 2015*

**Math**

A bag contains 9 red marbles, 8 white marbles, and 6 blue marbles. You draw 4 marbles out at random, without replacement. What is the probability that all the marbles are red? 1 The probability that all the marbles are red is...? 2 What is the probability that exactly two of ...

*November 10, 2015*

**5th grade math**

12/3+1/6 =24+1/6 =25/6

*November 9, 2015*

**math**

I'm having trouble setting this one up. The one I'm trying to figure out how to lay out in an equation is Roberto invested some money at 7%, and then invested $5000 more than twice this amount at 9%. His total annual income from the two investments was $3700. How much ...

*November 9, 2015*

**physics**

A force is applied to a 2.9 kg mass and produces 2.7 m/s 2 acceleration. What acceleration would be produced by the same force applied to a 6.2 kg mass? Answer in units of m/s 2 .

*November 8, 2015*

**Math**

were there parenthesis involved in this question?

*November 5, 2015*

**Math**

$3.47

*November 5, 2015*

**Chemistry**

How many grams of ethanol, C2H5OH, can be boiled with 343.0 kJ of heat energy? The molar heat of vaporization of ethanol is 38.6 kJ/mol I'm not sure how I am supposed to set this problem up. Can someone help me, please?

*November 5, 2015*

**math**

the 5 ends up in the ones place (5.781203)

*November 5, 2015*

**Math**

6x2,6x20,and 6x200

*November 2, 2015*

**mars hill. Math**

how do I find the volume of a rectangular box that has a base of 50 in.² and the height of 12 inches

*October 29, 2015*

**physics**

a truck beneath an airplane that is moving 180 km/h at an angle of 47 to the ground. How fast must the truck travelto stay beneath the airplane? Answer in units of km/h.

*October 28, 2015*

**math**

y= 3x+ 9

*October 28, 2015*

**Federal polytechnic, oko**

What force would be required to accelerate an electron mass of 0.009kg from rest to a velocity of 104m/s in 10 seconds.

*October 27, 2015*

**Physics**

A tightrope walker wonders if her rope is safe. Her mass is 60 kg and the length of the rope is about 20 m. The rope will break if its tension exceeds 7500 N. What is the smallest angle at which the rope can bend up from the horizontal on either side of her to avoid breaking? ...

*October 26, 2015*

**Math**

It has four side and all opposite side are parallel and has no right angles

*October 26, 2015*

**BUSINESS MATH**

8 is what percent of 69? (Round to the nearest hundredth percent as needed.

*October 23, 2015*

**Language Arts**

@Ms.Sue can you help me with number 3

*October 23, 2015*

**Language Arts**

Thanks

*October 23, 2015*

**Language Arts**

@Ms.Sue

*October 23, 2015*

**Language Arts**

2. Which of the following best describes the effect of beginning "Always to remember" with a description of the memorial competition? A. this technique keeps the essay from being autobiography or fiction. B. this tactic gives background for the importance of lin'...

*October 23, 2015*

**S.S**

Thanks Ms.Sue (:

*October 23, 2015*

**S.S**

Which of the following would describe how loyalists land was redistributed in Georgia? A. land was given to the indians who helped the patriots. B. land was given in bounty grants to soldiers for their advice. C. a lottery was held to grant land. D. land was confiscated to ...

*October 23, 2015*

**Chemistry**

a) CuO(s) + C(s) => Cu(s) + CO(g) b) 2 NaOH (conc) + Pb(CH3COO)2(aq) = Pb(OH)2(s) + 2 C2H3NaO2(l)

*October 23, 2015*

**Algebra**

What is a Square with p q AR

*October 22, 2015*

**math**

Peter sold watches ($7) and necklaces ($4) at a flea market. Total sales were $300. People bought 3 times as many watches as necklaces. How many of each did Peter sell? What were the total dollar sales of each?

*October 21, 2015*

**chemistry**

Calculate the volume, in milliliters, of a 0.290 M LiOH solution that will completely neutralize each of the following: a. 40.0 mL of a 0.130 M H3PO4 solution b. 24.5 mL of a 0.535 M H2SO4 solution

*October 20, 2015*

**Math**

Of rug has a length that is two times its width. The area of the rug is 8 square feet. What is the length And width of the rug?

*October 20, 2015*

**Civics**

You begin traveling south from Madison,Wisconsin.Which of the following capital cities would you reach first.

*October 19, 2015*

**forensic science**

if handwriting evidence was not yet considered to be considered to be scientific evidence at the time of united states v. starzecypzel,how was it admissible as reliable evidence

*October 11, 2015*

**Finance/370**

How do i deteremine the internal rate of return of a problem. Lets say a company is justt starting and they need an initial outlay of $105,000 and will generate a net cash inflows of 19,000 per year for 9 years. A) If the discount rate is 8 % then what is the NPR? (I ...

