Saturday

February 6, 2016
Total # Posts: 107

**Algebra 2**

How would I go about solving the following problem? There were different questions with matrices in them, but this one was different from the others. For the matrix product [ -5 , 3 ][ 6 , -3 ] p = [ 2 , -2 ][ 4 , -3 ], determine the expression that gives the value of p12. I ...
*October 12, 2015*

**Physics**

An object of 3.0kg is projected into the air at a 55 degree angle. It hits the ground 3.4s later. What is it's change in momentum while it's in the air?
*April 23, 2015*

**Pre-Cal**

Confirm that f and g are inverses by showing that f(g(x)) = x and g(f(x)) = x. f(x) = (x-7)/(x+3) and g(x) = (-3x-7)/(x-1) I got to the point where f(g(x)) is plugged in but how would I simplify it? (((-3x-7)/(x-1))-7)/(((-3x-7)/(x-1)+3)
*March 7, 2015*

**Science**

.100 KG of an unknown metal at 94°C is placed in 100 g of water at 10°C the final temperature of the metal and water are at 70°C what is the heat capacity of the unknown metal
*March 2, 2015*

**Science**

A piece of copper at 90°C is added 2.200 KG of water at 15°C inside an aluminum calorimeter that has a mass of .100 KG the final temperature of the copper water and calorimeter is 25°C what is the mass of the copper piece
*March 2, 2015*

**Science**

.100 KG piece of metal is heated to 480°C and then quickly place in .250 KG of water at 20°C which is contained in a .200 KG aluminum calorimeter the final temperature of the water metal and calorimeter is 36°C what is the specific heat to Capacity of the metal piece
*March 2, 2015*

**math**

20 tickets for 960 what is price of each ticket
*February 9, 2014*

**english**

Essay of What America means to you
*January 15, 2014*

**Math**

What is the unit rate of 16 32 equal to something over 14?
*December 16, 2013*

**math**

A school club consist of 30 male students and 13 female students. If 3 students are selected to represent the club in the student government, what is tge probability 2 will be male and 1 will be female? please help me
*November 24, 2013*

**statistic**

A computerstore has 75 printers of which 25 are laser printers and 50 are ink jet printers. If a group of 10 printers is chosen at random from the store, find the mean and variance of the number of ink jet printers.
*November 21, 2013*

**statistic**

3 statistics professors and 7 chemistry professors are available to be advisors.If each professor has an equal chance of being selected, what is the probability that both professors are cgemistry professors?
*November 13, 2013*

**statistic**

A coin is tossed 6 times. Find the probability that all 6 tosses are tails.
*November 13, 2013*

**science**

how dose climate affect weathering
*November 7, 2013*

**English **

The President sent the ambassador an invitation to the meeting. What is the correct sentence pattern?
*October 1, 2013*

**12th grade chemistry **

What is the structure for ethyl ethanamide? (Ie. c-c-N-c-c) ??? Thanks
*September 24, 2013*

**Physics**

How long is the sound wave if frequency is 320 Hz? Speed of sound =340 m/s
*May 15, 2013*

**Calculus**

A cylinder is inscribed in a right circular cone of height 5.5 and radius (at the base) equal to 2 . A) What are the dimensions of such a cylinder which has maximum volume? B) What is the radius? C) What is the height?
*April 27, 2013*

**physics**

You stand 5.2 meters away from a spherical mirror and your image forms 6.3 meters away on the front side of the mirror. What is your magnification?
*April 22, 2013*

**English**

Can somebody help me write my rough draft for a speech about how youth's and adult's should get the same penalty for crime?
*March 7, 2013*

**Physics**

A daredevil plans to bungee jump from a balloon 52.0 m above the ground. He will use a uniform elastic cord, tied to a harness around his body, to stop his fall at a point 15.0 m above the ground. Model his body as a particle and the cord as having negligible mass and obeying ...
*February 21, 2013*

**algebra**

How do you slide a point from (0,-2) to (3.5,5)?
*January 2, 2013*

**Math (Ms. Sue Please help!)**

i got 1200
*January 2, 2013*

**math**

thank u so much
*November 14, 2012*

**math**

thank u....jessica made 8/3 pounds of fudge. she gives 3/4 of what she has to will. A. how many pounds or how much of a pound of fudge does will get? B. how many pounds or how much of a pound of fudge she have left?
*November 14, 2012*

**math**

thank u can u help me with another one i get so confused with word problems
*November 14, 2012*

**math**

jessica made 8/3 pounds of fudge. she gives 3/4 pound of fudge to will. how many pounds or how much of a pound of fudge does she have left?
*November 14, 2012*

**math**

1,322 - if you are adding them up, that should be correct. if there are 12 tens, 10 tens equals 100 and the left over two 10s would equal 20. so thats 120+200+2=322 add the thousand and that equals 1,322.
*November 8, 2012*

