Wednesday

February 10, 2016
Total # Posts: 1,866

**nursing**

1 L is to infuse every 12 hours. calculate the mL/hr
*February 10, 2016*

**Math**

Never mind. My mom helped me.
*February 8, 2016*

**Math**

Which equation has a slope of -1/2 and a y intercept of -3? a. 4x+2y+3=0 b. 3x+6y+6=0 c. 5x +10y+30=0 d. 6x+2y+1=0 I have the answer. I know it is C, but this was today's lesson and I still don't understand why or how to get C. Please help.
*February 8, 2016*

**math**

the product of y and six exceeds three times the sum of y and four
*February 7, 2016*

**Chemistry**

Kc = 28 at some temperature for the reaction H2(g) + I2(g) ⇀↽ 2 HI(g). If 16.7 moles of HI are introduced into a 10.0 liter vessel, how many moles of I2 are present at equilibrium? Answer in units of mol.
*February 2, 2016*

**Chemistry**

The heat of vaporization of water is 9.73 kcal/mol. At what pressure (in torr) would pure water boil at 89◦C?
*February 2, 2016*

**Math Please check**

(1/8)17n x 8 I got: 17n/8 x 8= 17n not sure about this??
*February 2, 2016*

**Math**

Yes that's what I meant. Thank you
*February 2, 2016*

**Math**

4s-(3-2s)-6=9 Please check my work: 4s-3+2s-6=9 6s-9=9 3s=18 s=3
*February 2, 2016*

**Math**

Could you please explain the differences between linear relationships and exponential relationships? How or when would I use either or them? Thank you.
*February 1, 2016*

**Math**

The area of a rectangle is 12 square feet. What are all the possible integer values of its perimeter? I got: 1. all sides equal to 3 2. 5, 5, 1, 1 3. 4,4,2,2 Did I miss any combinations?
*January 30, 2016*

**Math**

A rollercoaster travels at 120 miles per hour on its track for 3 minutes. A. 3 minutes is what part of an hour? B Use a formula and your answer from above to calculate the distance traveled. A. I got 1/20 or 5% B. Not sure what formula to use. But I got .40 of a mile What do ...
*January 30, 2016*

**Math**

Got it now! Thank you!
*January 28, 2016*

**Math**

49^2 is 2,401 is that the area of the tablecloth? The back of my book has the answer as 2704, did I forget to do something?
*January 28, 2016*

**Math**

A square table has an area of 2116 square inches. A tablecloth hangs 3 inches over each end of the table. a. What is the length of one side of the table? b.What is the area of the tablecloth? a. I know is 46 inches Please help me to figure out b. Thank you.
*January 28, 2016*

**Algebra**

Thank you!
*January 27, 2016*

**Algebra**

I just need help setting up the equation - the rest I can do on my own: A man built a walk of uniform width around a rectangular pool. If the area of the walk is 253 square feet and the dimensions of the pool are 9 feet by 3 feet, how wide is the walk?
*January 27, 2016*

**language Arts**

In the excerpt from Barrio Boy, what makes Ernesto similar to several of his classmates?
*January 25, 2016*

**Math**

A can containing 3 tennis balls has a volume of 128/9pi cubic inches. If the height of the cylinder is 8in., what is the diameter of each tennis ball. Please explain how to do this.
*January 21, 2016*

**Math **

Mary bought a roll of ribbon. After using 5/8 of the ribbon to decorate some packages she had 15ft left how many feet of ribbon did she buy
*January 20, 2016*

**PHYSICS**

In your moving car, you covered 2.0 m during the first 1.0 s, 4.0 m during the second 1.0 s, 6.0 m during the third 1.0 s, and so forth. Find the acceleration.
*January 13, 2016*

**Math**

Thank you! 21y 21 X 42= 882 I get it! Thank you!
*January 12, 2016*

**Math**

An orchard has enough space to plant 21 rows with y trees in each row, or 18 rows with y+7 trees in each row. If each orchard plan contains the same number of trees, how many trees can each orchard contain? *I know the answer is 882 trees. But, I have no idea how to set up the...
*January 12, 2016*

