# Posts by sam

Total # Posts: 5,165

**Physical education HELP PLS!!!!!!!!!**

I'm pretty sure it's D

*September 26, 2016*

**Maths**

Find the sum of the area of the ceiling and the floor of a room of 5m long, 4m wide and 2.5 high.

*September 26, 2016*

**maths need help**

Father is aged three times more than his son Ronti. After 8 years , he would be two and a half times of Ronti's age. After further 8 years, how many times would he be of Ronti's age?

*September 25, 2016*

**american government**

Lmao I feel like everyone here goes to connections academy

*September 24, 2016*

**Research Methods**

An infomercial asserts, “A study proves that Fat-Be-Gone, and it will work for you also.” What is wrong with this statement?

*September 22, 2016*

**trigonomentry using either exponential or complex**

give the expansion of sin^8@ as a series of cos@ plz help me i only know the normal way of doing that but i do not know how to apply complex number or exponential

*September 21, 2016*

**maths plz help**

give the expansion sin^8@ as a series of cos@ plz help me show working where @ means theta

*September 21, 2016*

**mathematics need help**

find the parametric equation for the line with slope 3 and y-intercept -2 where 't' is any real number?

*September 19, 2016*

**Math**

How would I solve x2+3x+1/4 into standard form? Would I multiply everything by 4 to cancel out the 1/4 so it will cancel it. Giving me 4x2+12+1 then factoring out

*September 16, 2016*

**maths need help**

correct to one significant figure how many digit are there in expansion of 2^(1999)

*September 15, 2016*

**Social studies**

are you right sara

*September 14, 2016*

**Chemistry**

At constant pressure, which of these systems do work on the surroundings? A(s)+B(s)-->C(g) 2A(g)+2B(g)--> 3C(g) A(g)+B(g)-->3C(g) 2A(g)+3B(g)-->4C(g) I've tried everything and I just don't understand what I'm doing wrong.

*September 13, 2016*

**History**

A fundamental theme of the Gettysburg address is A. The condemtion of unnecessary violence** B. The description of the impact of the civil war I got it narrowed down to these, I think it is A though

*September 12, 2016*

**History**

Can someone check this? The organizational patter of the Gettysburg Address is: A. problem and solution B. Compare and contrast C. Chronological D. Order of importance***

*September 12, 2016*

**SOCIAL STUDIES (CHECK ANSWERS ASAP)**

I think 1 and 2 are right but i'm not sure about 3

*September 12, 2016*

**Math HELP!**

The first thing you need to do is the parentheses so {(82-4)-4} (82-4)=78 78-4=72 Now that the parenthesis are done, divide 72 by 6. 72 divided by 6 is 12.

*September 12, 2016*

**ss**

I think the answer is B

*September 12, 2016*

**Chemistry**

How many milliliters of a 0.48 M HCl solution are needed to react completely with 7.4 g of zinc to form zinc(II) chloride? Answer in units of mL.

*September 10, 2016*

**Social Studies**

The Spanish colonists

*September 9, 2016*

**Social Studies**

What kind of relationship did colonists have with the Native Americans A. The two groups were equals B. Colonists ignored Native Americans C. Native American taught colonists religious rituals D. Colonists treated Native Americans poorly

*September 9, 2016*

**chem help!**

answer is C rate of forward reaction is always equal to rate of reverse reaction.

*September 9, 2016*

**Chemistry**

What changes of state are involved in this use of ethyl chloride? Select all that apply. Select all that apply. 1-liquid to gas 2-liquid to solid 3-gas to solid 4-liquid to solid 5-solid to liquid 6-solid to gas

*September 9, 2016*

**Social Studies**

What was the answer?

*September 7, 2016*

**Math**

5m^4/3(m^1/3*2n^1/8)

*September 6, 2016*

**Algebra**

A 116-cm board is cut into two pieces. If one piece is 40-cm shorter than the other, how long are the two pieces?

*September 4, 2016*

**Science**

MMR causes autism Help with the connection between MMR vaccine to autism pros and cons

*September 3, 2016*

**english**

A mile from end to end, yet as close to as a friend. A precious commodity, freely given. Found on the rich, poor,short and tall, but share among children most of all What am I?

*September 2, 2016*

**Pathway to Statistics**

a. What value of T represents the temperature that is 16°F below zero? b. A student says that T represents only positive numbers and zero, because there is no negative sign. Is the student correct? Explain

*September 1, 2016*

**math**

What number must be added to each of the numbers 1, 3, and 6 in order for the resulting numbers to form a geometric sequence?

