Monday

February 27, 2017
Total # Posts: 276

**Physics**

Two ultrasonic sound waves combine and form a beat frequency that is in the range of human hearing for a healthy young person. The frequency of one of the ultrasonic waves is 84 kHz. (The range of hearing for a healthy young person is 20 Hz to 20 kHz.) (a) What is the smallest...

*February 16, 2017*

**buisness**

If you find a job posting for a community college that clearly states that the job will close on 08/15/2017, what does this mean? a. Someone will be hired by that date. b. The employer is only hiring until that date. c. After that date, the employer will no longer accept job ...

*February 3, 2017*

**Math**

Let A denote the portion of the curve y = sqrt(x) that is between the lines x = 1 and x = 4. 1) Set up, don't evaluate, 2 integrals, one in the variable x and one in the variable y, for the length of A. My Work: for x: integral[4,1] sqrt(1+(dy/dx)^2) dy/dx = 1/2sqrt(x) (dy...

*January 25, 2017*

**Calculus - still confused**

Oh sorry about the that, I was starting to do u substitution and was changing my limits to [16,1] but then remembered I didn't have to evaluate. And gotcha! so then for C would the set up be ?[-2,4] 2pi(sqrt(x) - 2) ?(1 + (dy/dx)^2) dx oh wait... wouldn't x = -2 give ...

*January 25, 2017*

**Calculus**

NOTE!! I just realized all of my integral symbols turned into a^<< please note, they are meant to be the integral symbol!

*January 25, 2017*

**Calculus**

Let A denote the portion of the curve y = sqrt(x) that is between the lines x = 1 and x = 4. 1) Set up, don't evaluate, 2 integrals, one in the variable x and one in the variable y, for the length of A. My Work: for x: âˆ«[4,1] sqrt(1+(dy/dx)^2) dy/dx = 1/...

*January 25, 2017*

**Calculus**

Thank you Steve!

*January 23, 2017*

**Calculus **

Can you please check to see if these answers are correct? I have provided my work as well! That you! This is much appreciated!! 1. What is the volume of the solid that is generated by revolving the region bounded by the curves x = 3y^2-2 and x = y^2 and y = 0 about the x axis...

*January 23, 2017*

**Calculus**

Hello, I would like to make sure the answers to these questions are correct. 1. Using the shell method, what is the volume of a solid that is generated by rotating the region by y = x^2 and x = y^2 about the x axis. My Work: r = y h = sqrt(y) - y^2 2pi ?[0,1] (y)((sqrt(y) - y^...

*January 18, 2017*

**riddle**

It's a calendar Because a calendar hosts a year and every day is new but old because a day such as that has been before. Like a year before has same days and weekends recurring in another year.

*January 17, 2017*

**Calculus **

I would like to know if my answers are correct: Disclaimer: We are allowed to keep our answers in formula form 1. Use the washer method to find the volume of the solid that is generated by rotating the plane region bounded by y=x^2 and y = 2-x^2 about the axis y=-1 My Work: [...

*January 16, 2017*

**math**

A factory kept increasing it's output by the same percentage every year .find the percentage if it is known that the output is doubled in the last two years.

*December 4, 2016*

**Maths**

Take a sub ex:eng Let the marks of 10 friends be 1,2,3,4,5,6,7,8,9,10. Mean=sum of all data ÷ no.of data. So' mean= (1+2+3+4+5+6+7+8+9+10) ÷ 10 . Solve it and you get mean of marks of your friends in English. Do this for other subjects.

*December 4, 2016*

**Graphing Linear Equations and Inequalities**

I have solved the TABLE manually. Thank you

*November 14, 2016*

**Graphing Linear Equations and Inequalities**

Fill in the t-table below for the equation. Then graph the line on the grid by selecting two of the points from your table. 3x+4y=-16 x y ?4 0 4

*November 14, 2016*

**Finite math**

Let S={1,2,3} be a sample space How many subsets of S contain the number 3? How many subsets of S contain either the number 2 or 3?

*November 3, 2016*

**science**

Determine the magnitude and direction of the horizontal resultant force on minibus A=1800N and B=800

*November 2, 2016*

**Physics**

A box of mass m = 59.0 kg (initially at rest) is pushed a distance d = 84.0 m across a rough warehouse floor by an applied force of FA = 204 N directed at an angle of 30.0° below the horizontal. The coefficient of kinetic friction between the floor and the box is 0.100. ...

