Thursday

January 19, 2017
Total # Posts: 666

**statistics**

Janet has a jar with 8 gold marbles 12 silver marbles and 4 bronze marbles is she chooses two marbles without replacement, what is the probability that she chooses two silver marbles. I think the answer is 11/46 but not sure how to work the prboem

*December 10, 2016*

**Science**

Write the ionic equation for dissolution and the Ksp expression for PbC12.

*December 7, 2016*

**Math**

Let f(x)= -3x+4 and g(x)= -x^2 +4x+1. Find and simplify g(k)

*December 6, 2016*

**Math**

Give an example of a function from everyday life.(fill in blanks):______ depends on_____, so _____is a function of _______.

*December 6, 2016*

**Math**

Simplify each expression. Sqrt of 128m^3n^5/sqrt of 81mn^7

*December 6, 2016*

**Chemistry**

Among the solubility rules previously discussed is the statement: Carbonates, phosphates, borates, and arsenates—except those of the ammonium ion and the alkali metals—are insoluble. (a) Write the expression for the equilibrium constant for the reaction represented ...

*November 27, 2016*

**Math**

If driving 50 mph how fast would the person 1 mile behind them have drive to catch up with them

*November 14, 2016*

**Physical science**

What is the wavelength of a standing wave in cm, if the separation between two adjacent nodes is 13.7cm?

*October 1, 2016*

**algebra**

I have a rebus puzzle it says THRU in bold print and AND in regular print THRU AND PLEASE HELP! !

*September 17, 2016*

**Chemistry**

Write the equation for the reaction of iron and oxygen. Label the oxidizing reagent, the reducing agent, the reduced element, and the oxidized element.

*June 17, 2016*

**College Algebra II**

The midpoint of the line segment from P1 to P2 is (-1,3) if P1 is (-5,2) what is P2

*June 11, 2016*

**Quantative reasoning**

Write the formula for the total cost of renting a full-sized car when the unlimited mileage charge is added.

*June 9, 2016*

**Life orientation**

Identify your human rights violation or discrimination and explain in and introductory paragraphs why you the specific human rights violations or discrimination

*April 27, 2016*

**Chemistry**

In the production of carbon disulfide (CS2), carbon (C) and sulfur dioxide (SO2) are reacted. If 8.00 g of sulfur dioxide reacts, how many moles of carbon dioxide are produced?

*April 26, 2016*

**stat**

smith is a weld inspector at a ship yard. he knows from keeping track of good and substandard welds that for the afternoon shift 5% of all welds done will be substandard. If smith checks 300 of the 7500 welds completed that shift, what is the probability that he will find less...

*April 21, 2016*

**Math**

A 20 foot piece of rope will be cut into as many 3 and 1\2 foot section as possible. how much rope will be left over?

*April 19, 2016*

**chemistry**

How many joules of heat are removed to completely covert 70.0 grams of water to ice at zero Celcius?

*April 11, 2016*

**chemistry**

How many moles of gas must be forced into a 5.0 L tire to give it a gauge pressure of 33.6 psi at 28 ∘C? The gauge pressure is relative to atmospheric pressure. Assume that atmospheric pressure is 14.8 psi so that the total pressure in the tire is 48.4 psi . PV = nRT 48....

*April 9, 2016*

**Prob/Stats**

First write out what you know in order to get the formula: x = # of movie goers 44% of movie goers eat popcorn so 44% of movie goers = movie goers who eat popcorn Out of 17 movie goers how many will eat popcorn? 44% of x = 44% of 17 = 7 movie goers who will eat popcorn But the...

*March 19, 2016*

**Math**

50 lbs of oats @$2 a pound = how much

*March 12, 2016*

**Chemistry**

how to write a balanced equation for the following reactions with amounts of released or absorbed heat expressed in numbers within the equation 1 mole of methane with O2 yields CO2 and H2O and releases 213 kcal of heat

*October 28, 2015*

**astronomy**

what is the altitude which you'll find 99% of the atmosphere's mass? Assume P=1 atm, atmosphere T=290 K and the atmosphere is mostly N2.

