# Posts by ANGELA

Total # Posts: 1,678

**geometry**

A card is selected from a standard deck of 52 playing cards. A standard deck of cards has 12 face cards and four Aces (aces are not face cards find the probability of selecting. an eight given the card is not a face card. a club given the card is red. A king,given the card is ...

*June 15, 2012*

**AP Chemistry**

Thank you! This is one of the very introductory chapters. It teaches conversion rates and the difference between English, Metric, and SI Units, which is why there are English and Metric Units. The point is to convert the English units to Metric first.

*June 15, 2012*

**AP Chemistry**

What pressure is a person exerting on the floor if the person weighs 145 lbs and has shoes that contact the floor over a total area of 300. cm^2?

*June 15, 2012*

**chemistry**

What pressure is a person exerting on the floor if the person weighs 145 lbs and has shoes that contact the floor over a total area of 300. cm^2?

*June 13, 2012*

**geometry**

Show all work. Mary purchased a package of 15 different plants.but she only needed 10 plants for planting. In how many ways can she select the 10 plants from the package to be planted?

*June 12, 2012*

**geometry**

Each of the numbers 0 through 15 is written on a piece of paper and all of the pieces of paper are placed in a hat. One number is selected at random. determine the probability that the number selected is even. Note 0 is considered an even number.

*June 11, 2012*

**geometry**

In exercises 17-20, a single die is rolled one time. Determine the probability of rolling a number greater than 3 or less than 5.

*June 11, 2012*

**geometry**

A community 5K run will award $ 50 to the winner. 40 people enter the race,and they each pay an entry fee of $20. Assuming thay are all equally likely to win, what is a fair price for the competition? Round to the nearest cent.

*June 8, 2012*

**GEOMETRY**

Last fall, a gardener planted 56 iris bulbs. She found that only 49 of the bulbs bllomed in the spring. Find the empirical probability that an iris bulb of this type will bloom. give answer as a fraction in lowest terms. How many bulbs should she plant next fall if she would ...

*June 7, 2012*

**geometry**

One thousand raffle tickets are sold for $1.00 each. One grand prize of $200 and two consolation prizes of $50 each will be awarded. Jeremy purchases one ticket. Find his expected value. Show your work for full credit.

*June 6, 2012*

**geometry**

Expected value If on a $1 bet, Paul Goldstein's expected value is 0.30, what is Paul's expected value on a $5 bet. I got 1.50 but my teacher said it wasn't correct.

*June 5, 2012*

**geometry**

Expected value If on a $1 bet, Paul Goldstein's expected value is 0.30,what is Paul's expected value on a $5 bet?

*June 4, 2012*

**Reimbursement methodologies**

Yeah the answer is CMS-1500! Deals with outpatient claims only.

*June 4, 2012*

**geometry**

In exercises 31-34, a cooler at a picnic contains 100 cans of soda covered by ice. There are 30 cans of soda, 40 cans of orange soda, 10 cans of ginger ale,and 20 cans of root beer. The cans are all the same size and shape. If one can is selected at random from the cooler,...

*June 4, 2012*

**GEOMETRY**

DETERMINE WHICH IF ANY,OF THE THREE STATEMENTS ARE EQUIVALENT. GIVE A REASON FOR YOUR CONCLUSION.SHOW COMPLETE WORK. 1) iF THE DOG LICKS HER NOSE, THEN THE DOG IS NOT HAPPY. 2) IF THE DOG LICKS HER NOSE,THEN THE DOG IS HAPPY. 3) iF THE DOG IS NOT HAPPY,THEN THE DOG DOES NOT ...

*June 2, 2012*

**math**

30+ 23+27-17= 80-17= 63

*June 2, 2012*

**geometry**

write the argument below in symbols to determine whether it is valid or invalid. State you reason for your conclusion. Specify the p and q you used. Either the koi are swimming in the pond or the birds are chirping. The birds are not chirping. The koi are swimming in the pond.

*June 2, 2012*

**geometry**

construct a truth table for(p^~q)________> q .

*June 2, 2012*

**geometry**

Given p is false, q is true,and r is false, find the truth value of the statement. (~P <____> ~Q) ____> ~r Show step by step work.

*June 1, 2012*

**geometry**

Construct a truth table for (q^p)____> ~ p, Be sure to include all intermediate steps in your table.