*October 11, 2015*

**chemistry**

What is the mass of a liquid that has q volume of 2.5L and a density of 3g/cm cubbed? I got 7.5, but I am unsure if I should have converted L to mL

*September 23, 2015*

**Physics**

You shoot an arrow straight ahead; it leaves your bow moving parallel to the ground. You find it embedded in the ground 50m away from where you shot it. It makes an 82 degree angle with the level ground , reflecting the direction it was traveling at the time it hit. How fast ...

*September 21, 2015*

**Lifespan Development**

What are some theories, models, and constructs that might influence my perspective on facilitating a counseling session/encounter.

*September 20, 2015*

**english**

Most of the time, the ____ struggles against the main character in a story. A) protagonist B) antagonist C) flat character D) round character

*September 18, 2015*

**Math**

are you ok

*September 16, 2015*

**calculus ab**

Use a graphing utility to graph the function and visually estimate the linits h(x)= -x^2 + 4x

*September 11, 2015*

**Physics**

A small turtle moves at a speed of 186 furlongs per fortnight. Find the speed of the turtle in centimeters per second. Note: 1 furlong = 220 yards, 1 yard = .9144 meters, and 1 fortnight = 14 days.

*September 8, 2015*

**history**

Power of pope over church

*September 7, 2015*

**Physics**

An athlete swims from the North end to the South end of a 50.0 Meter pool in 20.0 seconds, and makes the return trip to the starting point in 20.0s A. What is the average velocity for the first half of the swim B.What is the average velocity for the seconds half of the swim C...

*September 2, 2015*

**english**

which are state-of-being verbs in following sentences: "While he was biking this morning, Zach had seen a small accident. A huge SUV ran a red light, and the oncoming sedan was unable to stop. Driving on Portland’s narrow streets was dangerous and expensive. The ...

*September 1, 2015*

**L.O.**

Bad road use has a direct impact on the emotional

*August 20, 2015*

**L.O.**

What are the bad road use on the physical community?

*August 20, 2015*

**MLA citation**

my test results said D was wrong

*July 28, 2015*

**Chemistry**

So my answer should be something around: When writing the name of an ionic compound containing a cation with more than one oxidation state, use the cation name and write the charge of the cation in roman numerals. For example, when writing out FeSO4, it would come out as iron...

*July 7, 2015*

**Chemistry**

Explain the basic format and the steps needed to name an ionic compound composed of a cation that has a possibility of existing in more than one oxidation state. Is this right: There are four prefixes used when naming ionic compounds: per__ate, -ate, -ite, and hypo__ite. ...

*July 7, 2015*

**Business**

10 to 20 answer please

*June 24, 2015*

**fundamentals of law for health information**

what risks does the hospital assume when it takes a case to trial?

*June 11, 2015*

**math**

A textbook search committee is considering 20 books for possible adoption. The committee has decided to select 5 of the 20 for future consideration. In how many ways can it do so?

*May 30, 2015*

**math**

what is 3.4 as a whole number?

*May 18, 2015*

**math**

i had a quiz and that answer wasn't one of them the question was if ryan ran 3.4 miles in 30 minutes at the gym. if he goes to the gym each day for a week and runs the same distance each time how many miles will ryan have run?? the only multiple choice is 23.4 34 3.41

*May 18, 2015*

**math**

thats what i did but it is wrong i got 23.8

*May 18, 2015*

**math**

if a kid ran 3.4 miles in 30 minutes at the gym and he goes everyday for a week at the same distance how many miles will he have run?

*May 18, 2015*

**Chem**

Consider the reaction: A(g)⇌2B(g) Find the equilibrium partial pressures of A and B for each of the different values of Kp. Assume that the initial partial pressure of B in each case is 1.0 atm and that the initial partial pressure of A is 0.0 atm. Make any appropriate ...

*May 15, 2015*

**Chemistry**

From your Dilution Data in the procedure 3 and 4, calculate the initial concentration of Fe3+ (aq) ion for tubes 2-5. 1. Add 5.00ml of 1.00 x10^-3 M KSCN to all tubes. 2. To test tube 1 add 5 ml of 0.200M Fe(NO3)3. 3. Measure 8.00ml of 0.200M Fe(NO3)3 into 25.0ml cylinder. ...

*May 13, 2015*

**Physics**

If the current in a wire of a CD player is 1.10 mA, how long would it take for 3.40 C of charge to pass a point in this wire?physi

*April 30, 2015*

**Physics**

Two electrostatic point charges of +60.0 μC and +57.0 μC exert a repulsive force on each other of 161 N. What is the distance between the two charges? The value of the Coulomb constant is 8.98755 × 109 N · m2/C2. Answer in units of m.

*April 30, 2015*

**5th grade math**

Jeff put small box that is 12 inches long, 8 inches wide, and 4 inches tall inside a box that's 20 inches long, 15 inches wide, and 9 inches high. How much space is left in the larger box?

*April 30, 2015*

**Physics**

An X-ray tube used for cancer therapy oper- ates at 8.8 MV with a beam current of 19 mA striking a metal target. Calculate the power of this beam.