**Physics**

Then air exerts a forward force of 8 N on the propeller of a 0.25 kg model airplane. If the plane accelerates forward at 1.8 m/s^2, what is the magnitude of the resistive force exerted by the air on the airplane? Answer in units of N.
*January 7, 2016*

**4 grade division**

Do you mean 368/6? 6x6=36 with zero left over, next step, Bring down the 8 6 goes into 8 one time with 2 left over so 61 r2
*December 24, 2015*

**Physics **

The driver of a car is going 30 m/s slams on his brakes, the car's tires lock, and the car skids to a stop on a level roadway. The kinetic coefficient of friction between its tires and the pavement is 0.75 as it slides. Draw a free body diagram of the car, find its ...
*December 22, 2015*

**math**

OK what?
*December 17, 2015*

**math **

Write an equation with a variable on both sides of the equal sign that has infinitely many solutions. Solve the equation and explain why it has an infinite number of solutions. I have no idea?
*December 17, 2015*

**math help plz?**

Ok thank ya'll so much. :)
*December 17, 2015*

**math help plz?**

So its D?
*December 17, 2015*

**gRammar**

True
*December 14, 2015*

**Math**

Ok, I get it now. Thank you.
*December 5, 2015*

**Math**

The length of a rectangle is 5 inches less than 3 times the width. The perimeter of the rectangle is 14 inches. Find the length and width of the rectangle. I did this: Length 3x-5; width 3x Then I did guess and check and came up with X=2 solving the problem with a perimeter of...
*December 5, 2015*

**Math**

Jim uses ribbion to make bookmarks. Jim has 9 feet of ribbion. He uses 1/3 foot of ribbon to make each bookmark. What is the total number of bookmarks J makes with all 9 ft of ribbon?
*November 29, 2015*

**math**

Maybe they are asking how much was added to get 4.87? Then you would subtract 4.87 and 3.93 to see how much was added.
*November 29, 2015*

**Math**

Yay! Thank you!
*November 28, 2015*

**Math**

I found x=4 and y=8 is that right? Then I found the area is 16. Is that right?
*November 28, 2015*

**Math **

A right triangle is formed by the origin and the x and y intercepts of the line 14x+7y=56. Find the area of the triangle. I know that Area of a triangle is 1/2bh, but how do I find the base and height? Thank you.
*November 28, 2015*

**Math**

Thank you!
*November 28, 2015*

**Math **

One triangle has side lengths 3,5, and 6. A similar triangle has side lengths 18, 15 and 9. Which of the following ratios is the scale factor of the triangles? A 1/6 B 1/3 C 1/5 D 2/3 The answer is given as B, but I don't understand why or how to get that. Please help.
*November 28, 2015*

**Math**

Yes, I want exactly 10 of the 50 classes to contain no left handers. So, instead of using .08 as the p for the last part, I should use the probability found from no left handers in a class of 20 instead? The question did ask me to find this as well, although I didn't put ...
*November 21, 2015*

**Math**

URGENT! In a school, 8% of students are left handed. If 50 classes of 20 students are randomly selected, what is the probability of 10 classes have no left handed students? I know that this is a binomial distribution question, but I can't seem to do this question even ...
*November 21, 2015*

**Chem**

what is the mass in amu of 3.12 moles of Ba(NO3)2?
*November 13, 2015*

**Science**

What laboratory instrument utilized the wave nature of electrons?
*November 13, 2015*

**Math 141**

Two cards are drawn from a well-shuffled deck of 52 playing cards. Let X denote the number of aces drawn. Find P(X = 0). (Round your answer to three decimal places.)
*November 13, 2015*

**precalc**

I don't understand how to do these w/o calc. I tried to write it in a way that will make someone understand how to read it. Hope I typed it clear enough.Thanks so much for the help anyone! How to find the exact value of logarithm: 10. log5^100 -log5^4 11. log4^8 +log4^8 12...
*November 12, 2015*

**Math 141**

Box A contains 3 white marbles and 4 black marbles. Box B contains 6 white marbles and 5 black marbles. An experiment consists of first selecting a marble at random from Box A. The marble is transferred to Box B and then a second marble is drawn from Box B. What is the ...
*November 12, 2015*

