# Posts by None

Total # Posts: 68

**MATH**

In an isosceles trapezoid the length of a diagonal is 25 cm and the length of an altitude is 15 cm. Find the area of the trapezoid.

*March 15, 2017*

**maths**

A school is organising a pen holder making competition using cardboard, if the pen holder is in the shape of a cylinder having base of diameter 28 cm and height 60 cm .If there are 35 competitors, then how much cardboard is required?

*February 16, 2017*

**Social studies**

It might be best to just use what you know...so yup

*November 21, 2016*

**Language arts**

What is the central idea of the selection

*September 29, 2016*

**algebra**

mrs. rays class has 18 girls and 9 boys. mr lis class has 16 girls and 8 boys. is the girl- boy ratio the same in each class. explain

*June 28, 2016*

**Math**

-1/9 + (-5/7) = A.) -3/8 B.) -52/63 C.) -6/7 D.) -61/63

*June 2, 2016*

**Language Arts**

is hero right

*March 17, 2016*

**social studies**

Here are the answers there right 1.D 2.B 3.B 4.D

*October 13, 2015*

**Math**

A 6-foot person standing 15 feet from a streetlight casts a 15-foot shadow. Two similar triangles are formed. One triangle is formed by the person and the shadow that the person casts. A second triangle is formed by the streetlight and the ground from the base of the ...

*September 24, 2015*

**Probability**

Might help for c: P(minXi<a) means 1-P(minXi>a) which means 1-P(allXi>a).

*May 25, 2015*

**Probability**

c = 0.098 wrong. anyone got maximum likelihood estimate of è based on a sequence of observations?

*May 25, 2015*

**painting**

what idea did the halos on the heads of Pichore's main subjects emphasize A) plentiful wisdom B) Exceptional power C) Divine connection D) extraordinary creativity

*March 19, 2015*

**math connexus**

correct answers are C A B B B B A B B A A D B D C C D C

*March 8, 2015*

**word problem**

Ieda bakes 73 cupcakes and accidentally drops 5 of them. She divides them equally into 13 containers for a bake sale for the school band. How many cupcakes does Ieda have left?

*March 3, 2015*

**algebra word problems**

thanx ms.sue :)

*March 3, 2015*

**algebra word problems**

The length of a rectangle is 6 inches longer than its width. The perimeter of the rectangle is 28 inches. If x represents the width of the rectangle, which equation can be used to find its value?

*March 3, 2015*

**maths**

a=2 b=−3 c=5 that's ur answer for a.b.c

*March 3, 2015*

**English**

something wrong well happen...

*March 2, 2015*

**Math**

deefined on all real numbers

*March 1, 2015*

**Algebra**

8x92y4327

*March 1, 2015*

**Phoenix**

bt−7b that's your answer

*March 1, 2015*

**physics**

a car has a mass of 820 kg. It starts from rest and travels 41 m in 3.0s. What is the net force applied to the car?

*February 1, 2015*

**Physics**

A ball is thrown horizontally from the top of a building 30.1 m high. The ball strikes the ground at a point 66.8 m from the base of the building. The acceleration of gravity is 9.8 m/s2 . Find the time the ball is in motion. Answer in units of s

*November 8, 2014*

**Algebra 2**

A player throws a ball up and toward a wall that is 17 feet high. The height h in feet of the ball after t seconds after it leaves the player's hand is modeled by h=-16t^2+25t+6. If the ball makes it to where the wall is, will it go over the wall or hit the wall?

*November 2, 2014*

**Maths Probability**

Might help for c: P(minXi<a) means 1-P(minXi>a) which means 1-P(allXi>a).

*May 20, 2014*

**Maths Probability**

anyone got maximum likelihood estimate of è based on a sequence of observations?

*May 20, 2014*

**Maths Probability**

c = 0.098 wrong.

*May 20, 2014*

**math (cant figure it out)**

1.C 2.B 3.D 4.A 5.B 6.D

*April 20, 2014*

**math**

.815

*January 22, 2014*

**Quantum Physics**

Suppose you are given an endless supply of qubits in the state (1/√2)|00>+(e^iϕ/√2)|10>. To estimate the phase angle ϕ, you run Fourier sampling (i.e. Hadamard on each qubit followed by a standard basis measurement) on this state repeatedly. After ...

*October 12, 2013*

**Dynamic**

A block of mass m is released from a height of R. The block slides down along the path ABC. At point C the block collides a spring of stiness k. (a) If the circular arc AB is frictionless and the coecient of kinetic friction between the block and surface BC is k...

*March 26, 2013*

**Physics**

An elevator's cable is cut causing the elevator to slide down thhe elevator shaft on the emergency brakes and wheels. Suppose that the mass of the elevator and passengers were 1500 kg, and the frictional force (wheels on tracks)was 9000N Draw a force diagram determine the ...

