Questions Asked on
October 7, 2016

Physics urgent pleasw
Stone is thrown vertically downward with an inital speed of 2.0m/s from height of 10m, determine time it takes to reach the bottom. Thanks!
asked by Mike 
maths
dy/dx+2y=sinx, The answer is:1/5(2sinx+cosx)+cwith e to the power (2x)
asked by shalini 
Physics
If you were in an elevator what should the acceleration of the elevator be in order for you to feel what you would weigh on the martian surface(remember that acceleration is a vector, so it has both magnitude and direction)? (weight on earth=130 lbs,
asked by Evette 
maths
dy/dx+2y=sinx, The answer is:1/5(2sinx+cosx)+cwith e to the power (2x)
asked by shall 
maths
dy/dx+2y=sinx, The answer is:1/5(2sinx+cosx)+ce^2x
asked by shall 
VERY URGENT, HELP!
Consider a simple economy consisting of only four firms. Firm A, a mining enterprise, extracts iron ore. Firm B, a Steelmaker, produces steel sheets. Firm C, a carmaker, makes automobile while Firm D produces automobile tires. In 2016, firm A extracts
asked by Linda 
Math
What prime number am I? • I have three prime factors • each prime factor is a different number • I am a multiple of 10 • I am less than 50 Please help answer this question??
asked by Punch 
math
The Holy Father sent a courier from Rome to Venice, commanding him that he should reach Venice in 7 days. The most illustrious Signoria of Venice also sent another courier to Rome, who should reach Rome in 9 days. And from Rome to Venice is 250 miles. It
asked by Scott 
Math
The table shows which school subjects are favored by a group of students predict the number of students out of 400 that would pick science as their favorite subject.
asked by Araceli 
Geometry
1) What are the converse, inverse, and contrapositive of the statement? Which statements are true? If the figure is a rectangle with sides 2 cm and 3 cm, then it has a perimeter of 10cm. My A: the statement is not true. 2) What are the hypothesis and the
asked by Sam 
Chemistry
Check answers? 1) Why did J.J. Thomson reason that electrons must be a part of the atoms of all elements? A) Cathode rays are negatively charged particles**** B) Cathode rays can be deflected by magnets C) An electron is 2000 times lighter than a hydrogen
asked by Mary 
Econ URGENT HELP!
Consider a simple economy consisting of only four firms. Firm A, a mining enterprise, extracts iron ore. Firm B, a Steelmaker, produces steel sheets. Firm C, a carmaker, makes automobile while Firm D produces automobile tires. In 2016, firm A extracts
asked by Linda 
maths
A container contains 3 red and black balls. If one ball is selected at random from the container, what is the probability that it is black
asked by neeraj 
Math
Find the product and explain the process and reasoning 0.67 x 0.3 Please help I don't know how I could explain this :(
asked by John 
Statistics
It is not surprising that babies with low birth weights are at risk for developmental difficulties, but extraoridinarily large babies also face a higher than noraml risk of medical problems. In the United States the average full term single birth baby has
asked by Kelsi 
math
The number of pounds of apples a cannery can process and the processing cost are P(h) = 375h and C(n) = 0.35n + 1000 where P(h) is the number of pounds of apples that can be processed in h hours and C(n) is the cost of processing n pounds of apples. Use
asked by stacy 
English
1. Summarize the reading text by using more than 10 sentences. 2. Summarize the reading text, using more than 10 sentences. 3,Summarize the reading text using more than 10 sentences. 4. Summarize the reading text with more than 10 sentences. 5.
asked by rfvv 
Literature review
I need directions/steps on how to start writing this paper. This is the rubric I need to follow in order to complete this paper: Literature review: On subsidized hosing, public housing. Define section 8 housing, section 202 housing, section 811 housing.
asked by Amy 
Math  Calculus 1
Approximate the following value using derivatives (without a calculator) (1.1)^4  (1.1)^2 I only know how to do linear approximation when using square roots. How do I do this type of problem?
asked by Jamie 
Calculus  Related Rates
Suppose that you are watching a spaceship take off. You are 100 meters from the launch pad, and you measure the angle made by the rocket and the ground to be increasing at a rate of (d)(theta)/dt = 0.1 radians per second. What is the velocity of the rocket
asked by James 
Maths
Rice is 40% costlier than wheat. By what per cent is wheat cheaper than rice?
