Monday

January 16, 2017
Total # Posts: 226

**physics**

A brick is dropped (zero initial speed) from the roof of a building. The brick strikes the ground in 3.05 s. You may ignore air resistance, so the brick is in free fall. (a) How tall, in meters, is the building? (b) What is the magnitude of the brick's velocity just before...

*December 15, 2016*

**physics hw**

Determine the stopping distances for a car with an initial speed of 87 km/h and human reaction time of 2.0 s for the following accelerations. (a) a = -4.0 m/s2 (b) a = -8.0 m/s2

*December 15, 2016*

**physics**

A car starts from rest and travels for 5.0 s with a uniform acceleration of +2.5 m/s2. The driver then applies the brakes, causing a uniform negative acceleration of -3.0 m/s2. If the brakes are applied for 2.0 s, how fast is the car going at the end of the braking period, and...

*December 15, 2016*

**Math**

Thank you, Ms. Sue!

*November 10, 2016*

**Math**

I do not have an answer then. There is nothing in my 3rd grade math book to help me with this.

*November 10, 2016*

**Math**

would it be by visual estimating with rounding each number to the nearest 100?

*November 10, 2016*

**Math**

Justine has 162 red buttons, 98 blue buttons, and 284 buttons. She says she knows she has more than 500 buttons without adding. How can we explain that without adding?

*November 10, 2016*

**History**

How did geography shape civilizations in ancient India and China? A) they built cities away from areas prone to flooding and dangerous weather B) they grew along rivers and other bodies of water C) they emerged where mountains and other natural barriers offered protection*** D...

*October 26, 2016*

**Math**

What is an estimate of the solution of the equation 6n+3=2? Use a table ok so I know the answer is -1/6 but its asking to use a table? does anyone know what kind of table you use for this and how I'd use it? thank you soo much

*October 21, 2016*

**History**

How does the story of the pandavas in the mahabharata relate to aryan history? the story provides a sense of the battles between rival aryan tribes the story shows us the aryan concept of the ideal king the story reveals that the aryans believed that duty was very important ...

*October 18, 2016*

**History**

Dont worry bud, you most certainly are not alone.

*October 4, 2016*

**Physics**

A baseball of a mass 0.15 kg is thrown by a pitcher with a speed 20m/s. The bat is in contact with the ball for 0.01 second and gives it a speed of 30m/s in a direction straight towards the picther.find the value of the force and the impluse?

*October 3, 2016*

**Math**

Mary has 2/5 of a mile to walk harry needs to go 3/4 times as far as mary???

*September 20, 2016*

**physics**

a diver of mass 60kg stands on the end of a diving board of mass 30kg and length 2m. calculate the force exerted by the spring 30 cm away from the pivot. (i think that the force asked is 300N since W=mg (30×10)) hence, calculate the upward reaction force at the pivot and...

*September 2, 2016*

**math ASAP**

A rope was cut into two pieces in the ratio 7:9 if one was longer by 6cm,what are the lengths of the two pieces? a.21 cm and 27 cm b.24 cm and 30 cm c.26 cm and 32 cm d.31 cm and 37 cm Please help me how to answer this..its for my report thank you

*August 23, 2016*

**Math**

Ronnel spent 1/5 of his money to buy a food. He spent 1/4 of the remaining money to buy a magazine.If he had 360 pesos left in his wallet, how much money did he have at first?

*July 4, 2016*

**Pre-Cal: Plz help!**

you cannot simplify with negatives [(X^(2)+3)^(1/3)](-1)(x^(-2))+[1/3(x^(2)+3)^(-2/3)](2x)(x^(-1)) so the real question is [(X^2)+3)^(1/3)](-1)(x^(-2))+[1/3(x^(2)+3)^(-2/3)](2x)(x^(-1)) i hope this helped

*June 1, 2016*

**I need some one to help me out**

Try putting some dramatic comedy in the story.. about the blonde headed girl.. or about the janitor.. as like you have meaning in et.. idk ive never done anything like dat before XD

*June 1, 2016*

**English**

Sydney your a life saver Kissy faces

*May 2, 2016*

**Math**

5. Start time: 7:30 P.M. Elapsed time: ____________ End time: 9:29 P.M.

*April 21, 2016*

**Math**

4. Start time: ___________ Elapsed time: 3/4 hour End time: 10:30 A.M.

*April 21, 2016*

**Math**

3. 270 min = ____hr ____min

*April 21, 2016*

**Math**

2. 260 wk = ____yd

*April 21, 2016*

**Math**

1. 2 yd = ____d

*April 21, 2016*

**Math**

Ty needs to cut strips of wrapping paper that are each 9 inches wide. If Ty has 2 rolls of rapping paper that are each 15 feet long, how many 9- inch strips can he cut?