**Math 141**

Three machines turn out all the products in a factory, with the first machine producing 20% of the products, the second machine 15%, and the third machine 65%. The first machine produces defective products 17% of the time, the second machine 8% of the time and the third ...
*November 11, 2015*

**precalc(LOGS) CONFUSED!**

How do I rewrite without logarithms?? 2. log x= log a - 4 log b 3. ln t= 3/2 ln a - ln p 4. log y = 3 log x + log 17
*November 11, 2015*

**Precalc**

i figured C. I'm really stuck on b &d. btw. I can't use a calculator to figure these because we aren't supposed to. How do you find it out w/o using calc.
*November 11, 2015*

**Precalc**

Given log2=0.3010, log3=0.4771, log5=0.6690, and log7=0.8451... Find a.) log8 b) log5/7 c.) log1.5 d.) log3/14 e) log12 I didn't know how to do b, c, and d. I also don't know if log 12 is right. Answer: a.) 0.903 b.)? c.)? d.)? e.) 1.0791
*November 11, 2015*

**Math Please check**

Okay, so I have to reduce my answer then I will have it right. Thank you!
*November 5, 2015*

**Math Please check**

-4x+3y=12 Solve for y I got: 12+4x/3 Is that right?
*November 5, 2015*

**Math**

Steve please help or somebody please help
*November 5, 2015*

**Math**

Please help
*November 5, 2015*

**Math**

Is the simplified form of 2square root of 3 ⋅ 2square root of 6 rational? Yes or No
*November 5, 2015*

**Math**

Thank You
*November 4, 2015*

**Math **

Which of the following options results in a graph that shows exponential growth A.f(x)= 0.4(3)^x B.f(x)= 3(0.5)^x C.f(x)= 0.8(0.9)^x D.f(x)= 0.9(5)^-x
*November 4, 2015*

**Math**

Thank You so much
*November 4, 2015*

**Math**

Which of the following options is an equivalent function to f(x) = 3(2)3^x? A.f(x)=3(8)^x B.f(x)= 24^x C.f(x)= 27(8)^x D.f(x)= 3(8x)
*November 4, 2015*

**Social Studies**

Who won the battle of the Atlanta Campaign
*October 28, 2015*

**Social Studies**

Interesting facts😑😑😑😑😑😊
*October 28, 2015*

**Social Studies**

Wat r 10 facts u didn't know about the Atlanta Campaign
*October 28, 2015*

**English**

Just took the test the answers are: 1)B 2)A 3)Flase Sorry if you got it wrong because she didn't say the answer. I personally did the whole lesson but still had trouble with the test.
*October 28, 2015*

**Math**

(3p-pq^3)2pq= I got: 6p^2q - 2p^2q4 Can it be simplified more?
*October 26, 2015*

**Math please check**

p= -3; q=2 2q(p+q)+3pq I got -22
*October 26, 2015*

**Math please check my work**

I see that now! Thank you!
*October 26, 2015*

**Math please check my work**

Where did I go wrong? I did this: 16(3--2) -8 + -8 16(5) + -16 80-16= 64 Thanks for your help.
*October 26, 2015*

**Math please check my work**

I forgot to put that x=4 and y=-2
*October 26, 2015*

**Math please check my work**

4x(3-y) - 2x + xy I got 64. Is that right?
*October 26, 2015*

**math**

A prize of $100, $200, $500, or $1000 will be randomly awarded to a game show contestant, with the probabilities of winning each prize shown in the table below. What is the expected value of the prize that will be awarded?
*October 21, 2015*

**Math**

True of false A broken scale can make changes in data appear less they than they actually are. If false, explain why. I know the answer is false because it is in my book, but I don't understand why.
*October 14, 2015*

**Physical Science**

I put that the kinetic energy increases, but am I missing something? Is that the whole answer?
*October 13, 2015*

**Physical Science**

What happens to the kinetic energy of a snowball as it rolls across the lawn and gains mass?
*October 13, 2015*

**Science/math**

Newtons second law of motion states that F =MA Force equals mass multiplied by acceleration. Mass is the constant. It does not change. What is the independent and dependent variable? I put force is independent and acceleration is dependent. Is that right?
*October 11, 2015*