*September 1, 2016*

**economic**

find the competitive price and quantity (as if the above marginal cost curve represents the market supply curve. given the market demand equation P=100-.1Q and TC=1000+20Q+.4Q^2

*August 30, 2016*

**algebra help**

Please help me with this and if you can explain please, okay so i have x-y=0 and x-2y=6 i have to solve by using substitution, at first i though i can replace x-2y=6 with x but then i notice that i can't can i put one of the equations into y=? Please help me with this ...

*August 27, 2016*

**algebra**

How do i do this okay i have x=17-4y and y=x-2 i have to solve by using substitution i don't get it do i replace x-2 for x then solve please help me

*August 23, 2016*

**geography**

Which of the thematic map would best show the location of climate zones?(qualtative map, cartograms, and flow- line maps)

*August 23, 2016*

**Social studies**

3) which of the following is an advantage of a presidential government? A) the president is elected independently of the legislature B) the president is part of the leg. Branch of government. C) a system of checks and balances increases legislative power. D) a system of checks...

*August 23, 2016*

**Geometry**

Three colinear points on the coordinate plane are R(x,y) S(x+8h, y+8k) and P(x+6h,y+6k0 Determine value of RP/SP and RP/RS?

*August 23, 2016*

**American Government**

Is it really b?? @mass

*August 19, 2016*

**Social studies**

Which of the following is an advantage of a presidential government? A) the president is elected independently of the legislature B) the president is part of the legislative branch of government C) A system of checks and balances increases legislative power. D) is there checks...

*August 16, 2016*

**Social Studies**

Is it D then?

*August 15, 2016*

**Calculus**

Use L'Hoplital's rule to find the limit. Lim x->0 (3-3cos(x))/(sin(4x))

*August 10, 2016*

**Calculus**

The velocity of an object is given by the velocity function v(t)=t/42. If the object is at the origin at time t=0, find the position at time t=20.

*August 10, 2016*

**math**

A shipment of 9 printers contains 4 that are defective. Find the probability that a sample of size 4, drawn from the 9, will not contain a defective printer . the probability is ?

*August 10, 2016*

**chemistry**

calculate the mass of potassium hydrogen phthalate needed to prepare a 0.1M solution in a 250 ml volumetric flask given that the molar mass of potassium hydrogen phthalate is 204,23g/mol

*August 3, 2016*

**Ap govt.**

Please check my answers and help me with those that are wrong. Which of the following forms of government most clearly bases power on the consent of the governed? A. aristocracy B. totalitarian regime C. Oligarchy D. Anarchy E. Republic I put A All of the following are factors...

*July 21, 2016*

**Grammar**

Every paragraph should begin with a topic sentence. Is this True.

*July 16, 2016*

**c programming**

write a program that computes tax and tip on a restaurant bill for a patron with rs.44.50 per meal charge.the tax should be 6.75 percent of the meal cost.the tip should be 15 percent of the total after adding the tax.display the meal cost,tax amount,tip amount and total bill ...

*July 12, 2016*

**english**

Properly format the following conversation, using dialogue tags and proper punctuation. In other words, make it look as it would in a short-short story: Jane: Hey, Mary. How are you? Mary: Good. You’ll never guess who I saw yesterday! Jane: Who? Wait—don’t tell ...

*July 7, 2016*

**Math**

Find the equation of a straight line that is parallel to y=4x+1 and passes through (7,5)

*July 3, 2016*

**math**

Mario's age is thrice the age of Martin. If the sum of their ages is 80 , how old are they?

*July 3, 2016*

**physics**

Any thoughts?

*June 30, 2016*

**physics**

A cyclist is attached to a rope which is looped over a pulley (disc of mass 10kg and radius 0.5m). The rope is then attached to a hanging block of mass 5kg. What force must the cyclist generate such that the block will move with an acceleration of 2.25 m/s2. Let’s make ...

*June 30, 2016*

**physics**

A cyclist is attached to a rope which is looped over a pulley (disc of mass 10kg and radius 0.5m). The rope is then attached to a hanging block of mass 5kg. What force must the cyclist generate such that the block will move with an acceleration of 2.25 m/s2. Let’s make ...

*June 30, 2016*

**Math**

If the 4th term of an arithmetic sequence is 24 and the 12th term is 56, whats the first term?

*June 29, 2016*

**math**

1. Marry works in a factory that prudes 1,000 telephones each day when 30 telephones were sampled it was found that 9 were defective estimate how Manny telephones are defective each day. 314 telephones 284 telephones 300 telephones*** 310 telephones 2. A ice cream shop offers ...

*June 9, 2016*

**Reading**

1. What effect does Mrs. Winterbottom’s decision have on Phoebe? A. Phoebe is humiliated by her mother’s decision to leave. B. Phoebe’s behavior becomes increasingly tense and ornery. C. Phoebe is withdrawn and refuses to socialize with her friends. D. Phoebe is...

