Thursday

September 3, 2015
Total # Posts: 237

**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*

**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*

**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 dont 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*

**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*

**Language Arts (CHECK ANSWERS)**

Please help :( I'm running out of time !
*May 28, 2014*

**Language Arts (CHECK ANSWERS)**

1. You already know that Anansi is a trickster. What does this tell you about the outcome of the folktale? (1 point) A: Everything will turn out the best possible way for all the characters. B: Everything will turn out the best possible way for Anansi. C: Anansi’s ...
*May 28, 2014*

**math**

Equation : 16 - 4 = ? Answer : 12 Good luck !
*May 27, 2014*

**SS**

Yea 1)D 2)A 3)B 4)A There correct, just did it :)
*May 12, 2014*

**Social Studies**

Shes wrong, i did them and got 4/10
*April 24, 2014*

**South America**

is this true or false To accurately label exact locations on a map, geographers go to that specific location answers.
*January 23, 2014*

**How do I subtract this?**

I'm sorry I had to pester you with a problem like that, but my algebra is extremely weak. I understand it now though. Thank you very much! :)
*October 3, 2013*

**How do I subtract this?**

How would I subtract this? [(8)/(x+h+8)] - [(8)/(x+8)]
*October 3, 2013*

**Derivatives**

Find the derivatives of: 1. H(x)= sin2xcos2x The answer given is 2cos4x. My question is, how in the world did they get that!? Shouldn't the answer at least contain the sin function, either negative or positive seeing as it's the derivative of cos? Also, which rules are...
*October 3, 2013*

**science**

What is science is the question and btw Im in grade 8 so could u plz give an answer according to that like explain what is science first and then wht r its branches plzzz!!!
*September 4, 2013*

**Algebra 1 **

Write 8 more than T as an algebraic expression
*August 16, 2013*

**Eng**

well, B is wrong.
*June 9, 2013*

**chemistry**

Nickel (II)
*April 11, 2013*

**chemistry**

you heat 4.31 grams of a nickel 2 phosphate hydrate. You heat to a constant mass of 3.09 grams. What is the formula of this hydrate?
*April 11, 2013*

**MATH**

I have a test in about an hour and a half and am having some difficulty on the review the teacher gave us to help us prepare. Any help would be great! *Convert the polar equation to a rectangular equation. rsin(theta - Pi/4) =5 -The answer is given as y= x+5sq.rt.2 Also, I ...
*April 4, 2013*

**math**

2340000
*February 19, 2013*

**AP Physics B**

A soap bubble of index of refraction 1.43 strongly reflects both the red and the green components of white light. What minimum film thickness allows this to happen? (In air,the wavelength of red light is 703 nm, of green light 502.143 nm.) Answer in units of nm
*February 19, 2013*

**life orientation**

State media onwership
*February 17, 2013*

**AP Physics**

Momentum One of those Civil War cannons is fired. The Cannon has a mass of 873kg It fires a 35.0kg cannon ball at a velocity of 145 m/s at an elevation angle of 35.0 degrees. The length of the barrel is 2.10m. (a) What is the recoil velocity of the cannon?(b)What is the KE of ...
*January 8, 2013*

**chemistry,science**

thnk u
*December 22, 2012*

**chemistry,science**

how were volcanoes formed ?
*December 22, 2012*

**Math**

Find all real solution of the equation sin^2x = -2+2cosx
*December 4, 2012*

**Math**

Find all solution of the trigonometric equation 3cosθ-√3=0 for θ in degrees.
*December 4, 2012*

**AP Physics B**

A penny of mass 3.1g rests on a small 28.2g block supported by a spinning disk of radius 12cm. The coefficients of friction between the block and disk are .73 (static) and .64 (kinetic) while those for the penny and black are .6 (static) and .45 (kinetic). What is the maximum ...
*November 9, 2012*

**AP Physics B**

An air puck of mass 0.102 kg is tied to a string and allowed to revolve in a circle of radius 1.06 m on a horizontal, frictionless table. The other end of the string passes through a hole in the center of the table and a mass of 0.78 kg is tied to it. The suspended mass ...
*November 9, 2012*

**chem**

How many milliliters of 4.80 M HCl are required to react with 110 mL of 1.48 M Al(OH)3? Al(OH)3(s) + 3HCl(aq)to AlCl3(aq) + 3H2O(aq)
*November 8, 2012*

**math**

-.25
*November 1, 2012*

**AP Physics B**

A 0.408 kg puck, initially at rest on a horizontal, frictionless surface, is struck by a 0.0886 kg puck moving initially along the x axis with a speed of 3.14 m/s. After the collision, the 0.0886 kg puck has a speed of 2.14 m/s at an angle of 38◦ to the positive x axis. ...
*November 1, 2012*

**AP Physics B**

A 2189 kg car moving east at 9.73 m/s collides with a 3285 kg car moving north. The cars stick together and move as a unit after the collision, at an angle of 35.7◦ north of east and at a speed of 4.79 m/s. What was the speed of the 3285 kg car before the collision? ...
*November 1, 2012*

**AP Physics B**

A gadget of mass 17.85 kg ﬂoats in space without motion. Because of some internal malfunction, the gadget violently breaks up into 3 fragments ﬂying away from each other. The ﬁrst fragment has mass m1 = 4.12 kg and speed v1 = 3.57 m/s while the second ...
*November 1, 2012*

**english**

sorry..... venture or turmoil, or fluctuate or the three left
*October 30, 2012*

**english**

instead of hiring a lawyer, the defendant will__________ to plead her own case in court.
*October 30, 2012*

**TRIG **

An airplane flying at 550 miles per hour has a bearing of 53°. After flying for 2.5 hours, how far north and how far east will the plane have traveled from its point of departure? I'm having a REALLY hard time with this one. I don't know what I'm doing wrong. ...
*October 16, 2012*

**TRIG.**

From a point 50 feet in front of a church, the angles of elevation to the base of the steeple and the top of the steeple are 35° and 47° 20', respectively. Find the height of the steeple. I missed class this day and have no idea how to go about this problem. I'...
*October 15, 2012*