Thursday
August 25, 2016

Posts by SAM

Total # Posts: 4,881

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

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

Grammer
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

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

Physics
The latent heat of vaporization of H2O at body temperature (37.0°C) is 2.41E+6 J/kg. To cool the body of a 76.7 kg jogger [average specific heat capacity = 3540 J/(kg*°C)] by 1.90°C, how many kilograms of water in the form of sweat have to be evaporated?
April 25, 2016

Physics
A 0.300 kg iron horseshoe that is initially at 550°C is dropped into a bucket containing 19.4 kg of water at 21.1°C. What is the final equilibrium temperature (in °C)? Neglect any heat transfer to or from the surroundings. Do not enter units. I'm taking (...
April 25, 2016

life orientation
six ways in which human rights violation influences individuals
April 25, 2016

Data Analysis
A firm produces batteries that have a lifetime which is normally distributed with a mean of 360 minutes and a standard deviation of 30 minutes. The firm needs to keep an eye on the production process to ensure that everything is working properly and that batteries are not ...
April 23, 2016

Chemistry
Consider the following reaction. 2 CO (g) + O2 (g) −→ 2 CO2 (g) What is most likely true about the entropy change for this reaction? Delta Srxn < 0 or Delta Srxn > 0. Why is it Delta Srxn < 0 ?
April 22, 2016

Physics
If the average gauge pressure in the artery is 1.41E+4 Pa, what must be the minimum height, h of the bag in order to infuse glucose into the artery? Assume that the specific gravity of the solution is 1.04.
April 20, 2016

Math
-4+12 /(-3) 10+3(-2)=
April 19, 2016

AP Chemistry
Consider the following reaction: PbCl2 + 2 NaOH → Pb(OH)2 + 2 NaCl What would be the major species observed floating in solution after one mole of PbCl2 and 2 moles of NaOH are mixed in aqueous solution? 1. Na+ ions, Cl− ions and H+ ions 2. Pb2+ ions, Cl− ...
April 18, 2016

us history
For some reason I though it was A at first but i agree with D
April 15, 2016

English composition 1
Read “Letter from Birmingham Jail” by Martin Luther King, Jr. 2. Write the introduction for an essay that critically analyzes “Letter from Birmingham Jail” for the presence of persuasive techniques. 3. Label the major parts of your introduction: a. Hook b. ...
April 15, 2016

math
@ms.sue
April 13, 2016

math
a vase is in the shape of a cone that is 10 inches tall with a diameter of 3 inches. what is the greatest amount of water the vase can hold a.) 23.56 in.^3 b.) 54.72 in.^3 c.) 70.65 in.^3 d.) 94.25 in.^3
April 13, 2016

Personal Finance
Wait it's B
April 13, 2016

Personal Finance
a?
April 13, 2016

Personal Finance
One aspect of financial planning is to make sure you maintain adequate insurance coverage for your needs. Which aspect of financial planning does this deal with? A. Retirement and Estate Planning B. Spending C. Managing Risk D. Investing Would it be D?
April 13, 2016

math
A can of soup is in the shape of a cylinder with a radius of 3.2 centimeters and a height of 10.2 centimeters. The label covers the entire lateral surface of the can. What is the approximate area of the label? a.) 32.64 cm^2 b.) 64.34 cm^2 c.) 205.08 cm^2 d.) 269.42 cm^2
April 13, 2016

calculus
Use a(t) = -32 ft/sec2 as the acceleration due to gravity. (Neglect air resistance.) A ball is thrown vertically upward from a height of 4 feet with an initial velocity of 79 feet per second. How high will the ball go? (Round your answer to two decimal places.)
April 11, 2016

Analytical chemistry
an 0.5031 gram sample of iron ore is determined through redox titration using K2Cr2O7. The sample was dissolved in HCl and all the iron was converted to the 2+ state. Titration to the endpoint required 24.34 mL of 0.01887 mol/L K2Cr2O7. Calculate the amount of Fe2O3 as a ...
April 9, 2016

Math
Sally is filling glass containers in the shape of cylinders with different colors of sand. Each cylinder has a radius of 4 inches and a height of 8inches. Sally has 1,000 cubic inches of sand. How many containers can she fill completely.? plz I really need help on this question.
April 8, 2016

ela connections academy lesson4 unit 3
What class
April 8, 2016

calculus
Use a(t) = -32 ft/sec2 as the acceleration due to gravity. (Neglect air resistance.) A ball is thrown vertically upward from a height of 4 feet with an initial velocity of 79 feet per second. How high will the ball go? (Round your answer to two decimal places.)
April 7, 2016

calculus
The maker of an automobile advertises that it takes 15 seconds to accelerate from 15 kilometers per hour to 70 kilometers per hour. Assuming constant acceleration, (a) The distance the car travels during the 15 seconds (Round your answer to two decimal places.)
April 7, 2016

calculus
Use a(t) = -32 ft/sec2 as the acceleration due to gravity. (Neglect air resistance.) A ball is thrown vertically upward from a height of 4 feet with an initial velocity of 79 feet per second. How high will the ball go? (Round your answer to two decimal places.)
April 7, 2016

calculus
Consider a particle moving along the x-axis where x(t) is the position of the particle at time t, x'(t) is its velocity, and x''(t) is its acceleration. A particle moves along the x-axis at a velocity of v(t) = 5/√t, t > 0. At time t = 1, its position is x...
April 7, 2016

calculus
Use a(t) = −9.8 meters per second per second as the acceleration due to gravity. (Neglect air resistance.) A canyon is 2300 meters deep at its deepest point. A rock is dropped from the rim above this point. Write the height of the rock as a function of time t in seconds...
April 7, 2016

calculus
Use a(t) = -9.8 meters per second per second as the acceleration due to gravity. (Neglect air resistance.) A baseball is thrown upward from a height of 3 meters with an initial velocity of 7 meters per second. Determine its maximum height. (Round your answer to two decimal ...
April 7, 2016

calculus
Find the particular solution that satisfies the differential equation and the initial condition. f ''(x) = x^2, f '(0) = 8, f(0) = 8 f (x) = ?
April 7, 2016

Pre cal
sin55=12/b what is b
April 7, 2016

Pre cal
A right triangle sides is 7 and 4 find the hypotenuse
April 7, 2016

Stats
8.0235% of the employees of the Acme Tire store are enrolled in a 401k at the store. If the company has 600 employees, what is the probability that less than 40 employees are entered in the 401k.
April 6, 2016

Stats
8.0235% of the employees of the Acme Tire store are enrolled in a 401k at the store. If the company has 600 employees, what is the probability that less than 40 employees are entered in the 401k.
April 6, 2016

calculus
Find the length and width of a rectangle with maximum area that has a perimeter of (7P) units. units (smaller value) units (larger value)
April 6, 2016

calculus
Find the absolute extrema of the function (if any exist) on each interval. (If an answer does not exist, enter DNE.) f(x) = square root of (25 − x^2) (a) [−5, 5] minimum (x, y) = (smaller x-value) (x, y) = (larger x-value) maximum (x, y) =
April 5, 2016

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