*December 9, 2012*

**American History**

Thanks for your answers..That helped me.

*October 1, 2012*

**MATH**

bored x 100000 paigeee

*March 12, 2012*

**Social Studies**

13

*February 17, 2012*

**Probability Please helpp**

962

*November 24, 2011*

**Math**

An amusement park charges $20 up front to rent a canoe. There is an additional charge of 150 cents per hour. Write an equation that relates the total amount of rent R in cents to time h in hours.

*October 11, 2011*

**Physics**

nerd no ans u only answer

*June 1, 2011*

**Statistics**

8/663

*April 15, 2011*

**Science**

Explain why the vacuum ball does not separate.

*March 13, 2011*

**7th grade science**

No

*February 17, 2011*

**math**

open toad wow, just wow

*January 18, 2011*

**Life Science (Desperate)**

A Swallow

*October 24, 2010*

**Statistics**

Is there a rule to figure out if this is a true or false statement? A sample size of 900 is not large enough to conclude that the sampling distribution of p is a normal distribution, when the estimate of the population proportion is .995.

*October 24, 2010*

**physics**

as a ball moves upwards in the air, by how much does its speed decrease each second?

*October 18, 2010*

**physics**

as a ball moves upwards in the air, by how much does its speed decrease each second?

*October 18, 2010*

**government**

banker.

*October 12, 2010*

**Statistics**

none

*September 15, 2010*

**language**

When you are interviewed, be relaxed and friendly. Write a thank-you note to the potential employer when the interview is over. The most effictive combination of sentences 10 and 11 would include which of the following groups of words? a)friendly;but write b)friendly;the write...

*May 11, 2010*

**language**

Familiarize oneself with the types of jobs most often available, with the various employment offices, and with the skills most in demand. what correction should be made? a)change Familiarize to Familiarized b)replace oneself with yourself c)insert a comma after various d)...

*May 11, 2010*

**language**

First, you should study the openings posted in the local newspapers-subscribe to all of them if possible, or read it at the public library. what correction should be made? a)replace you with one b)replace you with they c)insert a comma after openings d)replace it with them e)...

*May 11, 2010*

**Math - Algebra**

65

*March 2, 2010*

**Math**

If I have a square and I draw two lines across the middle that interestect what would be the interior angles of that intersection. I know the square itself is 360 degrees and the inner corners are all 45 degrees. I am not sure how to calculate the interior ones. ex Suppose ...

*February 1, 2010*

**french**

Replace ?’s with prepositions à, de, pour, etc. or some phrases do not need prepositions. Are these correct? Nous sommes sûrs ???de??? gagner auz prochaines elections. Je ferai ????? installer un lave-vaisselle cet été – no preposition ...

*January 26, 2010*

**geography**

what does todalsig stand for when doing maps

*January 14, 2010*

**english**

I am working on a crossword puzzle involvin northern climes and the question I have is, what is the foreclosure of academic studies (sometimes associated with a blizzard). The word or phrase is 14 letters long and the 5th letter is and o the 8th letter is an l and the 14th ...

*December 26, 2009*

**Planning**

Some traits that make you more dependable are- truth telling being a nice person doing things you are asked to do

*December 26, 2009*

**algebra**

x<-1

*November 30, 2009*

**math**

How would I find the deriviative of: (x^3/3) + (x^2/2) +x

*October 6, 2009*

**11th grade CHEMISTRY TITRATION LAB!**

can someone just come to my house and do my lab for me????

*December 14, 2008*

**english**

True beyond a reasonable doubt; it may be that consumption will drop in the future or that discovery of new reserves will increase, but as long as consumption at some level continues, eventually all the oil will be used up.

*April 14, 2008*

**social studies**

what are some historical key leaders of the philippines?

*September 26, 2007*

**math-alg**

b?

*September 26, 2007*

**history**

who is the doctor that is working on the first car that will drive in th sky Since this is not my area of expertise, I searched Google under the key words "flying car history" to get these possible sources: http://travel.howstuffworks.com/flying-car1.htm http://en....

*March 27, 2007*

**report**

oh no!!! i have a report on the Blarney castle in Ireland due tomorrow and i don't know how i should write it to make it sound good!!! what should i do to get it done?? i need a quick answer!!! help!!!!!!!! Here is the best site on the web on writing an essay...http://www....

*November 1, 2006*

**chemistry**

There has to be a precipitate of calcium nitrate, Ca(NO3)2, and sodium chloride, NaCl because when I clicked none, it came out wrong. Please help http://en.wikipedia.org/wiki/Solubility check the solubility table there. Nitrates, and chlorides are soluble.

*October 29, 2006*

**Chemistry**

What is the precipitate of calcium nitrate, Ca(NO3)2, and sodium chloride, NaCl?? Sodium nitrate and calcium chloride are both soluble in water.

*October 29, 2006*

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