Saturday

July 4, 2015

July 4, 2015

Total # Posts: 580

**science**

An astronaut has a mass of100kg. She recedes from her spacecraft using spurts of gas from a small unit on her back. If the force generated by the gas spurt is 50N, calculate her acceleration.
*June 16, 2015*

**Finance**

what is the present value of $2500 per year for 9 years discounted back to the present at 11 percent?
*June 9, 2015*

**algebra**

A cubic polynomial function f(x) has leading coefficient -2 and intercepts the y-axis at 2. If f(1)=1, and f(-2)=-2, find f(-1) and write the complete function.
*April 6, 2015*

**us history**

Who explored enough of South America to deem it a new continent?
*April 1, 2015*

**health part2**

The sole activity of the respiratory system is breathing. True False The exchange of gases between the blood and tissue cells is external respiration. True False Air flows in the process of pulmonary ventilation because of pressure differences between the atmosphere and the ...
*March 28, 2015*

**health part2**

The sole activity of the respiratory system is breathing. True False The exchange of gases between the blood and tissue cells is external respiration. True False Air flows in the process of pulmonary ventilation because of pressure differences between the atmosphere and the ...
*March 28, 2015*

**Body Systems II**

Arteries carry blood ________ the heart.
*March 28, 2015*

**math**

Shelby walks at a constant rate. the equation that represents this relationship is d=4t, where d is the distance in miles and t is the time in hours. What does the constant 4 tell you about shelby? Make use of structure. What question is answered by the equation d=4(32)?
*March 17, 2015*

**Science**

Haha, me too. :)
*February 26, 2015*

**Science**

Your name, it's Meredith Grey so I was wondering if you watched Grey's Anatomy?
*February 26, 2015*

**Science**

Thank you, you really helped me understand this better. You want Grey's Anatomy, don't you? :)
*February 26, 2015*

**math**

The probability of getting a white marble from a bag is 1/5. If there are 37 white marbles in the bag, what is the total number of marbles in the bag
*February 12, 2015*

**Math**

A square with a side length of 2s has a smaller square inscribed. The vertices of the smaller square are at the midpoints of the sides of the larger square. What is the ratio of the larger square to the area of the smaller square? Express your answer in simplest form.
*February 10, 2015*

**word problems**

I am totally confused by the way you did this. It totally lost me. Can you please tell me in a different way? Where did you get the 12 from in your fractions?
*January 15, 2015*

**word problems**

miguel is 5ft 10 inches tall On a sunny day he casts a shadow of 4ft 2 inches long. At the same time, a nearby electric tower casts a shadow 8ft 9 inches long. How tall is the tower? Please help me set up the equation. Do i use is actual height or his shadow?
*January 15, 2015*

**Math 6th grade**

At lunch 3 1/4 small pizzas were equally devided into 4 people one person eats 1/4 of what he was given how much of a whole pizza did that person eat
*December 10, 2014*

**8th grade Math help**

7.615 so 8
*October 15, 2014*

**Math**

Thank you so much!
*October 13, 2014*

**Math**

luc has 1 h of homework to do. He has assignments to complete for social studies and math, and a science test. he sepends 2/5 of the time completing the social studies assignment, and 1/3 of the time on math. How much time does Luc have left to study for the science test?
*October 13, 2014*

**math **

Evaluate: -3/4 - 1 3/8 A: - 17/8 B: -1 C: 17/8 D: -5/8 I put C but its was incorrect. I'm to sure what the correct answer would then be. can you show me how to solve it and how to achieve the correct answer?
*October 7, 2014*

**physics**

turtle goes 0.50m/s rabbit goes 3.0m/s^2.. rabbit gives turtle 195 seconds head start. how long will it take for hare to catch turtle? 195*.5=97.5m +amount covered while rabbit is catching up
*October 6, 2014*

**math**

Jessie has a box of 1000 marbles 75 are yellow 230 are red 331 are blue and 364 are green what fraction of his marbles are yellow and what fraction of his marbles are red
*September 2, 2014*

**math**

Jessie has a box of 1000 marbles . He has 75 yellow , 230 red, 331 blue and 364 green what fraction of his marbles are yellow? What fraction of his marbles are ref?
*September 2, 2014*

**Mathematics**

price company received an invoice in the amount of $3,800 dated may 24 for merchandise they purchased. the terms of the sales are 3/15, 2/30, n/45. what payment should be made if the invoice is paid on June 20?
*August 26, 2014*