*April 21, 2016*

**Maths**

Boys*

*March 29, 2016*

**Maths**

The ratio of girls to bus in Year 8 at a particular school is 2:5. How many total students are there in Year 8 if there are 26 girls?

*March 29, 2016*

**Health**

Why dose the blood returning to the heart have very little oxygen in it

*March 14, 2016*

**Social Studies!!!!!!!!!!!**

how did the radical republican reconstruction plan affect life in south carolina? A. The law didn't give African Americans equal protection. B. The state regained the right to decide local matters. ***** C. White males who participated in the war were permitted to hold ...

*February 26, 2016*

**Math**

It is 6

*February 24, 2016*

**MATH**

Which ordered pairs are solutions to the equation? y = 3x – 4 A. (11, 5) and (2, 2) B. (5, 11) and (3, 2) C. (5, 11) and (2, 3) D. (5, 11) and (2, 2)

*February 23, 2016*

**Ela**

Story- Oregon trail 6. Why do the narrator and his companions MOST LIKELY not want to travel with the emigrant group they encounter on the prairie A. They do not enjoy listening to themselves B. They do not want the group to slow them down C. They will have a hard time keeping...

*February 21, 2016*

**ELA**

I did read the story

*February 21, 2016*

**ELA**

What do you mean?

*February 21, 2016*

**ELA**

Story- going west 4. What is the theme of the story A. Never take unnecessary risks B. Some dreams are worth the sacrifice C. Fathers and sons sometimes don't get along D. Life is better in the west than it is int the east 8. Why is going the Oregon trail such a big step ...

*February 21, 2016*

**ELA**

Story- a day to remember 12. How does the author use imagery in this passage?

*February 21, 2016*

**ELA**

Ok thank you

*February 21, 2016*

**ELA**

Story- clever daughter 5. Why does the magistrate use a riddle to decide the case? Use two details to support your answer

*February 21, 2016*

**Biology**

Oh my god thank u guys sooooo much :) I really appreciate it :)

*February 10, 2016*

**Biology**

How can I describe the following things about water in sketches or drawings? please give me ideas 1.High heat capacity 2.High heat of vaporization 3.Water is a solvent 4.Water molecules are cohesive and adhesive 5. Frozen water is less dense than liquid water 6. Water has a ...

*February 10, 2016*

**Science**

How can I describe the following things about water in sketches or drawings? please give me ideas 1.High heat capacity 2.High heat of vaporization 3.Water is a solvent 4.Water molecules are cohesive and adhesive 5. Frozen water is less dense than liquid water 6. Water has a ...

*February 10, 2016*

**Biology /science**

How can I describe the following things about water in sketches or drawings? please give me ideas 1.High heat capacity 2.High heat of vaporization 3.Water is a solvent 4.Water molecules are cohesive and adhesive 5. Frozen water is less dense than liquid water 6. Water has a ...

*February 10, 2016*

**Biology**

How can I describe the following things about water in sketches or drawings? please give me ideas 1.High heat capacity 2.High heat of vaporization 3.Water is a solvent 4.Water molecules are cohesive and adhesive 5. Frozen water is less dense than liquid water 6. Water has a ...

*February 9, 2016*

**Physics**

A rocket of mass 4.5 105 kg is in flight. Its thrust is directed at an angle of 47.5° above the horizontal and has a magnitude of 6.60 106 N. Find the magnitude and direction of the rockets acceleration. Give the direction as an angle above the horizontal.

*February 8, 2016*

**physics**

not sure

*February 5, 2016*

**physics**

Jessica stretches her arms out 0.6 m from the center of her body while holding a 2 kg mass in each hand. She then spins around on an ice rink at 1.1 m/s.

*February 5, 2016*

**Math**

a stadium has 75 rows starting with 200 seats in the first row. Each successive row has two additional seats. How many seats are in the 50th row?