*October 23, 2016*

**Statistics**

Of the 40 students in a gym class, 13 played volleyball, 12 ran track (4 of whom did a push up), and the remainder were absent. A.) What proportion of the class ran track? B.) What percentage played volleyball? C.) What percentage of the runners did a push up? D.) What ...

*August 25, 2016*

**Math**

Round 1.98 to the nearest tenth

*April 13, 2016*

**Math**

A wheel has a radius of 5ft. How many revolutions would it take for the wheel to roll 62.3 ft.? Round your answer to the nearest tenth.

*April 13, 2016*

**Maths, geography, life sciences and physical scien**

Identify three courses or study fields you are interested in following after grade 12.provide two reasons why you find this a suitable course for each choice

*March 6, 2016*

**Physics**

Block B in the figure weighs 739 N. The coefficient of static friction between block and table is 0.34; angle θ is 26°; assume that the cord between B and the knot is horizontal. Find the maximum weight of block A for which the system will be stationary.

*March 1, 2016*

**Life orientation**

Maths, geography,life science and physical science

*February 21, 2016*

**Comm Tech**

Z is right

*November 9, 2015*

**Chemistry**

The air was in a cylinder equipped with the piston absorbs 565 duels of heat and expands from an initial volume of .10 l to a final volume of .85 L against an external pressure of 1.0 ATM what is the change an internal energy of the air within the cylinder

*November 4, 2015*

**Maths**

How would you solve for x with an equation like this? 0.2x^3 - 2.84x^2 + 8.532x - 2.4 = 0

*October 7, 2015*

**Maths**

How would you solve for x with an equation like this? 0.2x^3 - 2.84x^2 + 8.532x - 2.4 = 0 I thought you would use the quadratic formula somehow, but I'm not sure

*October 6, 2015*

**Maths**

I = Alog10(t) + B I equals 8 when t is 3 I equals 50 when t is 8 t can't go past 200 A and B are constants Find A and B when I reaches 100

*September 16, 2015*

**Social Studies**

Science Nerd In training is 100% correct

*September 15, 2015*

**math**

what hhs

*September 10, 2015*

**pre-calculus**

which expression is equivalent to (sinx+1)(sinx-1)? A.) COS^2X B.) -COS^2X C.) COS^2X+1 D.) COS^2X-1 E.) -COS^2X+1

*July 27, 2015*

**pre-calculus**

find the exact value of sin 112.5 in fraction form

*July 27, 2015*

**pre-calculus**

which of the following is a solution to 3tan^3x=tanx? A.) 60 degrees B.) 120 degrees c.)150 degrees D.)240 degrees E.)300 degrees

*July 27, 2015*

**pre-calculus**

Which of the following is NOT a solution to cos^2x=3sin^2x? A.) 30 degrees B.) 60 degrees C.) 150 degrees D.)210 degrees E.)330 degrees

*July 27, 2015*

**pre-calculus**

What is the exact value of sin 225

*July 27, 2015*

**Pre-calc**

which expression completes the identity sin ucosv=?

*July 27, 2015*

**algebra**

I think that this is a bad website lol # notahater

*May 25, 2015*

**Science**

And also I did that it shows the process of kidney filtration instead of blood filtration

*March 18, 2015*

**Science**

Well I have web search a billion times but still thank you for helping

*March 18, 2015*

**Science**

So what do I do

*March 18, 2015*

**Science**

Explain the process of filtering blood

*March 18, 2015*

**Math**

3.455 round off to the nearest tenths

*March 8, 2015*

**Math**

And do I have to find the lateral surface area of the cylinder on number 2 or the total surface area

*March 4, 2015*

**Math**

I still don't get #3

*March 4, 2015*

**Math**

All of them. These were the only 3 question that I did not get on my homework packet.

*March 4, 2015*

**Math**

1. Mailey mother brought her a pet hamster. She is keeping Montey, the hamster, in a box with a length of 8.3 in.,a width of 6in.,and a height of 5,25in. Mailey plans on covering Montey's box with contact paper. How many square inches of contact paper is needed to ...