*October 25, 2015*

**Math**

What did the baby buzzard say when it saw an orange in the nest I got misspelled jumbo

*October 21, 2015*

**Physics- PLEASE HELP!!**

Yes

*October 21, 2015*

**calculus**

Find the area bounded by the curve y=1/2+2, the x-axis, and the lines x=1 and x=4. a.7 1/2 b.10 2/3 c.16 d.28 1/2

*September 2, 2015*

**IDOC**

1/b (2b-10)=17

*May 5, 2015*

**Chemistry**

consider the reaction at 298K. 2H2S(eq) + SO2-----3S(s) + 2H2O (g). Calculate Grxn under these conditions. PH2S=2atm Pso2 =1.5 atm PH2O + 0.01atm

*May 1, 2015*

**Middle Math**

My math calculator prompted me with this question 6E-7. My answer to this question is 0.00000007

*March 30, 2015*

**science**

I'm doing a lab for Le Chatelier's Principle. I'm concerned that all my answers sound very similar. Can someone help me and let me know if my answers are making sense? ~Thanks 1.) How is the reaction Zn(OH)2 <=> Zn^+2 + 2OH- affected by adding OH- I think ...

*March 20, 2015*

**math**

Susie uses 1/2 to help compare 1/3 to 3/5 and to help in comparing 3/7 with 2/3. Explain how 1/2 help determine which fraction is greater in each combination.

*March 3, 2015*

**algebra**

two planes which are 1695 miles apart fly towards each other,their speeds differ by 65 mph,if they pass each other in 3 hours, what is the speed of each

*February 26, 2015*

**algebra**

A 24 meters pole is held by a three guy wire into vertical position. Two of the guy wires are of equal length. The third wire is 5 meters longer than the other two and is attached to the ground 11 meters farther from the foot of the pole than the two equal wires. Find the ...

*February 23, 2015*

**Algerba**

A newspaper carrier has %5.75 in change. He has ten more quarters than dimes but two times as many nickles as quarters. how many coins of each type does he have?

*February 14, 2015*

**math**

Emily spent 1/2 of her money at the grocery store. Then, she spent 1/2 of what was left at the baker. Next she spent 1/2 of what was left on a cd. She spent the remaining $6.00 on lunch. How much money did she start with ?

*January 20, 2015*

**Business Math**

Compute Brianna's estimated tax payment for the third quarter. She is self-employed and she expects to earn $84,400 this year. Her estimated income tax rate is 22%. For self-employed persons, social security tax is 12.4% of wages up to $106,800, and Medicare tax is 2.9% of...

*December 9, 2014*

**Business Math**

Using the dating method, calculate the discount date and the net date. Unless otherwise specified, the net date is 20 days after the discount date: The date of invoice is April 6th, Terms of sale is 2/10, EOM. What is the Discount date? What is the Net date?

*December 5, 2014*

**Math**

jody has a rectangular piece of fabric 7/8 yard long and 4/5 yard wide. What is the area of the piece of fabric

*November 17, 2014*

**Intro to Chemistry**

When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. CaCO3(s)+2HCl(aq)=CaCl2(aq)+H2O(l)+CO2(g) How many grams of calcium chloride will be produced when 27.0 g of calcium carbonate are combined with 11.0 g of ...

*November 10, 2014*

**Intro to Chemistry**

Given the following chemical equation, determine how many grams of N2 are produced by 8.58 g of H2O2 and 5.62 g of N2H4. 2H2O2(l)+N2H4(l)=4H2O(g)+N2(g)

*November 10, 2014*

**finance**

Bill is a restaurant manager that falls into the 25% marginal bracket and pays an additional 5% for state taxes. He has invested 20,000 in corporate bonds which is currently earning a annual return of 7.5%. What is the after tax return on bill's corporate bonds for the year?

*October 21, 2014*

**judicial system**

Explain how a defendant may be processed through The Missouri judicial system. I have searched the internet and I can not information on this.

*October 20, 2014*

**Law**

•When should a status offense become a delinquent act?

*October 19, 2014*

**business law**

two of these

*October 12, 2014*

**physics**

5pi over 4

*September 27, 2014*

**algebra**

F=9/5C+32 What is celcius

*September 18, 2014*

**math**

In October, a HARDWARE STORE purchased snow shovels for $8 each. The original markup was 50% based on the selling price. In December, the store had a sale and marked down the shovels by 20%. By January 1, the sale was over and the shovels were marked up 15%. In March, the ...

*August 25, 2014*

**Chemistry**

Write an equation for the reaction that takes place when each base is added to water. A) LiOH B) (CH3)2NH.

*July 11, 2014*

**english 4**

I need to identify the subject, verb, and any complements (direct object, indirect object, subject complement, objective complement) and the prepositional phrases of the following sentances. Those mustard pickles are to sour for me.