*April 30, 2015*

**Physics**

A net charge of 73 mC passes through the cross-sectional area of a wire in 9 s . What is the current in the wire? The fun- damental charge is 1.602 × 10−19 C.

*April 30, 2015*

**Calculus**

Find the area of the largest rectangle that fits inside a semicircle of radius 10 (one side of the rectangle is along the diameter of the semicircle).

*April 28, 2015*

**Analytical Chemistry**

DrBob222, thank you for the help!

*April 27, 2015*

**Analytical Chemistry**

Any help/advice on answering this question would be a big help! :) The analysis of lead (Pb) in a sample of solder was carried out using atomic absorption spectroscopy as follows. 1.013 g of solder was completely dissolved in a small volume of nitric acid and the solution made...

*April 27, 2015*

**MATH**

Abby, Betty, Cassie, and Dale need to cross the river on a boat. The boat only fits at most two people. If two people go over one must bring it back for the others. Abby takes 1 min., Betty 2 min., Cassie takes 5 min., and Dale takes 10 min.. The time it takes is based on the ...

*April 27, 2015*

**physics**

A body oscillates with simple harmonic motion along the x axis. Its displacement varies with time according to the equation x =5sin πt + π 3( ). The velocity of the body at t = 1.0 s is (-8 m sec )

*April 25, 2015*

**physics**

If the current in a wire of a CD player is 1.10 mA, how long would it take for 3.40 C of charge to pass a point in this wire?

*April 24, 2015*

**physics**

A net charge of 73 mC passes through the cross-sectional area of a wire in 9 s. What is the current in the wire? The fundamental charge is 1.602 × 10−19 C.

*April 24, 2015*

**math**

suppose maya made another sign with an area of 48 square inches. would this sign be larger or smaller than the sign with an area of 48 square centimeters? explain how you know

*April 22, 2015*

**physics**

A balloon rubbed against denim gains a charge of −5.0 µC. What is the electric force between the balloon and the denim when the two are separated by a distance of 3.0 cm? (Assume that the charges are located at a point.) The value of the Coulomb constant is 8.98755...

*April 22, 2015*

**Maths**

Thank you!!

*April 18, 2015*

**Maths**

find the nth term and write an equation to express 4,36,100,196,324 so far I've got 32(n-1) + 4 but it only works for the first two . . .

*April 18, 2015*

**Chemistry**

Isn't this less than the original concentrations?

*April 16, 2015*

**Chemistry**

If you mix 20.0mL of a 3.0M solution with 30mL of a 5.00M solution, determine the concentration in molarity of the new solution.

*April 16, 2015*

**L.A**

Wow that's sad you just told Dawn that you guys are stupid

*April 15, 2015*

**maths grade 11**

Tan (x-10 degrees)+1=3

*April 10, 2015*

**maths grade 22**

Tan (x-10 degrees)+1=3

*April 10, 2015*

**8th grade math**

Company A charges $25.00 for up to 100 minutes, plus $0.50 for each extra minute. Company B charges $50.00 for an unlimited number for minutes. What are the equations for each company?

*April 9, 2015*

**PHYSICS HELP PLEASE!!**

A tangential force acts on the rim of a 2.0 kilogram disk-shaped wheel (0.50 m radius) and gives the wheel an angular acceleration of 4.8 rad/s^2. Neglect friction and find the magnitude of the force

*April 5, 2015*

**Physics**

A tangential force acts on the rim of a 2.0 kilogram disk-shaped wheel (0.50 m radius) and gives the wheel an angular acceleration of 4.8 rad/s^2. Neglect friction and find the magnitude of the force

*April 4, 2015*

**Spanish**

That was my second option, so getting the same answer from another perspective is good to know I'm on the right track.

*March 25, 2015*

**Spanish**

My answer was Monument, and i don't have any choices because the paper is like a worksheet, and doesn't have any vocabulary words. The worksheet is similar to a crossword puzzle.

*March 25, 2015*

**Spanish**

What is a name of a place that can be associated with the things below: 1. La historia, el arte: _____________

*March 25, 2015*

**Physics**

PE = (1/2)kx^2 (46.5) = (1/2)(455)(x)^2 x = 0.452 meters

*March 24, 2015*

**physics**

A coin with a diameter of 1.37 cm is dropped on its edge onto a horizontal surface. It starts rolling with an initial angular speed of 10.5 rad/s and rolls in a straight line without slipping. If the rotation slows with an angular deceleration of 2.34 rad/s 2 , how far does ...

*March 24, 2015*

**Physics**

Los Angeles (32 degrees North, 119degrees West) and Atlanta (33 degrees North, 84 degrees West) are approximately at the same latitude but not longitude. If a crow were to fly between the two cities what is the approximate shortest flight distance in kilometers?

*March 24, 2015*

**Help with Psychology Homework**

Your professor asks you to take a personality test. After taking the test, you read your description of your personality type, and are disappointed that the results do not seem to capture your personality at all. In fact, you think the test probably measures attitudes rather ...

*March 24, 2015*