*June 1, 2012*

**geometry**

construct a truth table for (p^~q) arrow p

*May 31, 2012*

**geometry**

let p,q,and r be the following statements p:Jamie is on the train. Q: Sylvia is at the park. r: Nigel is in the car. Translate the followins statement into english (~q^r) arrow ~p

*May 30, 2012*

**geometry**

let p represent a true statement, while q and r represent false statements, find the truth value of the compound statement ~[(p^q)^r]

*May 30, 2012*

**geometry**

let p represent the statement, JIm plays football," and let q represent " Micheal plays football." Convert the compound statement into symbols.

*May 30, 2012*

**geometry**

convert the compound statements into words p= babies eat bananas q= babies do not sleep through the night ~(P arrow q)

*May 30, 2012*

**statistics**

Urn I and Urn II each have 2 red chips and 2 white chips. Two chips are drawn simultaneously from each urn. Let X1 be the number of red chips in the first sample and X2 the number of red chips in the second sample. Find the pdf of X1 + X2

*May 28, 2012*

**geometry**

a recreation has the following dimensions. 15ft,33ft, 12ft, and 12ft. Carpeting will cost $ 1.50 per square foot. How many square feet of carpet will be needed and how much will it cost. Include correct units in each solution.

*May 19, 2012*

**geometry**

find the perimeter and area of a right triangle if the shortest side is 20m and the longest side is 29m. Include correct units with your solution.

*May 18, 2012*

**english**

what would the tone of this poem be? serious? Foundations Leopold Staff I built on the sand And it tumbled down, I built on a rock And it tumbled down. Now when I build, I shall begin With the smoke from the chimney

*May 17, 2012*

**Algebra**

Solve the equation and check the solution: -4(t+7)-(t+6)=10 the solution t is:

*May 16, 2012*

**geometry**

find the supplementary angle of the given angle 148.7

*May 15, 2012*

**Geometry**

The surface area of a cone is 55 pie cm squared. The radius is 5 cm. What is the slant height?

*May 13, 2012*

**English**

1. A major difference between today’s Hispanic and past European immigrants is that— (1 point) for Hispanics, the old country is only two hours away. European immigrants were all light-skinned. Hispanics are willing to take jobs Americans don’t want. European ...

*May 13, 2012*

**math 120**

what is answer for A = 90[1.00375)-1/0.00375

*May 6, 2012*

**Statistics**

Describe how the confidence intervals will change depending on whether the population standard deviation is known or unknown

*May 6, 2012*

**Statistics**

For this assignment you are to imagine that you are part of a select marketing group. This select group has been asked to consider the Colorado City Convention and Visitors Bureau survey of 25 hotels in the local area. The survey is concerned with the current availability of ...

*May 5, 2012*

**Ashford**

find the x- intercepts and y intercepts of the function f (x)=2x-8

*May 3, 2012*

**Algebra/Steve???**

The solution is x^2-6x+9=0? In ax^2 + bx + c =0 form? Can you explain please?

*May 1, 2012*

**Algebra/Steve**

LOVE YA

*May 1, 2012*

**Algebra**

Write a quadratic equation in the variable X. Write in standard form: ax^2+bx+c=0 using 3 as the only solution. Cheers!

*May 1, 2012*

**Simple & Compounding Interest**

sierra deposits $500 into a new savings account that earns 5% interest compounded annually. if sierra makes an additional deposits or withdrawals, how many years will it take for the amount in her account to double?

*April 25, 2012*

**Math**

What is the area of a decagon with a side length of 4cm?

*April 15, 2012*

**Physics**

Thank you

*April 14, 2012*

**Physics**

waves propagate down a 25gram string at 35 m/s. If the string has a length 1.5 meters, what iss the magnitude of the tension acting along it? i am stuck on how to figure this one out any help would be appriciated.

*April 14, 2012*

**Finances**

Oops. I meant; How do you do a time series regression?

*March 17, 2012*

**Finances**

Hoe do you do time series regression?

*March 17, 2012*

**College Physics**

A 42-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, her kinetic energy decreases to 220 J from 460 J. How high does she rise during this interval? Neglect air resistance. Just wondering how to solve this.

*March 16, 2012*

**College Physics**

Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the planets are determined to be 43.5 km/s and 54.0 km/s. The slower planet's orbital period is 6.53 years. (a) What is the mass of the star? (b) What ...

*March 15, 2012*

**College Physics**

A skier is pulled up a slope at a constant velocity by a tow bar. The slope is inclined at 28.2 ° with respect to the horizontal. The force applied to the skier by the tow bar is parallel to the slope. The skier's mass is 46.7 kg, and the coefficient of kinetic ...

*March 15, 2012*

**College Physics**

A 45.7-g golf ball is driven from the tee with an initial speed of 46.0 m/s and rises to a height of 25.9 m. (a) Neglect air resistance and determine the kinetic energy of the ball at its highest point. (b) What is its speed when it is 6.82 m below its highest point?