**Chemistry**

A 11.0-mL sample of an unknown H3PO4 solution requires 116mL of 0.140 KOH to completely react with the H3PO4. What was the concentration of the unknown H3PO4 solution (answer in M). H3PO4(aq) + 3KOH(aq) --> 3H2O(l) + K3PO4(aq)
*July 23, 2014*

**help **

If you could design a study on anything about human behavior to show how it is the same across cultures, what would that be?
*July 19, 2014*

**gender roll of development**

Do you think it is possible our biological make up dictate whether we will be maternal or parental and we choose our roles accordingly ?
*July 15, 2014*

**Social Studies**

yes that is correct
*July 15, 2014*

**Astronomy**

You must show your work for full credit.) Calculate the circular speed of an object that orbits the Sun at a distance of 0.2 AU (1 AU = 1.5e+11 meters, the distance between the Earth and the Sun): (Points : 10)
*July 10, 2014*

**Algebra 2**

Which matrix equation is equivalent to 3x+2y-5z=20 5x-10y+8z=17 -8+11y-2z=29
*May 19, 2014*

**biology help**

The cells in the retina that detect color and bright light are called _________ cells.
*May 19, 2014*

**biology help**

my first answer on the first question antidiuretic i'm not sure on second answer
*May 19, 2014*

**biology help **

Frequent urination is associated with alcohol consumption because alcohol suppresses the hormone (A)__________. As a result, urine becomes more (B)__________, and the body loses more water than it should.
*May 19, 2014*

**statistics**

At the beginning of the semester, students who registered for a statistics course were randomly assigned to two sections, each taught by a different instructor. At the end of the semester, we would like to test whether there are differences in performance on the final exam ...
*May 1, 2014*

**statistics**

A researcher was interested in assessing the effectiveness of the Statistics Diet as compared to a regular low calorie diet on weight loss. In the study, obese participants were randomly assigned to one of two groups: (1) the Statistics Diet, which required participants to ...
*April 30, 2014*

**statistics**

A fictional study was used to examine the effect of a new antianxiety drug on levels of anxiety. Sixty participants were randomly assigned to one of two groups: 1) new antianxiety pill and 2) placebo pill. One hour after taking the medication or placebo, all of the ...
*April 30, 2014*

**statistics**

A professor is interested in the relationship between the number of hours students study for a quiz and their quiz grades. She asked each student to record the number of hours that he/she studied for the final exam. She also recorded the students’ grades in percentages (...
*April 29, 2014*

**statistics**

A clinical psychologist notices that admission to the psychiatric hospital she works at seem to vary by season. Using a chi-square test, she rejects the null hypothesis that hospital admission is independent of season. What conclusions can she make? a. Hospital admissions are ...
*April 28, 2014*

**statistics**

For which of the following would it be most appropriate to use an ANOVA to analyze the data? A. A researcher is interested in determining the most effective format for advertising. He randomly assigns 60 people to one of three groups: (1) television commercial, (2) radio ...
*April 27, 2014*

**Math**

Drinking 8 fluid ounces of milk provides 270.0 milligrams of calcium. How many fluid ounces of milk provide 72.5 milligrams of calcium? Round to the nearest tenth.
*April 8, 2014*

**Science**

How much copper 2 sulfate do you need to react with 0.5grams of steel wool?
*March 19, 2014*

**math**

The unit rate of 7/12 liters in 3/10 kilometers
*February 20, 2014*

**math**

43+5=8 do u regroup
*January 23, 2014*

**math**

Thank you!!!!
*December 7, 2013*

**math**

A car dealer has 30 cars and trucks. If 2 more cars are delivered, the dealer will have 3 times as many cars as trucks. How many does trucks does the dealer presently have?
*December 7, 2013*

**math**

thanks
*December 4, 2013*

**math**

solve the equation for x using the fact that if a^u =a^v then u=v. 9^-x+15=27x. thanks
*December 4, 2013*

**math**

simpify: 3radical27x^10/5x^3y^5 7radical2x+2radical72x^3-radical162x^5 sorry dont know how to do the radical sign.
*December 4, 2013*

**math**

use the given zero to find the remaining zeros of the fuction...f(x)=x to the 5power-6x4power+7x3power-10x2power zero:1+i
*December 2, 2013*

