# Posts by Shelly

Total # Posts: 340

**college math**

the half life of Uranium -238 is 4.5 billion years and the age of earth is 4.5 X 109 years. What fraction of Uranium-238 that was present when earth was formed still remains?

**college math**

thank you so much

**college math**

a medical institution request 1 gram of bismuth-214 which has a half life of 20 min. How many grams of bismuth-214 must be prepared if the shipping time is 2 hours.

**college math**

Poaching causes a population of elephants to decrease by 8% per year. If there are 10,000 elephants today, about how many will remain in 50 years?

**Math**

got it awhile ago. (300) (1.02)to the 24th power. equal $482.53. thanks

**Math**

You owe $300.00 on your credit card. Each month you fail to make a payment, your balance increases by 2%. how much will you owe after 2 years of missing payments?

**math**

Poaching causes a population of elephants to decrease by 8% per year. If there are 10,000 elephants today, about how many will remain in 50 years?

**math**

the answer given to us is $482.53. Not sure how she got it. still having problems with obtain the answer.

**math**

you owe $300 on your credit card. Each month you fail to make a payment, your balance increases by 2%. How much will you owe after 2 years of missing payments?

**math**

You owe $300.00 on your credit card. Each month you fail to make a payment, your balance increases by 2%. How much will you owe after 2 years of missing payments?

**math**

thank you that is also what i got. 125,000

**Math**

Scott's salary decreased from $78,000 to $74,000. What is the absolute change in salary, and what is the relative change in salary. also New salary is what % less than his old salary. and New salary is what % of his old salary. and new salary is what times his old salary. ...

**math**

the relative change in price was 45% decrease. If the new price is $68.00 what was the original price.

**math**

a drug test is 97% accurate. 2000 people take the test. 1975 of the people do not use drugs, while the other 25 are drug users. How many non-drug users will pass the drug test?

**math**

thank you.

**math**

Walmart's net sales for 2015 were 485.7 billion dollars. What were their average net sales per hour? please help.

**math**

The population of a town decreased from 15,400 to 12,950. What is the percentage decrease?

**Math**

The after-tax price of a shiny new car is $19,000. If 8% sales tax was charged, what was the pre-tax price of the car?

**mat**

a pair of $90 shoes goes on sale for 35% off and then goes on clearance rack for an additinal 10% off. A customer walks in with a 20% off coupon and uses it to buy the shoes. How much did the customer pay for the shoes? and the price paid was what percent of the original price.

**Math**

a pair of $90 shoes goes on sale for 35% off and then goes on the clearance rack for an additional 10% off. a customer walks in with a 20% off coupon good on all clearance items and buys the shoes. How much did the customer pay for the shoes? and the price paid was what ...

**Math**

In 2016 there were ab out 135 million households in the United States. 36.5% of the households own at least one dog. On average, these households have 1.6 dogs. How many millions of pet dogs were in the United States. Round to the nearest tenth of a million. Please help.

**Chemistry**

Making a solution at 100•C What would be the smallest volume of water needed to dissolve 12.0g of KNO3 at 100•C

**Algebra **

Come up with a new linear function that has a slope that falls in the range -1<m<0. Choose two different initial values. For this new linear function what happens to the functions values after many iterations? Are the functions values getting closer to a particular ...

**Geography **

State one characteristic of mid latitude cyclones that other types of cyclones do not have

**math**

A machine packages bags of almonds. The weights of the bags are normally distributed with a mean of 14 oz and a standard deviation of 1.2 oz. Enter the z-score of a bag of almonds that weighs 12.2 oz. my answer: -1.5

**Math**

Drake has 5 baskets of fruit. Each basket has 12 plums and 14 apricots. How many pieces of fruit does Drake have in the baskets?

**Algebra**

Evaluate fraction numerator open vertical bar a minus 16 b close vertical bar over denominator open vertical bar a plus b close vertical bar end fraction when a = -10 and b = 3

**algeba**

A ladder is leaning against a building. The base of the ladder is 8 feet from the wall, and the top of the ladder reaches 6 feet up the wall. How long is the ladder?

**Sigfigs**

How would you round 31.797 in correct sigfigs? Thanks

**Maths**

The product of two natural numbers is 18. If one is added to four times the smaller number this is equal to the larger number. Find both numbers

**Maths**

Amita wants to make a mold for a candle. She wants the shape of the candle to be rectangular prism with a volume of exactly 28 cubic cm. The answer for this question is given as 10 molds. Can you explain in detail how the answer is 10 to better understand.