*March 4, 2015*

**Goverment**

I apologize of bothering you I got the answer and I apologize again

*March 2, 2015*

**Goverment**

What's that suppose to mean??

*March 2, 2015*

**Goverment**

You have to write whether it is bill of attainder or habeas corpus that would prevent the situation form happening

*March 2, 2015*

**Goverment**

I don't get it

*March 2, 2015*

**Goverment**

1. Read each situation. Write whether a bill of attainder, an ex post facto law, or a writ of habeas corpus woul prevent the situation from happening. A. ______________ shortly after video cameras were invented, a man evident aped a rock concrete. Years later this was declared...

*March 2, 2015*

**Math**

A roll of paper towels is 10 inches high and 2.5 inches in diameter. How many full squares inches of paper towel can fit on the roll in 15 rotation? * all I need is a formula of this question. Do I use lateral surface area formula or total surface area formula

*February 20, 2015*

**Science**

Q1. Why is the shape of the nerves important in the nervous system? Q2. Which structure is more complex, a tissue or an organ? How do you know?

*February 17, 2015*

**Science**

So is it a that is my guess by looking at the website you sended me Ms. Sue

*February 17, 2015*

**Science**

Which statement is true of an organ system? A. It supports all part of the organism. B. it is not necessary for the survival of the organism. C. One organ system can take over for another organ system. D. It has no connection with other organ system in the same organism.

*February 17, 2015*

**algebra**

Deposit is $15 and coat of hour is $4.20 so write an equation to represent the total cost y renting a tube for any number of hours x.

*February 12, 2015*

**Math**

I did but I still don't get it. Should I multiply the number in the parenthesis by the scale factor

*February 7, 2015*

**Math**

1.Quadrilateral GHJK has vertices at the following coordinates: G(-2,-6), H(-8,-8), J(-6,-2), and K(0,0), what would be the new vertices if the quadrilateral was dilated by the scale factor of 1.5? G':_________ H':_________ J':_________ K':_________ Could ...

*February 7, 2015*

**english**

In "In Just-," the poet uses the words "and bettyandisabel come dancing / from hop-scotch and jump-rope and / it's / spring" to create a mood of (Points : 5) boring routine. happy activity. peaceful days. hopeless dejection.

*January 26, 2015*

**Math**

Okay thankyou

*January 24, 2015*

**Math**

As my lenght

*January 24, 2015*

**Math**

Should I put 28

*January 24, 2015*

**Math**

Is it about 27 or 28.

*January 24, 2015*

**Math**

George is making a permanent for his favorite baseball team. He wants the short edge to be 14 inches and the height in the middle of the right triangle to be 24 inches. What is the length of diagonal side AB?

*January 24, 2015*

**Math**

Thanks

*January 24, 2015*

**Math**

I mean idon't get question #1

*January 24, 2015*

**Math**

And what about question2

*January 24, 2015*

**Math**

Q1.A tree was chopped by the Samuels family for the holidays. How tall was the tree originally if the piece they chopped down was 7feet tall, and fell 4 feet from the stump? Q2. Mr pratt's rake is leaning up against a wall. If the top of the rake hits the wall 5 feet above...

*January 24, 2015*

**Math**

Thank you

*January 24, 2015*

**Math**

Cannon wants to make a garden with a border of his yard. He has lumber in several different lengths. Which three lengths could be used to make a right triangle to fit into the corner of his yard? A. 4ft.,6ft.,10ft. B.7ft.,12ft.,15ft. C.5ft.,12ft.,13. D.10ft.,15ft.,20.

*January 24, 2015*

**Math**

Thanks

*January 24, 2015*

**Math**

how could you change one of the squares so that a right angle would be created

*January 24, 2015*

**Social studies**

I do not get the background and the problem they faced

*January 21, 2015*

**Social studies**

I need Sam Houston and Mirabeau Lamar -background -problems each of them faced -Native American -military spending -annexation I want them to be separate like contrast

*January 21, 2015*

**Science**

In the experiment water clock : what changes (independent variable) , how does it responds to the changes made(dependent variable), and what is being controlled (controlled variable). Pleas I really need this by today. And also my question for science fair is what part does ...