*March 15, 2012*

**College Physics**

A 42-kg girl is bouncing on a trampoline. During a certain interval after leaving the surface of the trampoline, her kinetic energy decreases to 220 J from 460 J. How high does she rise during this interval? Neglect air resistance. The quarter is over but I am still trying to ...

*March 15, 2012*

**physics**

what is sqrt??

*March 15, 2012*

**Physics**

A person heats a can of soup on a stove. If he does 250 Joules of work ON the soup by stirring it as the burner adds 1675 Joules of heat, what is the change in its internal enegry? I did 250- 1675 because the work done On something is negative. can you tell me if that's ...

*March 11, 2012*

**HELP! College Physics**

A skateboarder shoots off a ramp with a velocity of 6.7 m/s, directed at an angle of 59° above the horizontal. The end of the ramp is 1.1 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the origin the point ...

*March 10, 2012*

**history**

Which of the following is associated with the development of chain stores? A. R. H. Macy B. John Wanamaker C. Marshall Field D. F. W. Woolworth I think its d is that correct

*March 7, 2012*

**math**

I am not a teacher, but want to be one, and you don't have to believe my answer. I am a student that really loves math and it comes easy to me. rectangular pizza is larger by 155.44 in. rectangular is the better buy If each pizza has one inch of crust on the edges. ...

*March 7, 2012*

**trigonometry**

8ft

*March 7, 2012*

**College Physics Help**

Not sure how to apply the principle of conservation of mechanical energy.

*March 5, 2012*

**College Physics Help**

A thin rod (length = 1.10 m) is oriented vertically, with its bottom end attached to the floor by means of a frictionless hinge. The mass of the rod may be ignored, compared to the mass of the object fixed to the top of the rod. The rod, starting from rest, tips over and ...

*March 5, 2012*

**College Physics**

Never mind - I figured it out. Thanks for your help!

*March 5, 2012*

**College Physics**

Thank you! You answer is correct. My calculator is giving me 0.00345. I am not sure why. Do you think that it could be a setting that I need to change?

*March 5, 2012*

**College Physics**

Some bacteria are propelled by motors that spin hair-like flagella. A typical bacterial motor turning at a constant angular velocity has a radius of 1.1x10-8m, and a tangential speed at the rim of 2.0x10-5 m/s. (a) What is the angular speed (the magnitude of the angular ...

*March 5, 2012*

**math**

my answer is 18 what is yours

*February 28, 2012*

**math**

if 6 balls is 2/3s of aet how many in the whole set?

*February 28, 2012*

**Collision in One Dimension**

vf = (m1 v1i + m2 v2i) / (m1 + m2) = (57*2.2+77*4.5)/(57+77) =3.5 m/s

*February 26, 2012*

**Collision in One Dimension**

After skiding down a snow-covered hill on an inner tube, Ashley is coasting across a level snowfield at a constant velocity of +2.2 m/s. Miranda runs after her at a velocity of +4.5 m/s and hops on the inner tube. How fast do the two of them slide across the snow together on ...

*February 26, 2012*

**Conservation if Linear Momentum**

Figured it out! (V impact)^2/(2*g) V impact = (F ground*t)/m =6.07 m

*February 26, 2012*

**Conservation if Linear Momentum**

A student (m = 66 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.04 s. The average force exerted on him by the ground is +18000 N, where the upward direction is taken to be the positive direction. From ...

*February 26, 2012*

**math**

what is the lowest common denominator of 2/32 plus 4/28

*February 26, 2012*

**College Physic I**

A student (m = 66 kg) falls freely from rest and strikes the ground. During the collision with the ground, he comes to rest in a time of 0.04 s. The average force exerted on him by the ground is +18000 N, where the upward direction is taken to be the positive direction. From ...

*February 25, 2012*

**College Physic I**

Thank you so much!

*February 25, 2012*

**College Physic I**

A space probe is traveling in outer space with a momentum that has a magnitude of 4.99 x 107 kg·m/s. A retrorocket is fired to slow down the probe. It applies a force to the probe that has a magnitude of 1.87 x 106 N and a direction opposite to the probe's motion. ...

*February 25, 2012*

**physics**

a hot air balloon is hovering at an altitude of 6000 meters. The pilot decides that it is time to descend and turns off the balloon's burners.Once the balloon reaches the ground, the gas inside the balloon occupies 980 m cubed and is at atmospheric pressure. If the ...