**physics**

A newspaper carrier on delivery route travels 200.-m South-West and 300.-m West. What is the magnitude of the displacement?
*November 8, 2012*

**physics**

What is the magnitude of displacement for a person that walks 6.0-km North-East, 4.0-km East, and 6.0-km South?
*November 8, 2012*

**physics**

What is the magnitude of displacement for a person that walks 6.0-km North-East, 4.0-km East, and 6.0-km South?
*November 8, 2012*

**math**

During the playoffs you score 2 goals per game. By the end of the second playoff game you had 22 goals for the year. Find an equation that gives you the total number of goals scored for the year in terms of the number of playoff games. How many goals did you score before the ...
*November 6, 2012*

**Pre-Algebra**

Write the expression for a number used as a factor fifteen times being multiplied by the same number used as a factor ten times. Then, write the product as one power. Thanks, Michaela
*October 27, 2012*

**Pre-Algebra**

Write the expression for a number used as a factor fifteen times being multiplied by the same number used as a factor ten times. Then, write the product as one power. Thanks, Michaela
*October 26, 2012*

**Enviromental Science**

What effect could an uncontrollable grass carp population have on the energy pyramid of an lake environment?
*October 11, 2012*

**AP Physics**

If a ball rolls off a 4m high table at 7 m/s, how far horizontally from the bottom edge of the table will it fall?
*September 27, 2012*

**Algebra 2**

Solve each inequality. 0.75b < 3
*August 18, 2012*

**Chemistry**

What was the initial temperature of a sample pf silver that released 1207 joules when 150.0 grams of this metal were transferred to a cooler temperature of 60 degress Celsius?
*May 15, 2012*

**physics**

A ball is projected horizontally from the edge of a table that is 1.15 m high, and it strikes the floor at a point 1.70 m from the base of the table. (a) What is the initial speed of the ball? m/s (b) How high is the ball above the floor when its velocity vector makes a 45.0&...
*November 20, 2011*

**physics**

A ball is projected horizontally from the edge of a table that is 1.15 m high, and it strikes the floor at a point 1.70 m from the base of the table. (a) What is the initial speed of the ball? m/s (b) How high is the ball above the floor when its velocity vector makes a 45.0&...
*November 20, 2011*

**Law**

your right
*November 20, 2011*

**geometry**

do a proof and use some logic
*November 20, 2011*

**algebra**

list the intercepts and test for symmetry y = x^4 + 1 divided by 2x^5
*September 13, 2011*

**math**

Cigarette Use A study by the Partnership for a Drug-Free America indicated that, in 1998, 42% of teens in grades 7 through 12 had recently used cigarettes. A similar study in 2005 indicated that 22% of such teens had recently used cigarettes. (a) Write a linear equation that ...
*September 13, 2011*

**Geometry**

Write the negation of each statement. Every student at Hammond High School has a locker.
*August 26, 2011*

**Geometry**

Write the negation of each statement. Every student at Hammond High School has a locker.
*August 26, 2011*

**Geometry**

The measure of an angle's supplement is 76 less than the measure of the angle. Find the measure of the angle and its supplement.
*August 22, 2011*

**Geometry**

Point P is located on the segment between point A(1,4) and point D(7,13). The distance from A to P is twice the distance from P to D. What are the coordinates of point P?
*August 17, 2011*

**geometry**

An isosceles trapezoid with that bases 16 in and 34 in are inscribed in a circle such that one of the bases is the diameter. Find the area of the trapezoid.
*June 13, 2011*

**9th grade integrated algebra**

a tree casts a 25 foot shadow on a sunny day if the angle of elevation from the tip of the shadow to the top of the tree 32 degrees, what is the height of the tree to the nearest thenth of a foot?
*May 22, 2011*

**Physics**

I think its meant to be T (x,t) = 36 + 2 sin[2pie(0.029t - 9x) + 2pie]
*April 15, 2011*

**Physics**

A conduction heat wave is caused to pass through a metal bar of average temperature Tmean = 36 degrees altering its temperature sinusoidally with an amplitude of Ti=2 degrees. The equation which gives the temperature T(x.t) of the metal bar at any place x(in metres) inside it ...
*April 15, 2011*

**math**

One eighth of the children in a have brown eyes.if 6 children have brown eyes,how many children are there in the club
*February 14, 2011*

**English **

Please write this. Write simile for Valentine's?I give mine teacher.Be nice!
*February 11, 2011*

**algebra**

Factor these: 8x^3-125 81x^-625 18x^3+63x^2-50x-175 x^4-11x^2+18 I'm so lost!
*February 6, 2011*

**Literature**

what is the author's purpose in "The Sniper?
*January 26, 2011*

**English**

What is Protagonist in the sniper?
*January 26, 2011*

**Algebra 2**

George is 5 times as old as Heather. In 4 years he will be 3 times as old how old are both of them?
*January 17, 2011*