**math**

find the real zeros of the given functions, use the real zeros to factor f. f(x)=-2x4power+9x3power+2x2power-39x+18
*December 2, 2013*

**Math**

What is the equation for an input of 0,1,2,3,4 and output of 1,4,9,16,25
*October 10, 2013*

**statistics**

Most Americans, 75% in fact, say frequent handwashing is the best way to fend off the flu. Despite that, when using public restrooms, women wash their hands only 67% of the time and men wash only 46% of the time. Of the adults using the public restroom at a large grocery chain...
*September 26, 2013*

**Science **

How does using a scale model make these relationships easier to understand?
*September 4, 2013*

**Math**

56 is ______% of 125.
*August 16, 2013*

**Accounting**

When a not-for-profit facility receives a contribution from a member of the community, the cost of the capital is inconsequential when deciding how to use the contribution, because it is, in effect, free money.” Yes
*August 5, 2013*

**Math**

How should the future value equation be modified if compounding occurs more frequently than annually?
*August 3, 2013*

**Math**

Compare the results of the present value of a $6,000 ordinary annuity at 10 percent interest for ten years with the present value of a $6,000 annuity due at 10 percent interest for eleven years. Explain the difference.
*August 3, 2013*

**Math**

Boulder City Hospital has just been informed that a private donor is willing to contribute $10 million per year at the beginning of each year for fifteen years. What current dollar value of this contribution if the discount rate is 14 percent?
*August 3, 2013*

**Math**

Boulder City Hospital has just been informed that a private donor is willing to contribute $10 million per year at the beginning of each year for fifteen years. What current dollar value of this contribution if the discount rate is 14 percent?
*August 3, 2013*

**Math**

In the future value annuity table at any interest rate for one year, why is the future value interest factor of this annuity equal to 1.00?
*August 3, 2013*

**Math**

Stillwater hospital is borrowing $1,000,000 for its medical office building. The annual interest rate is 5 percent. What will be the equal annual payments on the loan if the length of the loan is four years and payments occurs at the end of each year?
*August 3, 2013*

**Math**

Lincoln Memorial hospital has just been informed that private donor is willing to contribute $5 million per year at the beginning of each year for fifteen years. What is the current dollar value of this contribution if the discount rate is 9 percent?
*August 3, 2013*

**Math**

so how am i suppose to find the semiannually at 12
*August 2, 2013*

**Math**

still lose or 30,000(( 1.06)^12=
*August 2, 2013*

**Math**

If a community clinic invested $3,000 in excess cash today, what would be the value of its investment at the end of three years: a. at a 12 percent rate compounded semiannually? B. at a 12 percent rate compounded quarterly?
*August 2, 2013*

**Math**

If a nurse deposits $2,000 today in a bank account and the interest is compounded annually at 10 percent, what will be the value of this investment: a. five years from now? B. ten years from now? C. fifteen years from now? D. twenty years from now?
*August 2, 2013*

**Math**

The chief financial officer of a home health agency needs to determine the present value of a $10,000 investment received at the end of year 10. What is the present value if the discount rate is: a. 6 percent? b. 9 percent? c. 12 percent? d. 15 percent?
*August 1, 2013*

**Math**

The chief financial officer of a home health agency needs to determine the present value of a $10,000 investment received at the end of year 10. What is the present value if the discount rate is: a. 6 percent? b. 9 percent? c. 12 percent? d. 15 percent?
*August 1, 2013*

**Math**

I need help my homework and when I post I don't get an response what do I have to do for someone look at my homework question. Lincoln Memorial hospital has just been informed that private donor is willing to contribute $5 million per year at the beginning of each year for...
*July 31, 2013*

**Math**

The chief financial officer of a home health agency needs to determine the present value of a $10,000 investment received at the end of year 10. What is the present value if the discount rate is: a. 6 percent? b. 9 percent? c. 12 percent? d. 15 percent?
*July 31, 2013*

**Math**

After completing her residency, an obstetrician plans to invest $12,000 per year at the end of each year in a low-risk retirement account. She expects to earn an average of 6% for 35 years. What will her retirement account be worth at the end of these 35 years?
*July 31, 2013*

**Math**

If business manager deposits $30,000 in a savings account at the end of each year for twenty years what will be the value of her investment: at a compound rate of 12 percent? at a compounded rate of 18 percent? What would the outcome be in both cases if the deposits were made ...
*July 31, 2013*