*May 29, 2014*

**Biology**

How many calories are required to heat 10 ml of water from 25 degrees Celsius to 35 degrees Celsius?

*April 13, 2014*

**personal finance**

If you believe that a firm will grow rapidly in the future, you should buy its? a. common stock b. notes c.preferred stock d. notes

*April 11, 2014*

**Statistics**

The height of a certain species of a tree are normally distributed with a mean of 30ft and stand dev of 4ft. If a random sample of 16 of these trees is taken, what is the probability that the sample mean is less than 32fy?

*April 5, 2014*

**chemistry**

how many mL of 1M HCL is used to make: 100mL of 0.1M hcl 250Ml OF 0.5M hcl 10Ml OF 0.01m hcl

*March 29, 2014*

**personal finance**

The interest rate is composed of _____ and the ______? a. risk-free rate,risk discount b.risk free rate, risk premium c.risk free rate, default risk premium d. none of the above

*March 27, 2014*

**Statistics**

List five numbers for which the sample mean is 30 and not all numbers are equal and would have a mean of 30 but all numbers are equal

*March 9, 2014*

**algebra**

Solve the compound inequality graph solution 6x-4<-34 or3x+10>10

*February 25, 2014*

**algebra**

Solve the inequality graph solution 5r+4<5

*February 25, 2014*

**algebra**

Solve the equation or formula for the indicated variable S=5rTf foRT answers are T=s/5-r,, T=25r/s,, T=r2-5s,, T=s/5r2

*February 25, 2014*

**Billy the kid Essay**

Need Help Writing he body of my essay. approximately 550 to 750 words

*February 24, 2014*

**Texas Southern University**

In a respresentative study,a sample of n = 100 adolescents with a history of group participation is given a standardized self-esteem questionnaire. For the general po;ulation of adolescents, scores on this questionnaire form a normal distribution with a mean of u = 40 and a ...

*February 6, 2014*

**Finance**

Thank you.

*January 8, 2014*

**Finance**

You are given the choice of $4,000 in extra taxable income per year or a tax-exempt medical policy. The medical policy costs $300 per month. Your tax rate is 25%. Considering financial factors only, should you take the cash or the medical policy?

*January 8, 2014*

**math**

Thank you.

*December 18, 2013*

**math**

How does the phrase "send the base to the basement". refer to the change of base formula?

*December 18, 2013*

**PHYSICS URGENT HELP**

charges

*December 18, 2013*

**Pre-Calculus**

It is going to be a -1/5

*December 18, 2013*

**History**

Which of the following was Eisenhower's most significant legislative achievement? A. The Highway Act of 1956 B. The establishment of modern Republicanism C. The extension of Social Security benefits D. Increasing the minimum wage

*November 24, 2013*

**Math**

Please explain why you can't write a multiplication sentence.

*November 12, 2013*

**Math**

Marlon has 4 baseball cards, Jake has 4 baseball cards and Sam has 3 baseball cards. Can you write a multiplication sentence to find how many baseball cards they have altogether? Explain.

*November 12, 2013*

**Physics**

A radio-controlled car increases its kinetic energy from 8 J to 10 J over a distance of 6 m. What was the average net force on the car during this interval?

*November 8, 2013*

**Physics**

A 0.5 kg air-hockey puck is initially at rest. What will its kinetic energy be after a net force of 0.8 N acts on it for a distance of 0.5 m?

*November 8, 2013*

**Physics**

What is the kinetic energy of a 1100 kg sports car traveling down the road with a speed of 22 m/s?

*November 8, 2013*

**Physics**

A man travels 7km due north,then 10km due east.find the resultant displacement.

*November 5, 2013*

**Algebra 1**

A man built a house costing 9 times as much as the lot on which it was built. If the lot cost $5, 000 less than 1/6 the cost of the house, what was the cost of each?

*October 18, 2013*

**Algebra 1**

The length of the shadow of a building is 2 feet more than 2/3 the height of the building and it is also 12 feet less than the height. How high is the building?

*October 18, 2013*

**Algebra 1**

A basketball team won 16 games, or 4 less than 2/3 of the games they played. Find the number of games they played.

*October 18, 2013*

**math**

The cost, y, of renting a canoe can be shown by y+12x + 30 where x is the time in hours. Identify the y intercept as an ordered pair and explain what it means in terms of the problem.