*February 19, 2012*

**physics**

a hydraulic jack is used to move an 8896 newton car. if the area of the output piston is 8 times that of the input piston, how much input force is required to lift the car. i did Pi * 8 them multiplied that answer * 8896 then divided that answer times 8896. i don't think ...

*February 19, 2012*

**College: HCA/220 Week 3 DQ 2**

i need help getting real fusteriated

*February 16, 2012*

**Chemistry**

I am having trouble too: If the heat from burning 6.000 g of C6H6 2C6H6(l) + 15O2(g) -> 12CO2(g) + 6H2O(l) + 6542 kJ is added to 5691 g of water at 21 °C, what is the final temperature of the water? Please tell me what I am doing wrong: 293,551= 5691*4.2*(Tf-21C) 293551...

*February 10, 2012*

**Chemistry**

Thank you so much!!! That helped me too!

*February 10, 2012*

**english**

This sentence keep showing up as a error in it. Could you please find the mistake and fix it for me. To obtain a position as an Administrative Assistant which I can use my knowledge and experiences toward the growth of this company.

*February 9, 2012*

**math**

A corporation borrowed $124,000 cash by signing a 5-year, 10% installment note requiring equal annual payments each December 31 of $32,711. What journal entry would the issuer record for the first payment?

*February 7, 2012*

**physics**

a dog escapes from his front yard a 3:15pm and is discovered 3.5 miles from home at 4:50pm. What is the dog's average speed in mph. how do you solve this i am lost

*February 7, 2012*

**Maths**

A farmer wishes to plant 6 trees in 4 rows so that each row contains 3 trees. How can this be done?

*February 6, 2012*

**Managerial Accounting**

Greetings, I just started my accounting class and I do not have any accounting experience of knowledge (my first acct class). Could you please help me out. I just need the traditional and ABC direct, indirect, and unallocated cost answer for the two accounting systems. You ...

*January 28, 2012*

**Math**

As many as three instructors are hired for a martial arts class each week. 4:1 student-to-instructor ratio is considered ideal. Find the maximum number of students at each of these classes.

*January 26, 2012*

**physics**

how do you calculate acceleration if the values are the same at t=2 seconds and t= 4 seconds.

*January 24, 2012*

**physics**

if a cart is released from rest and it takes 28 seconds to travel down a 10 meter incline what would be the average speed of the cart

*January 24, 2012*

**history**

one distinction you couldn't overlook when critically evaluating the information provided about the boston tea party

*January 24, 2012*

**chemistry**

A certain substance has a heat vaporization of 47.97 kJ/mol. At what Kelvin temperature will the vapor pressure be 7.50 times higher than it was at 297K? Please help me! I don't understand heat vaporization questions

*January 23, 2012*

**physics**

I CAN'T GET THE RIGHT ANSWER :( A 0.230 kg block on a vertical spring with spring constant of 4.25 multiplied by 103 N/m is pushed downward, compressing the spring 0.048 m. When released, the block leaves the spring and travels upward vertically. How high does it rise ...

*January 15, 2012*

**algebra**

Find the domain of the function g(x)=3/10-7x

*January 6, 2012*

**algebra**

-9-12(2-3y)= -25-2(y+6)

*December 8, 2011*

**algebra**

write the slope intercept euation for the line with slope -1/2 and y intercept (0,3) and graph the line.

*December 8, 2011*

**algebra**

write the slope intercept equation for the line that passes through (-5,10)and (-4,3)

*December 8, 2011*

**ALGEBRA**

what is -9y-12(2-3y)= -25-2(y+6)

*December 7, 2011*

**Chemistry-help**

0.5g of Solid A is dissolved in 1L solvent to give a concentration of concentration 0.5g/L. UV absorbance spectrum was collected. How to calculate the absorptivity on the dried basis?

*December 6, 2011*

**ALGEBRA**

determine if (-1/3,3) is a solution to 3x+8y=23

*December 5, 2011*

**math/117**

FOIL (8x^8-9)(x^9-5)

*December 4, 2011*

**Math**

Multiply (b+1/3)(b+1/5)

*December 4, 2011*

**math/117**

Which one is the answer? 3 or 2.54?

*December 4, 2011*

**math/117**

Jack usually mowes his lawn in 7 hours. Marilyn can mow the same yard in 4 hours. How musch time would it take for them to mow the lawn together?

*December 4, 2011*

**algebra**

write the equation for this situation the population, p, in thousands,can be approximated by the sum of 4 and one-half times the years since 1985,d. Then graph the equation and use the graph to determine the population in the town in 1995.

*November 30, 2011*