asked by Anonymous 
Language
What word means the opposite of offensive Affable Zealous Acclivitous Intimate Synergetic
asked by Don 
Math
Number of employees in Kitchen is 2 Salary is $52,000 Avg. cost of employee 26 If the avg. cost per salaried employee increase by $4,000 in the kitchen department, what is the new average cost per employee in the department
asked by Don 
Math  Calculus 1
Approximate using derivatives. (Must show work using derivatives!) Do not use a calculator: (1.1)^4  (1.1)^2
asked by James 
Math
Bakery salary $24,000 Kitchen salary $26,000 Catering salary $30,000 Bar salary $30,000 Server/host $25,000 What department has the largest difference between the highest and lowest employee
asked by Don 
Math
Which department staffing cost the largest proportion of the total staffing budget? Bakery $88,000 Kitchen $ 322,000 Catering $96,000 Bar $120,000 Sever/Host $470,000
asked by Nancy 
physics
A plane flies at 150m/s at 35 degrees east of north. It encounters a wind from the west blowing 26 m/s.
asked by JD 
physics
A plane flies at 150m/s at 35 degrees east of north. It encounters a wind from the west blowing 26 m/s. What is the true course of the plane? (speed and direction)
asked by JD 
english
report on world wildlife federation
asked by Thirumalai 
Science
A chemical element with the symbol X has the electron arrangement 2,8,6 (electron configuration 1s2 2s2 2p6 3s2 3p4). Which chemical species is this chemical element most likely to form?
asked by Blsh 
Math
Jody mows 1/8 of a lawn. He also mows another 1/3 and 1/6 of the lawn. What part of the lawn does he still have to mow?
asked by Fe 
math
1.Which ordered pair is the solution to y = 2x + 10? a(2, 2) b.(3, 4) c.(3, 4) d.(1, 6)
asked by STUDENT 
CCA MATH
.Solve the following equation: m – 8 = 14 a.m = 6 b.m = 7 c.m = 26 d.m = 4
asked by help 
math
Solve the following equation: 4/7 x = 16 A)x = 42 B)x = 28 C)x = 23 D)x = 24 Solve the following equation. 4s+13+s=2s+406 A)s = 12 B)s = 10 C)s = no solution D)s = 7 You train for the Olympics 120 minutes each day. How many days have you trained when
asked by .. 
Physics
The figure shows an Atwood machine (a wheel suspended from the ceiling with two masses connected by a string) with m1 = 1.0 kg and m2 = 1.1 kg. If m2 descends a distance 3m from rest in 3.6 seconds. 1) what is the strength of the gravitational field, g, at
asked by Anonymous 
Physics
An object with a weight of 150 N hangs from the ceiling as shown in the figure. 1) Find the tension in each string. q1 = 60 degree and q2 = 45 degree
asked by Anonymous 
Physics
Three equal masses are suspended from a frictionless, massless pulley system, as shown. Once the system has reached equilibrium, 1) what angles will the strings make with respect to the horizontal
asked by Anonymous 
precalc
Identify the center, intercepts, and domain, and range of the equation x^2/4+y^2/9=1
asked by lisa 
Econ VERY URGENT, HELP!
Consider a simple economy consisting of only four firms. Firm A, a mining enterprise, extracts iron ore. Firm B, a Steelmaker, produces steel sheets. Firm C, a carmaker, makes automobile while Firm D produces automobile tires. In 2016, firm A extracts
asked by Linda 
Math
how do I find out what 30% of 80 is?
asked by AlmostStolen 
Math
2 kitchen employees combine make $52000 per year. If they both get a $4,000 increase what is the new average cost per employee?
asked by Nancy 
Physics
The density of copper is 9.8×10^3 and the density of gold is1.9×10^4. When the two wires of these two metals are held under the same tension the speed in the gold wire is found to be half of that of the copper. What is the ratio of the diameters of the
asked by Frank 
Math
how do I find 40% of 33? DONT GIVE ME THE ANSWER IF I WANTED THAT I COULD GOOGLE IT I just want the process thx
asked by Aralyn 
Physics
two campers in a national park hike from their cabin to the same spot on a lake each taking a different path. the total distance traveled along path 1 is 7.5 km and that along path 2 is 8.2 km. what is the final displacement of each camper?
asked by Jay 
chemistry
Molten Al2O3 is reduced by electrolysis at low potentials and high currents. If 1.5 x 10^4 amperes of current is passed through molten Al2O3 for 8.0 hours, what mass of Al is produced? Assume 100% current efficiency? Mdep = ([1.5 x 10^ x 28800s ]/ 96500) x
asked by jess 
Mathematics of growth rate! Need help!
Suppose that your child is born this year, and that you would like to set aside enough money now so that your child will have $3000000 at retirement in 20 years. A) if return of return on your money averages 5% per year over the next 70 years, how much do
asked by Help! 