*January 19, 2015*

**Science/engineering**

Thanks alot

*January 18, 2015*

**Science/engineering**

What part does gravity play in the function of the water clock? Explain.

*January 18, 2015*

**Engineer**

I do get the but could maybe explain me the question In easy version (if so)

*January 14, 2015*

**Engineer**

Than you soooooooooooo much. You are a life saver. Thank you.

*January 14, 2015*

**Engineer**

What part does gravity play in the function of the water clock? .I kind of don't understand this question. All I need is a better understanding

*January 14, 2015*

**English**

3.) Adverb- differently, today 9.) Adverb- Sometimes. Verb- continued

*January 14, 2015*

**English**

I have to find the adverb in each sentence. Then I have to identify the verb it modifies. 1.)Native Americans originally developed lacrosse. Adverb- originally. Verb-developed. 2.)It was first played by the Iroquois. Adverb- first. Verb- played. 3.)It was played differently ...

*January 14, 2015*

**Engineering**

What part does gravity play in the function of the water clock? .I kind of don't understand this question. All I need is a better understanding

*January 13, 2015*

**Ceramics (help!!!)**

When creating clay forms what must be done with inside?? When applying glaze to a ceramics piece, it is important to wax the foot, or the bottom of the piece. What might happen if it isn't waxed??

*December 15, 2014*

**math 6**

A certain colony of bacteria triples in length every 10 minutes. It's length is now 1 millimeter. How long will it be in 40 minutes?

*December 15, 2014*

**Engineer/robotic**

How to tell by an example which is a robot and which is a nobot? My example is: security lights that turns on whenever someone walks by= nobots I need to know how do you know by an example which is which

*December 13, 2014*

**math**

Nvm, I think its 40.. I multiplied 2 10 and 2 and got 40 I don't think I have to round again so.

*December 6, 2014*

**math**

** multiply sorry..

*December 6, 2014*

**math**

Thank you so much. Do I have to add them up now? then round my answer? The answer choices are 60 54 40 36

*December 6, 2014*

**math**

Estimate the value of this expression by rounding each number to the nearest unit. (1.63)(9.95)(2.46) Plesse help..

*December 6, 2014*

**Survey of Mathematics**

Suppose a car rental agency gives the following choices: Option A: $30 per day plus 40 cents per mile Option B: flat $50 per day (unlimited miles) At what mileage are both rates the same if you rent the car for 3 days?

*December 4, 2014*

**math count warm up**

i still don't get it

*November 9, 2014*

**P.E**

Happiness, sadness, and fear are examples of blank emotions. A. Learned B. Primary C. Secondary D. Innate Is the answer A?

*September 9, 2014*

**Science!**

An oven is a technological system. Which of the following describes an input into this system? A. Setting the temperature B. Burning gas releases heat. C. A thermostat monitors the temperature and increases the gas flow when the temperature falls too low. D. A cake is baked Is...

*September 9, 2014*

**social studies**

How did the Protestant Reformation in Europe influence the settlement of North America? A. European settlers of different religions choose to establish new colonies in order to spread their faith and practice their beliefs. B. religious thinker John Calvin was a prominent ...

*September 8, 2014*

**Ed. Tech**

After creating a column heading and/or typing text within a column, what must you do to move text to the next column? A. Add a column break B. Select the next column and start typing C. Highlight the next column D. Change the page orientation Is the answer A?

*September 7, 2014*

**science**

I answered this already. Should you multiply the answer in letter b to 2? QUESTION: Phil Younghusband is a sensational striker of the Philippines National Football team Azkals. An avid fan of his claims that Phil can kick the football and give it an initial speed of 50 m/s. If...

*August 8, 2014*

**science**

Two students perform a simple experiment. One flicks a dime from the edge of a table. At the same instant, the other student drops a quarter from the same height. Ignoring air resistance, which coin strikes the floor first? Explain why. My own answer.. is this right? "in ...

*August 8, 2014*

**BUSINESS IT**

firstly write a program to accept the number of telephone calls made by a customer and the print out the rate in cents. secondly define a structure employee with name, category , salary, tax as a member. read the name category and salary of employee and calculate the tax as ...

*July 8, 2014*