**Spanish crossword**

six letter spanish word for clue el chile original
*January 14, 2011*

**math**

Vanna Black pays money for vowels. If consonants are worth nothing and the following words are worth the following amounts, then find the value of each vowel. All vowels are worth the same amount in each but each vowel has a different value. Audacious=$260 Equivocation=$340 ...
*January 9, 2011*

**9th grade science**

what are some examples of mechanical mixtures
*January 4, 2011*

**geography**

who is a famous person from estonia????
*December 6, 2010*

**math**

3hours
*October 28, 2010*

**Ag.Science**

A married couple both of which are suspected of carring the gene foe Tay Sachs disease is considering having children.What advice would you give them?Give detaled resons for your advice including,but not limited to, possible genotype and phenotype ratios an combination....
*October 7, 2010*

**math**

24, 005 is greater than 8 999 because 24 005 has "2" in the 10 000's column, as 8 999 has no numbers in the 10 000's column, therefore it is worth more.
*September 27, 2010*

**science **

How can you identify hydrogen, oxygen and carbon dioxide by their chemical properties?
*September 27, 2010*

**Science- 8th grade**

help me whit unscaunble words
*June 3, 2010*

**drafting**

When you're forming the letter M, your second stroke should be
*May 22, 2010*

**physics**

A 10,000 kg frieight car is rolling along a track at 3.0 m/s. Calculate the time needed for a force of 1000 N to stop the car.
*April 22, 2010*

**Math**

dont no why
*April 20, 2010*

**reading**

what problems did amelia earhart have
*April 20, 2010*

**englísh**

the met office
*April 19, 2010*

**englísh**

what group have responiblity for weather forcasting
*April 19, 2010*

**english**

what group have responseblity for the weather forcast
*April 19, 2010*

**8th grade science**

A glass of water is placed on a very sensitive scale and several antacids tablets are dropped into the water. The weight of the glass and its contents is less after the tablets dissolve than before the tablets dissolved. Tell how matter is conserved ? Please help! I couldn'...
*March 16, 2010*

**social studies**

Who invented the ice box?
*March 12, 2010*

**Physics**

340m
*February 25, 2010*

**History**

What is territorial growth of United States during this period ?
*February 23, 2010*

**History**

What is account of the famous siege of the Alamo ?
*February 23, 2010*

**History**

What is trace the path that they took from New York to Salt Lake City ?
*February 23, 2010*

**English III**

How many hours per day / week will you work ? ( set schedule or flexible )
*February 20, 2010*

**8th Grade Social Studies**

What is trace the path that they took from New York to Salt Lake City ?
*November 15, 2009*

**social studies**

were there any weaknesses in the Constitution? Explain.
*November 8, 2009*

**social studies**

How did the two compromises reached during the Constitutional Convention satisfy competing groups?
*November 8, 2009*

**social studies**

In what ways did the Constitution strenghthen the central government?
*November 8, 2009*

**social studies**

Of the problems experienced by the Confederation Congress, which do you think was the most harmful? why?
*November 8, 2009*

**social studies**

what was the general attitude of foreign nations toward the new government of the United States? why?
*November 8, 2009*

**social studies**

Which document or institution do you think had the greatest influence on the development of the United States? Why?
*November 8, 2009*

**Social Studies**

What did the Confederation Congress do to strenghten the United States ?
*November 8, 2009*

**math **

1/3 (x-2)=5 u need to simplify this question i know x=17 but i don't know how to show this.
*October 20, 2009*

**science**

pictographs and theme maps are similar, which is more effective and for what reasons
*October 19, 2009*

**8th grade science**

the length of a piece of string is known to be exactly 9.84 cm. two students measured the string. student A used a ruler marked in centimeters and got a measurement of 10 cm. student B used a ruler marked in millimeters and centimeters and got a measurement of 9.8 cm. how ...
*October 2, 2009*

**8th grade - science**

i have the same problem as before,only 3 more questions about it. please help!! how precise is the ruler originally used to measure the string? explain. what is the length of the string to the nearest centimeter? what is the length of the string to the nearest tenth of a ...
*October 2, 2009*

**8th grade - science**

the length of a string is known to be exactly 9.84cm. two students measured the string. student A used a ruler marked in centimeters and got a measurement of 10 cm. student B used a ruler marked in millimeters and centimeters and got a measurement of 9.8 cm. which student'...
*October 2, 2009*

**Algebra 1 9th grade**

what does find the unit rate mean
*July 24, 2009*

**English**

expressions 1.i sugest that
*May 27, 2009*

**English**

expressions
*May 27, 2009*

**8th grade, history ?#3**

Why did the state of Georgia name a country after Nancy Hart/
*October 11, 2008*

**Math**

$3 for 5 containers of yogurt
*October 1, 2008*