Friday

October 21, 2016
Total # Posts: 2,014

**geometry**

an inscribed angle with a diameter as a side has a measure of x degrees. if the ratio of measure of arc AD to measure of arc DB is 1:4, what is the measure of arc DB?

*March 7, 2016*

**geometry**

A painter sets a ladder up to reach the bottom of a second-story window 16 feet above the ground. The base of the ladder is 12 feet from the house. While the painter mixes the paint, a neighbor's dog bumps the ladder, which moves the base 2 feet farther away from the house...

*February 28, 2016*

**Algebra**

No, not in calculus yet - I will take that next. Thank you so much for your help!

*February 28, 2016*

**Algebra**

A rectangular playground is to be fenced off and divided in two by another fence parallel to one side of the playground. 440 feet of fencing is used. Find the dimensions of the playground that maximize the total enclosed area. Remember to reduce any fractions and simplify your...

*February 28, 2016*

**Pre-Calc**

Solve the quadratic equation by factoring. Check your solutions in the original equation. (Enter your answers as a comma-separated list.) x^2 + 2ax + a^2 = 0

*February 11, 2016*

**Math**

An open gift box is to be made from a square piece of material by cutting four-centimeter squares from each corner and turning up the sides (see figure). The volume of the finished gift box is to be 324 cubic centimeters. Find the size of the original piece of material.

*February 11, 2016*

**Pre-Calc**

An open gift box is to be made from a square piece of material by cutting four-centimeter squares from each corner and turning up the sides (see figure). The volume of the finished gift box is to be 324 cubic centimeters. Find the size of the original piece of material.

*February 11, 2016*

**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*

**History**

Bbbb

*February 4, 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*

**English**

Thanks James :)

*January 24, 2016*

**English**

THANK YOU AUSTRALLIAN DUDE! OMG I GOT THEM ALL RIGHT (Exept for one but thats okay your awesome 16 was really theirs.) Thanks again!! :)))

*January 24, 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*

**Poetry**

Jadore is right thank you!!! <3333

*January 12, 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*

**Algebra**

Thanks Damon I tool all the notes on the lessons that they gave me I just counldnt figure out what to do because all of the examples didn't have this kind of formula. Thanks again

*January 8, 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*

**math**

My answers 1. C. 10 2.D 9 3. B 12 4.c 8 100% correct trust me will pass it ! Just took the test

*November 12, 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*

**Study Skills Practice**

1. B 2.d 3. A 100% correct

*October 5, 2015*

**Mental & Emotional Health**

1. true 2. time magement 3. true 100% correct these are the correct answers 3/3 100%

*October 2, 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*

**science**

1. B 2. A 3.b 4. A 5. D 100% correct I got 5/5

*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*

**Math**

1. B -9 2. C y^19 3. D w^ -6 4. B 1 5. C 5^3 ThESe are a 100% correct True me will pass it.

*September 28, 2015*