*October 13, 2013*

**STAT**

You want to determine if your widgets from machine 1 are the same as machine 2. Machine 1 has a sample mean of 5 and a population standard deviation 2 and a sample size of 4. Machine 2 has a sample mean of 10 and a population standard deviation of 2 with a sample size of 64. ...

*October 7, 2013*

**algebra**

Lol umm I was wondering to

*October 6, 2013*

**STAT**

You want to determine if your widgets from machine 1 are the same as machine 2. Machine 1 has a sample mean of 15 and a sample standard deviation 6 and a sample size of 18. Machine 2 has a sample mean of 12 and a sample standard deviation of 6 with a sample size of 18. With an...

*October 4, 2013*

**physics**

A roller-coaster car with a mass of 550 kg starts at rest from a point 46 m above the ground. At point B, it is 23 m above the ground. [Express your answers in kilojoules (kJ).] (a) What is the initial potential energy of the car? Incorrect: Your answer is incorrect. . kJ (b) ...

*September 28, 2013*

**Physics**

a hockey puck slides across the ice at a rate of 11 m/sec and covers a distance of 70 meters. How long does it take the puck to travel 70 meters. also calculate the acceleration of the puck.

*September 12, 2013*

**English**

Which of the following statements about literary movements is not true?

*September 10, 2013*

**math**

Ned’s Sheds purchases building materials from Timber town Lumber for $3,700 with terms of 4/15, n/30. The invoice is dated October 17. Ned’s decides to send in a $2,000 partial payment. By what date must the partial payment be sent to take advantage of the cash ...

*August 30, 2013*

**Intro to Healthcare Statistics**

Discuss how statistics are generated and how statistical information is used by healthcare organizations. Explore the NC State Center for Health Statistics at the following website and discuss at least two types of statistic health information that NC collects.

*August 25, 2013*

**Business Math**

Three of every seven sales transactions at Dollar Discount are on credit cards. What percent of the transactions are NOT credit card sales? (Round percentages to the nearest tenth.)

*August 15, 2013*

**BUSN**

Can you reconcile the little things with the trends in customer relations? To help get started, identify and discuss several 'little things' and trends in customer relations.

*July 29, 2013*

**Sociology**

How can the Sociological Perspective help you in understanding the plight or condition of members in society who come from marginalized groups. i.e. African Americans, members of the LTGB community, women, Mexican Americans

*June 4, 2013*

**algebra**

A rectangle has length of 14x^4 and a width of 7x^3. Find the area in square units.

*May 20, 2013*

**algebra**

is this a arithmetic, or geometric sequence -96,-48,-24,-12,......

*May 15, 2013*

**math**

To select a _________ sample, the population is divided into disjoint subgroups according to some characteristics like income level, and then a few individuals are selected randomly from each of the subgroups to be in the sample. (Points : 1) (May choices are) stratified ...

*April 21, 2013*

**math**

what is the value of t in the equation t+5+3t=1

*April 8, 2013*

**math**

Find the vertex of the parabola. y = -2x2 + 12x - 13

*April 7, 2013*

**Math**

Simplify. (82 - 60) + [(-3 x 4) - 36÷4] 25 19 10 1 <- I think this one is right I really hate math!!! lol...

*April 7, 2013*

**Math**

Thank you Ms. Sue!!!

*April 7, 2013*

**Math**

Joe has $10,000 to purchase a used car. If the sales tax is 7% and the fee for title and license plates is $200, what is the maximum amount Joe can spend for a car? $9,158.88 <- I think this one is $5,764.70 right. $9,345.79 $9,532.71

*April 7, 2013*

**Chemistry**

6.34 L

*April 3, 2013*

**Math**

Upon examining the contents of 38 backpacks, it was found that 23 contained a black pen, 27 contained a blue pen, and 21 contained a pencil, 15 contained both a black pen and a blue pen, 12 contained both a black pen and a pencil, 18 contained both a blue pen and a pencil, and...

*March 31, 2013*

**Math**

In a group of 37 children, 14 had a dog, 20 had a cat, and 12 had both a dog and a cat. How many children had neither a dog nor a cat as a pet? 23 8 35 15 Is the answer 15? I think it is 15

*March 31, 2013*

**Math-Algebra**

The area of a rectangle is represented by 5x^2+19x+12. What is the length?

*March 29, 2013*

**math**

200/8=$25 $25/5 days-$5 a day

*March 29, 2013*