**Math-Sorry I had a mistake in the first problem.**

Please check my work: Label the dependent and independent variable. 1. Time spent studying and Score on a test 2. If a scientist conducts an experiment to test the theory that a vitamin could extend a person's life expectancy. What are the dependent and independent ...
*October 10, 2015*

**Msth**

Please check my work: Label the dependent and independent vstiablr. 1. Time spent studying and Score on a test 2. If a scientist conducts an experiment to test the theory that a vitamin could extend a person's life expectancy. What are the dependent and independent ...
*October 10, 2015*

**Math**

Okay, thank you.
*October 1, 2015*

**Math**

How did you get that 1 cubic centimeter = 0.0610237 cubic inch ?
*October 1, 2015*

**Math**

Convert 630 cubic centimeters to cubic inches. I know that 1 inch = 2.54cm I tried 630/2.54 but I didn't get the answer in my book, which is 38.44. What am I doing wrong please?
*October 1, 2015*

**Math**

That's what I did and I got .45. I was just doubting myself because I thought I had to set it up differently. It seemed too easy. Thank you.
*September 30, 2015*

**Math**

A basketball player attempted 1789 free throws. He made 801 of of them. What is the probability that the player will make the next shot he attempts? Write the probability as a decimal rounded to the nearest hundredth.
*September 30, 2015*

**Algebra 1**

What are the two quantities that should be measured to find the rate at which water flows out of a shower head? Explain how the rate can be determined. Thanks!
*September 28, 2015*

**Science PLEASE HELP**

Okay, so yes a mixture can be made up of only elements. Why? Because mixtures can be made up of compounds and/or elements. Right?
*September 27, 2015*

**Science PLEASE HELP**

Could a mixture be made up of only elements and no compounds? Explain why or why not.
*September 27, 2015*

**Science**

Could a mixture be made up of only elements and no compounds? Explain why or why not.
*September 27, 2015*

**algebra**

If a=2 what is -a^2? -4 or 4? Why?
*September 22, 2015*

**Algebra**

ten-pin bowling ball has a volume of about 5274 cm3. A candlepin (8) bowling ball has a volume of about 48 in3. About how much greater is the volume of a ten-pin bowling ball than the volume of a candlepin bowling ball?
*September 20, 2015*

**Chemistry**

Lead has a density of 11 g/ml. Mercury has a density of 13.6 g/ml. How much more volume would 1 pound of lead occupy the one pound of mercury?
*September 19, 2015*

**statistics**

The cholesterol levels of adult American women has a mound-shaped and symmetric distribution with a mean of 188mg/dL and a standard deviation of 24 mg/dL. In what interval would you expect most American women’s cholesterol levels to be? Explain.
*September 19, 2015*

**physics**

Light from the Sun reaches Earth in 8.3 min. The speed of light is 3.00 x 10^8 m/s. How far is Earth from the Sun?
*September 15, 2015*

**Chemistry**

If 5ml of 10M HCl was added to 1 litre of 0.4M 3-(N-morpholino) propane sulfonic acid what would be the resulting pH?
*September 5, 2015*

**Math**

Internal rate of return What is the internal rate of return for the following project. An initial outlay of $9500 resulting in a single cash inflow of $16,281 in 7 years. Internal rate of return for the project is ___%
*June 15, 2015*

**Chemistry**

What is the total internal energy change (∆E), in J, of a system that releases 202.90 J of heat and absorbs 315.7 J of work from the surroundings?
*June 10, 2015*

**Civics ASAP PLZ =:)**

I had this question on a test of mine. I hope this is correct! Thx
*May 30, 2015*

**Geometry**

Find the approximate surface-area-to-volume ratio of a bowling ball with a radius of 5 inches. A. 0.6 B. 0.67 C. 1.67 D. 25
*May 29, 2015*

**math**

Yay! Thank you so much. Very much helps! :D
*May 14, 2015*

**MATH**

Awesome thanks so much!
*May 14, 2015*

**Math Help**

With the given information below, write the standard form equation for the parabola. 1.) Vertex: (-1,2) Focus(-1,0) 2.) Vertex: (-2,1) Directrix x=1
*May 6, 2015*