*February 3, 2016*

**math**

1. Which figure best models 6^2? A. 6 x 6 grid - Personally, I think. B. 9 x 4 grid C. 5 x 5 grid D. 6 x 2 grid

*January 28, 2016*

**math**

1. Which figure best models 6^2? A. 6 x 6 grid B. 9 x 4 grid C. 5 x 5 grid D. 6 x 2 grid 2. Ned, Sara, and Allen went on a bird-watching trip to a national park. Ned identified a total of 8 birds. Sara identified 3 times the number of birds Ned identified. Allen identified 3 ...

*January 28, 2016*

**history**

I made 100% mee is right

*January 9, 2016*

**Math**

The scale of a certain map is 1cm to 25km.What is the actual distance represented by 2.80cm?

*December 28, 2015*

**Geometry**

You are given two dice to roll. One is black with six sides; the other is white with four sides. For a given roll, what is the probability that the values of the dice add to 99?

*December 3, 2015*

**Geomertry**

You are given two dice to roll. One is black with six sides; the other is white with four sides. For a given roll, what is the probability that the values of the dice add to 99?

*December 3, 2015*

**Tech**

1. B 2.D 3.A

*October 1, 2015*

**Science PLEASE HELP**

???????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????

*September 27, 2015*

**math**

What×what× what =50

*September 16, 2015*

**Choctaw Middle School**

Admission to a circus is $16 for adults and $10 for children write an expression to find the total cost of 3 adult tickets and four children's tickets then find the total cost

*September 1, 2015*

**Langugae**

tiger elephant tree bamboo butterfly lion bear kangroo panda

*August 31, 2015*

**Langugae**

The Jungle

*August 31, 2015*

**Langugae**

The Jungle

*August 31, 2015*

**Langugae**

How can I start a paragraph describing a scene I have observed? Any suggestions of scenes I can use?

*August 31, 2015*

**math**

90

*June 2, 2015*

**Math**

Please either explain or give them :) It does not matter to me.

*May 28, 2015*

**Math**

I have a practice math test and I am stuck on a few. Please help :-) 1) Write the number of permutations in factored form. Then simplify. How many different ways can you and four of your friends sit in the back of a limousine? A) 4!; 24 B) 4!; 120 C) 5!; 120 D) 5!; 720 2) ...

*May 28, 2015*

**Algebra**

Solve by elimination. -4x + 9y = 9 x - 3y = -6

*March 27, 2015*

**Algebra**

Solve the system by substitution. -5x + y = -3 3x - 8y = 24 I'm not sure which equation to choose as I begin to find the y value. Some assistance would be greatly appreciated! Thank you!

*March 26, 2015*

**Algebra (Math)**

Without graphing, name the ordered pair where the graphs of the two linear equations intersect. (Below is the system.) { x = 2 y = -3 Without graphing, name the ordered pair where the graphs of the two linear equationd intersect. (Below is the system.) { y = 2 x + 2y = 10 For ...

*March 25, 2015*

**Physics**

Hi guys, I was just wondering if I'm heading in the right direction with this question. Thank you so much in advance for your time!! A loudspeaker emits energy at the rate of 56W , spread in all directions. What is the intensity of sound 18m from the speaker? Working out (...

*March 10, 2015*

**math**

it saids 423+5123

*March 4, 2015*

**Art**

Two is right:) it interferes with their beliefs

*February 27, 2015*

**math**

USA=46gold+29silver+29bronze=104 China=38gold+27silver+23bronze=88 Great Britain=29gold+17silver+19bronze=65 104x88x65=594,880. i hope this helped.

*February 24, 2015*

**algebera**

I just got 5/5 100% 1.B 2.C 3.B 4.A 5.B

*February 10, 2015*

**Science**

A lead fishing weight with a mass of 57g absorbs 146 cal of heat. If its initial temperature is 48 C, what is its final temperature?

*January 26, 2015*

**Physics**

gtrgrt

*December 17, 2014*

**Chemistry**

What would you do in order to solve this question: "The enthalpy of combustion for benzoic acid is -3223.6kj/mol. Use the values of the standard enthalpies of formation of liquid water and CO2 to calculate standard enthalpy of formation of benzoic acid."