*June 6, 2016*

**physic**

Which of the following statements incorrectly describes a scenario where the source of the sound waves and the person hearing the sound are remaining stationary?

*June 1, 2016*

**Government**

Which institution developed outside the limits of the written Constitution of the United States?

*June 1, 2016*

**physic**

Which of the following statements incorrectly describes a scenario where the source of the sound waves and the person hearing the sound are remaining stationary?

*June 1, 2016*

**Math**

How many 250ml cups can I fill up if I have 250 liters of water?

*May 31, 2016*

**Math**

Sam has two cubes. The ratio of the side length of the two cubes is 2:3. What is the ratio of the volume of the two cubes?

*May 31, 2016*

**Math**

John has closed square prism with a base of 36 square inches and a surface area of 360 square inches. Figure out its height?

*May 31, 2016*

**Math**

Tom's online class requires 10 tests, and he needs to score 70 or higher to pass the class. He took 9 tests so far and his average is 68. What is the lowest score on the last test that will let him pass the course?

*May 31, 2016*

**Math**

Tom's online class requires 10 tests, and he needs to score 70 or higher to pass the class. He took 9 tests so far and his average is 68. What is the lowest score on the last test that will let him pass the course?

*May 31, 2016*

**Math**

1. If you roll a number 52 times; how many times can you expect to roll a number 4? I do not understand Probability and a GEM test is coming up Thursday Please Help!!!!!!!!!!!!!!!!!!!!!!!!!!!!

*May 30, 2016*

**Math**

1. Which of the following sample spaces correctly lists all the possible outcomes for flipping a coin and spinning a four-colored spinner (red, blue, green, and yellow)? A. H-red, H-blue, H-green, H-yellow, T-yellow, T-green, T-blue, T-red ***** My Answer B. H-red, T-red, H- ...

*May 30, 2016*

**Mircro-Economics**

Prove The Profit Maximazatim Of The Consumer mu=p,according to cardinalist using mathematical derivation

*May 27, 2016*

**English**

Which of the following best defines props in drama? A. painted backdrops that can be used in several scenes B. movable objects used by actors onstage C. asides by actors to the audience D. tragic flaws The answer is:B

*May 24, 2016*

**English**

What does the script, or text, of a play contain? A. an essay by the playwright on the theme B. dialogue and stage directions C. the list of cast members for the first performance D. the soliloquies of the major characters My answer is B

*May 24, 2016*

**Focus on Countries: Latin America**

1. What are the causes of problems the Maya and other Native American groups face in Guatemala? How are people trying to solve these problems?****can you help me with this 2. Compare and contrast the economies of Chile and Venezuela.***and this

*May 23, 2016*

**Pharmacology**

Which of the following statement is false? a. Insulin syringes are only for measuring insulin dosage for administration b. Patient is to take 1.0 ml lorazepam elixir at bedtime, it is appropriate to administer the medication using 0.5 ml oral syringe by giving twice c. The 0.3...

*May 20, 2016*

**math**

Use the TVM Solver to calculate the amount you should make in monthly payments into an investment account if you want to have $1,000,000 in 60 years. The account pays 3.9% interest compunded monthly and you will make an intial investment of $25,000

*May 19, 2016*

**Artificial Intelligence**

Three prisoners, A, B, and C, are locked in their cells. It is common knowledge that one of them is to be executed the next day and the others are to be pardoned. Only the Governor knows which one will be executed. Prisoner A asks the guard a favor: "Please ask the ...

*May 19, 2016*

**History**

I can't find it. @ms.sue

*May 17, 2016*

**History**

In which state was brown v. board of education brought? a.) Kansas b.) Georgia c.) Kentucky d.) Mississippi

*May 17, 2016*

**Physics**

An engine rated at 5.0x10^4 watts exerts a constant force of 2.5x10^3 newtons on a vehicle.determine the average speed of the vehicle.

*May 10, 2016*

**calculus**

The volume V, in liters, of air in the lungs during a two-second respiratory cycle is approximated by the model V = 0.1729t + 0.1522t^2 − 0.0374t^3, where t is the time in seconds. Approximate the average volume of air in the lungs during one cycle. (Round your answer to...

*May 10, 2016*

**PHYSICS HELP Harmonic Motion**

A 32.0 kg block at rest on a horizontal frictionless table is connected to the wall via a spring with a spring constant k= 32.0 N/m. A 2.00E-2 kg bullet travelling with a speed of 5.500E+2 m/s embeds itself in the block. What is the amplitude of the resulting simple harmonic ...