**Math**

Two Wheeler-Dealer Bike Shop has a 22-inch off-road racer on sale this month for $239.95. If the original price of the bike was $315.10, how much would a customer save by purchasing it on sale?
*July 28, 2013*

**calculus**

Write the form of the partial fraction decomposition of the function do not determine the numerical values of the coefficients. 1/x^4-2401
*July 28, 2013*

**Math**

Ryan Miller wanted to make some money at a flea market. He purchased 55 small orchids from a nursery for a total of $233.75, three bags of potting soil for $2.75 each, and 55 ceramic pots at $4.60 each. After planting the orchids in the pots, Ryan sold each plant for $15.50 at...
*July 24, 2013*

**Math**

Two Wheeler-Dealer Bike Shop has a 22-inch off-road racer on sale this month for $239.95. If the original price of the bike was $315.10, how much would a customer save by purchasing it on sale?
*July 24, 2013*

**Math**

If ⅜ of a 60-pound bag of ready-mix concrete is Portland cement, how many pounds of other materials are in the bag?
*July 24, 2013*

**Math**

Ventura Coal mined 6 ⅔ tons on Monday, 7 ¾ tons on Tuesday, and 4 ½ tons on Wednesday. If the goal is to mine 25 tons this week, how many more tons must be mined?
*July 24, 2013*

**Math**

Thanks so much
*July 24, 2013*

**Math**

Solve the following problem and convert to lowest terms (mixed number). 6 ⅚ – 17/18 (six and five sixths minus seventeen eighteenths)
*July 24, 2013*

**Math**

Thanks so much
*July 24, 2013*

**Math**

Solve the following problem and reduce to lowest terms (mixed number or improper fraction). 2/3 + 1/6 +11/12
*July 24, 2013*

**Math**

Two Wheeler-Dealer Bike Shop has a 22-inch off-road racer on sale this month for $239.95. If the original price of the bike was $315.10, how much would a customer save by purchasing it on sale?
*July 21, 2013*

**Math**

Ryan Miller wanted to make some money at a flea market. He purchased 55 small orchids from a nursery for a total of $233.75, three bags of potting soil for $2.75 each, and 55 ceramic pots at $4.60 each. After planting the orchids in the pots, Ryan sold each plant for $15.50 at...
*July 21, 2013*

**Math**

Ventura Coal mined 6 ⅔ tons on Monday, 7 ¾ tons on Tuesday, and 4 ½ tons on Wednesday. If the goal is to mine 25 tons this week, how many more tons must be mined?
*July 21, 2013*

**Math**

Solve the following problem and convert to lowest terms (mixed number). 6 ⅚ – 17/18 (six and five sixths minus seventeen eighteenths)
*July 21, 2013*

**Math**

Solve the following problem and reduce to lowest terms (mixed number or improper fraction). 2/3 + 1/6 +11/12
*July 21, 2013*

**Math**

Convert 4/5 to higher terms of twenty-fifths.
*July 21, 2013*

**Math**

thanks
*July 21, 2013*

**Math**

Convert 57/9 to a whole or mixed number.
*July 21, 2013*

**Math**

Find the domain of the following functions. 1. y= radical(x-3) - radical(x+3) 2. y= [radical(2x-9)] / 2x+9 3. y= radical(x^2 - 5x -14) 4. y= [cubed root(x-6)] / [radical(x^2 - x - 30)] I'm terrible at finding domains.. so any help with these problems would be appreciated...
*July 12, 2013*

**Math**

Thank you guys! That is what I got. I wasn't expecting the complex roots.. That's why I wanted to check whether or not I was doing it right!
*July 12, 2013*

**Math**

Solve for x. x/(x-2) + (2x)/[4-(x^2)] = 5/(x+2) Please show work!
*July 12, 2013*

**math**

80% of what number is 50?
*July 7, 2013*

**Physics**

If a plane is flying 40 mph with a tailwind of 6 mph, how fast is the plane going.
*June 21, 2013*

**Math**

thanks
*June 20, 2013*

**Math**

2279.68
*June 20, 2013*

**Math**

On May 23, Samantha Best borrowed $40,000 from the Tri City Credit Union at 13% for 160 days. The credit union uses the exact interest method. What was the amount of interest on the loan?
*June 20, 2013*

**Math**

thanks
*June 6, 2013*

**Math**

Kristy Dunaway has biweekly gross earnings of $1,750. What are her total Medicare tax withholdings for a whole year? (
*June 6, 2013*