*November 29, 2014*

**AP Physics**

A honeybee with a mass of 0.175 g lands on one end of a popsicle stick (Active Example 9-2). After sitting at rest for a moment, the bee runs toward the other end with a velocity 1.47 cm/s relative to the still water. What is the speed of the 5.20 g stick relative to the water...

*November 26, 2014*

**AP Physics**

Two people are standing on a 2.2-m-long platform, one at each end. The platform floats parallel to the ground on a cushion of air, like a hovercraft. One person throws a 6.0-kg ball to the other, who catches it. The ball travels nearly horizontally. Excluding the ball, the ...

*November 26, 2014*

**AP Physics**

The lead female character in the movie Diamonds Are Forever is standing at the edge of an offshore oil rig. As she fires the gun, she is driven back over the edge and into the sea. Suppose the mass of a bullet is 0.013 kg, and its velocity is +725 m/s. Her mass (including the ...

*November 26, 2014*

**AP Physics**

A person stands in a stationary canoe and throws a 5.16-kg stone with a velocity of 7.75 m/s at an angle of 31.5° above the horizontal. The person and canoe have a combined mass of 105kg. Ignoring air resistance and effects of the water, find the horizontal recoil velocity...

*November 26, 2014*

**Physics**

In a running event, a sprinter does 4.1 ✕ 105 J of work and her internal energy decreases by 8.1 ✕ 105 J.

*November 23, 2014*

**alg 2 HELP**

Can someone help me show their work so I can see visual steps to work out these kinds of questions.

*November 12, 2014*

**alg 2**

The book asks to us the quadratic formula to solve for the equation. Can someone help with these examples: 1.) x^2+4x-2=0 2.) 2x^2 -5x-2=0 3.) x^2+2x=4x 4.) -6x^2 +3x+2=3 ______________________________________ There are more problems but I think I can figure it out once ...

*November 12, 2014*

**Algebra 2 HELP plz**

I need help asap. thx

*November 12, 2014*

**Algebra 2 HELP plz**

An object is launched upward with an initial velocity of 64 feet per second from a platform 80 feet high. 1.) Write a height model for the object. I wrote my model as .... h=-16t^2 +64t +80 2.) How many seconds until the maximum height is reached? I had 2 seconds as my answer ...

*November 12, 2014*

**college chemistry**

a 1.0kg sample of metal with a specific heat of 0.50KJ/Kg C is heated to 100.0C and then placed in a 50.0g sample of water at 20.0C . What is the final temperature of the metal and the water?

*September 30, 2014*

**Algebra III**

How do I determine the dimensions of the following matrix product? A 2x3 * B 3x5 ??

*September 6, 2014*

**algebra**

the distance s to school is 1/5 more than the distance c to the pool

*August 27, 2014*

**Chemistry**

Ethanol (C2H5OH) melts at -114 degrees Celsius. The enthalpy of fusion is 5.02 kj/mol. The specific heats of solid and liquid ethanol are 0.97 J/g-K, respectively. How much heat (kJ) is needed to convert 25.0 g of solid ethanol at -135 degrees Celsius to liquid ethanol at -50 ...

*May 4, 2014*

**Help!**

B. Is the correct answer :)

*April 30, 2014*

**Algebra**

DeSean throws a ball up with an initial vertical velocity of 30 feet per second from a platform that is at ground level. How long will the ball be in the air?

*April 4, 2014*

**dynamics of catering**

C.

*March 17, 2014*

**math**

well try to do 869 divided by 7

*March 11, 2014*

**Social Studies**

I just made a 5/5 100% 1.d 2.c 3.d 4.d 5.d

*February 13, 2014*

**Please help with Physics Quickly**

is this from k12

*January 27, 2014*

**math**

What are the answers to the middle school math with pizzazz book e page 29?

*December 4, 2013*

**Math**

1,1 and 4,4

*July 1, 2013*

**Math**

Can someone please help me with these two. What is the quotient (6-x)/(x^2+2x-3)÷(x^2-4x-12)/(x^2+4x+3) in simplified form? State any restrictions on the variable. Simplify the complex fraction ((x)/(x+2))/((1)/(x)+(1)/(x+2))

*May 30, 2013*

**nonlinear algebra**

thank you

*March 15, 2013*

**nonlinear algebra**

Use prime factorization to simplify the following square root leave as exact answer. How do you find the prime factors of this problem? 112 square root

*March 15, 2013*