*May 9, 2016*

**Math**

Candy bars sold for three weeks.. Sold 26 candy bars first week Second week sold 4 less than 2 times the number of candy bars sold during girst week Third week sold 6 more than 1.5 times thenumber sold in second week

*May 8, 2016*

**calculas 1**

Find the value(s) of c guaranteed by the Mean Value Theorem for Integrals for the function over the given interval. (Enter your answers as a comma-separated list.) f(x) = x^9, [0, 9]

*May 7, 2016*

**calculas 1**

1 to 2 5 interval

*May 7, 2016*

**calculas 1**

Use upper and lower sums to approximate the area of the region using the given number of subintervals (of equal width). (Round your answers to three decimal places.) y = 7/x number of interval between are 5 upper sum= lower sum=

*May 7, 2016*

**Calculus**

Use the Midpoint Rule with n = 4 to approximate the area of the region bounded by the graph of the function and the x-axis over the given interval. f(x) = x^2 + 4x, [0, 4]

*May 7, 2016*

**calculas**

Use left and right endpoints and the given number of rectangles to find two approximations of the area of the region between the graph of the function and the x-axis over the given interval. (Round your answers to four decimal places.) g(x) = 7 sin x, [0, π], 6 rectangles...

*May 7, 2016*

**calculas 1**

A child places n cubic building blocks in a row to form the base of a triangular design (see figure). Each successive row contains two fewer blocks than the preceding row. Find a formula for the number of blocks N used in the design. (Hint: The number of building blocks in the...

*May 7, 2016*

**Stat**

An SRS of size n is taken from a large population whose distribution of income is extremely right-skewed and the mean income is calculated. Which of the following statements is false? a) When n > 30, the sampling distribution of is approximately normal. b) When n increases...

*May 6, 2016*

**math-**

(-2, -16) (-1 , -6) (0 , 4) (1 , 14) (2 , 24)

*May 5, 2016*

**Statistics**

An unprepared student is about to take his first test of the semester. He is told that his test will be composed of 20 multiple choice questions, each with 4 possible answers, only one of which is correct. a.What is the probability that the unprepared student randomly guesses ...

*May 3, 2016*

**Art**

It was C

*May 3, 2016*

**Art**

1. Why would knowledge of mathematics be useful to an architect? A Help the architect to determine the best building site B Help the architect to determine the best building materials C Help the architect to determine measurements of building materials D Help the architect to ...

*May 3, 2016*

**calculus upward@miss reiny**

upward...

*May 2, 2016*

**calculus too hard help**

if y=x^x^x^x... dy/dx=? plz show working thanks got no ideal at all

*May 2, 2016*

**Physics**

If an electron has a total energy of 5.6 MeV, how would I find the kinetic energy and momentum??

*May 1, 2016*

**Plane trigonometry**

Hi, could you help me solve the one cycle graph and the 5 points of this equation: Y=2sin pi(x+1/2)+1 thank you in advance!

*May 1, 2016*

**Algebra**

"The table shows how far Object 1 traveled as a function of time. ___________________________________ Time (sec)| Distance Traveled (ft) x | y ___________________________________ 2 | 18 4 | 36 6 | 54 8 | 72 ___________________________________ The equation shows how far ...

*April 29, 2016*

**Algebra**

"Explain how you can tell the function f(x) = |x - 5| is not linear by using points on its graph. Make sure to include in your answer the Points you used to determine that the function is not linear." Help please?

*April 29, 2016*

**Data Analysis**

A) An insurance company wants to estimate the proportion of people unsatisfied with their new telephone help service. A survey of 200 callers revealed 45 were unsatisfied with the service. Construct by hand a 95% confidence interval for the proportion of unsatisfied customers...

*April 28, 2016*

**Data Analysis**

A manufacturing company wishes to estimate the number of items that its workforce can produce on average each hour now that they have a new machine. The factory examined the records for a random sample of 8 hours over the past month. The hourly production rates for these 8 ...

*April 28, 2016*

**Algebra**

In an expedition to seize his enemy's elephants, a king marched 2 yojanas the first day. Say, intelligent calculator, with what increasing rate of daily march did he proceed, since he reached his foe's city, a distance of 80 yojanas, in a week?

*April 27, 2016*

**algebra**

if 1, 2, 7 and 20, respectively, are added to the first terms of an arithmetic progression, a geometric progression of four terms is obtained. find the first term and common difference of the arithmetic progression the answers are both 3 .. but i don't know the solution, ...

*April 27, 2016*

**Literature**

This quote from “I Hear America Singing” by Walt Whitman shows the poem is what kind? A. Lyric B. Haiku C. Couplet D. Sonnet

*April 26, 2016*

**Physics**

How much heat is required to change a 35.8 g ice cube from ice at -12.7°C to water at 45°C? (if necessary, use cice=2090 J/kg°C and csteam= 2010 J/kg°C)How much heat is required to change a 35.8 g ice cube from ice at -12.7°C to steam at 113°C?

*April 25, 2016*