**soc 305**

Judd is hungry. He sees a candy bar in a store, so he steals it. What theory of crime does his action most

**Math**

Find the domain and range of the function. h(x)=4^sqrt 7-3x thank you!

**Technical Math (College)**

Question: The formula s=4.90t^2 gives the distance s in meters that a body falls in a given time t. Find the distance a ball drops in 4.2 seconds. Use the rules for multiplication of measurements in evaluating the answer. ------------------------------------ I understand how ...

**math**

If a plant has grown 62 3/4 inches in 1 1/3 months, what is the growth in 1 month?

**Math**

This is the equation he come up with for the problem but, he is told it is wrong.

**Math**

eight more than the quotient of a number and five is three. Write an algebraic expression or equation 8+y/5=3

**chemistry**

How many moles of sulfur are present in 2.9 moles of Al2(SO4)3

**science**

The lift curve of the airfoil of an aircraft is as shown. The weight of the aircraft is 1500 kg. If the stall speed of the aircraft is 60 m/s, determine the wing area.

**MAT 221**

If 7 pens cost d dollars, how much, in dollars, does each pen cost?

**math**

the product of 9 and jose's height is 117

**Math**

How much money is 3/4 of $24 ?

**phi 208**

According to Nagel, which of the following may be permitted by absolutism, at least in some circumstances? (Points : 1) Intentionally killing an innocent person Doing something that brings about an innocent person's death Dropping a nuclear bomb on an enemy city Torturing ...

**psychology**

Could the effect of being clinically depressed on the number of close friendships an individual has be studied in an experimental research design? I think not because the variables cannot be manipulated.

**English**

Okay I figure on what needs done with my assignment.thanks for the help.

**English**

Not the same person

**English**

Oh ok

**English**

Thanks I just need figure how to structure my argument essay since am only talk about side of the topic.

**English**

What does refute the reasons mean ?

**English**

Yeah

**English**

It about compare and contrast essay I did on living in the midwest and south.

**English**

A paper

**English**

What does these sentence mean to do?what type of basis of comparison exists for the topic that you chose. ?what common ground or common elements do the two subjects share?

**Hydrology**

I have no idea how to calculate this, I just need some direction please (like an equation)? Consider a drainage basin 187 km2. How much water is produced (m3) if 2.5 inches of rain falls on the basin? How many people could be supported on the water produced per day? Per year? ...

**Math**

Courtney is traveling 8 mph to a location and 6 mph back. trip is 7 hours in total. what time did she spend at each speed???

**math**

A company will need $65,000 in 6 years for a new addition. To meet this goal the company deposits money in an account today that pays 5% annual intrest compound quarterly. Find the amount that should be invested to total $65,000 in 6 years. the company should invest?

**English**

I had already checked that out prior to posting. Unfortunately, there is no explanation for citing the column, unless I'm misunderstanding. That was basically my dilemma on how to cite the column name of a newspaper. Thank you

**English**

I forgot to say--it has to be in MLA format. Thank you

**English**

I can't find on the web how to quote an article from the New York Times that appeared on the web--the catch is it has a column name This is the info: Title: Is College Worth It? Clearly New Data Say Author: David Leonhardt Column Name: The Upshot Publication date: May 27, ...

**statistics**

A nutritionist was interested in determining the smoking status of her clients. She asked each of her clients to report his or her current smoking status: Smoker, Ex-Smoker, and Non-Smoker. Which of the following graphical techniques is the best way for her to represent the ...

**statistics**

In a school election, 5 people run for student body president. The actual number of votes for each candidate would be a ___ variable. If the total number of votes were removed and the candidates were listed in order of least to most popular, this would be a __ variable. a. ...

**math**

For his long distance phone service, Josh pays a $5 monthly fee plus 9 cents per minute. Last month, Josh's long distance bill was $22.82 . For how many minutes was Josh billed?

**Math**

Mary has nickels, dimes and quarters worth $12:85. If the number of dimes and the number of quarters is more than twice the number of dimes, how many more dimes are there.

**math**

I know the answer. I don't know how to get to the answer to this problem: The number of marbles Mari has is 2/3 the number Tanya has. Together they have 40 marbles. How many marbles does Tanya have? I know the answer is 24, but how?

**math**

The number of marbles Marci has is 2/3 the number Tanya has. Together they have 40 marbles. How many marbles does Tanya have?

**math**

A piece of a broken wheel is shown. It was taken to a machine shop to be replaced with a new “whole” wheel. Find the radius of the wheel if AC=10cm, BD= 3cm, and D is the midpoint of AC. Round to the nearest hundredth. (note: keep in mind this circle/wheel is not ...

**Math**

An organization is planning a dance. The band will cost $400 and advertising costs will be $100. Food will be supplied at $2 per person and tickets cost $6 per person. How many people will have to attend the dance if the organization want to profit $400?

**physics**

Given the atmospheric pressure is 10 5pa what is a gauge pressure of 0.55 mpa equal to?

**physics**

The mass of a vehicle is 4.25 tones concentrate 1.25 meters behind the front wheels what is the force required to jack up the rear wheels?

**Math**

In 1997, a typical American consumed 52 liters of bottled water, and in 2001, a typical American consumed 74 liters of bottled water. Let y be the number of liters of bottled water consumed by a typical American in the year x, where x = 0 represents the year 1997. (a) Which of...

**Math**

A group meeting is attended by 14 delegates. 9 of the delegates are from Atlantis and 5 of the delegates are from Zedonia. (a) In how many ways can the group choose 6 of the 14 delegates to form a negotiation panel? Show work. (b) In how many ways can the group choose 6 of the...

**physics**

A dust particle carrying a charge of is 2 mm to the left of another dust particle carrying a charge of . Find the magnitude and direction of the elec- tric force on the first particle.

**pre cal**

how did you get the nine after the A?

**pre cal**

where do i plug in thoes number

**pre cal**

the (-3,5) is the vertex how do i use that i am not completely understand

**pre cal**

how do you determine the the quadratic function if the problem gives you a graph with the line has points of (-3,5) and (0,-4)?

**Pre cal**

how do you find A?

**Pre cal**

how would you find the answere if they give you a graph with two points like (-3,5) and (0-4)

**Pre cal**

thank you so much but i am still not understanding how you got that

**Pre cal**

second

**Pre cal**

determine the function f whose graph is given the vertex is (3,-13) and the y intercept is -4 how whould i work this out

**math---help! connections academy! check my answers**

Yes they are! :D

**math---help! connections academy! check my answers**

this you get all this question right?! im in the same quick check!

**SCIENCE 1 QUESTION PLS HELP ASAP**

Did you get the right answer?! i have to answer the same question and i don't know it!

**computer applications**

Microsoft word graded project lesson number...038189

**English composition**

List two specific,concrete original details for each sense that describing that particular testing event

**science help plzzz**

Me to and the answers are still right!!!

**PFN2**

upon retirement in 20 years Simon plans to invest $400,000 in a fund that earns 5%, what is the maximum annual withdrawal he can make over the following 15 years?

**finacne**

cYou think that in 15 years it will cost $214,000 to provide your child with a 4-year college education. Will you have enough if you take $75,000 today and invest it for the next 15 years at 5%? d. If you can earn 5%, how much will you have to save each year if you want to ...

**Finance**

If the average new house cost $210,000 today, how much will it cost in 10 years if the price increased by 5% each year

**physics**

008 (part 1 of 5) 10.0 points A wheel makes 72 revolutions in 2 seconds. What is the angular velocity of the wheel? Answer in units of cycles/s

**algebra**

ok! I really don't know how to do a problem to come up with the unknown

**algebra**

I am having trouble figuring out how to identify the unknown number

**physics**

runner goes from a standstill to a speed of 7.9 m/s in 14s. what is the acceleration of the runner?

**physics**

A car starts 200 m west of the town square and moves with a constant velocity of 15 m/s toward the east. a.Write the equation that represents the motion of the car. b.Where will the car be 10 minutes later? c.When will the car reach the town square?

**Angular momentum**

What is the angular momentum if the force is 72 N, the time is 1.5seconds and the lever arm is 3.2 meters?

**Chemistry**

A mixture is prepared by adding 0.25 L of 2.5 x 10^-3 M MgCl2 (aq) to 0.20 L of 0.010 M H2CO3 (aq). Does a precipitate form when the two solutions mix?

**english**

What is the error in the sentence? Try and find a suitable replacement for the discontinued model.

**Chemistry**

Determine the boiling point(bp)of 0.44 m Naphthalene, C10H8, in Benzene, C6H6. kb(C6H6)=2.53, bp(C6H6)=80.1

**math**

sue had $5.65 worth of quarters and dimes. she had 3 more quarters than she had dimes. how many quarters does she have? how many dimes does she have?