Biochemistry
Match the protein to the descriptions. The protein to consider here is alphakeratin. There may be several answers for some of these. Select all that apply. => No partial credit. contains intrachain hydrogen bonds contains heptad repeats contains Glycine
asked by Jimm 
english
write a report on world wildlife federation
asked by Thirumalai 
chemistry
How many grams silver (Ag) is added to 13 grams gold to produce 85% gold (Au) alloy? Can someone please give me the derived formula to be used? I had managed to solve it though I'm not quite sure if it's correct. i got 73.67g Ag, can someone please correct
asked by Epinephrine 
American government
What is the difference between a regular session of Congress and a special session of Congress? A) A regular session has all the members, while a special session only has a few members B) A regular session is for making laws, while a special session if for
asked by Nashaia 
physics
An 8000 kg elevator is supported by a steel cable. If the acceleration of the elevator is 1.4 m/s^2 upward, then find the tension in the cable.
asked by sam 
physics
A semi circular rail of horizontal diameter AB=2R is placed in a vertical plane. Two particles S1 and S2 of respective masses m1 and m2 (m1
asked by vicky 
Chemistry
H3C6H5O7(aq) + 3NaHCO3(aq)Na3C6H5O7(aq) + 3H2O(i) + 3CO2. NaHCO3 = 2.00g H3C6H5O7 = 0.76 CO2 = 0.07g 1.Determine which reactant is the limiting reactant . describe your reasoning. 2. Calculate the theoretical yield of carbon dioxide in the plastic 3.
asked by Zaza 
Physics
An asteroid has a mass of 3.66 x 10^20 kg and a radius of 8.2 x 10^5 m. If a 25 kg mass is dropped fro 10 m above the "ground" of the asteroid, how long will it take the mass to fall to the ground?
asked by sam 
Social Studies
Increased suffrage and the development of new political parties in the early 1800s indicate which of the following? A. Expansion of democracy B. Restriction of democracy C. Increase in the power of individual states D. Decrease in the power of individual
asked by FluttershyK 
Tx History
What was the cause of the Texas Revolution? A. Mexico wanted to expand their territory. B. Texas wanted to adopt the ways of the Mexican government. C. Mexican citizens were opposed to settlers being in Texas.*** D. Mexicans confronted Texans pushing for
asked by Ashlie 
Algebra
A farmer wants to divide a rectangular plot into five equal strips using 648 feet of fence. (A) draw a labeled diagram of the plot. (B) find the dimensions of the plot that give the maximum area and the maximum area. (C) state why the area is a maximum
asked by Anonymous 
math
How do we do integral (5cos4x cos8x dx)
asked by angy 
Geometry
The vertices of ∆ABC are A (2,5), B(2,4), and C(5, 3). If ∆ABC is reflected across the line y=2 to produce the image ∆A’B’C, find the coordinates of the vertex A’ if ∆ABC is reflected across the line x= 2.
asked by Colleen 
Organic Chemistry
How many constitutional isomers have the molecular formula C3H6S ?
asked by Nevaeh 
physics
An airplane accelerates down a runway at 3.33 m/s2 for 35.3 s until is finally lifts off the ground. Determine the distance traveled before takeoff.
asked by Anonymous 
Science
What conflicts between humans and robots might occur in the future? Plzz Help!
asked by Emily 
Chem
1a) Calculate the molar concentration of the KIO3 solution provided. KIO3 2.15g/L we used 10 mL in the experiment.
asked by Sherry 
Math
The description of a tv based on the diagonal length. If the height of a tv is 10 inches and the width is 7 inches what is the approximate diagonal length in inches? 17 12•• 9 7
asked by Tillus 
Core World History
I Choose two themes that would be appropriate for thematic time lines of important events from prehistory to A.D. 1600. The rise and fall of empires all over the world, and scientific discoveries and inventions, what are 5 events for each them that I've
asked by Lenae 
Health And Physical Education
Identify a common defense mechanism that protects you from an uncomfortable? A.reaction formation B.abstinence C.mature behaviors D.acceptance I would like to know if anyone knew the answer and if so can you please tell me my parents are getting on to me
asked by Margaret 
Social studies
2. What were some reasons that the Iroquois joined forces with the British? Select two answers. A) they were enemies with some other tribes who were fighting with the French B) the British charged lower prices than than the French and therefore trusted
asked by Tillus 
Core World History
What are 5 events for the rise and fall of the empires all around the world from prehistory to A.D. 1600?
asked by Lenae 
social studies
2.) Why were Northern States in favor of Hamilton's protective tariff? *The tariff protected North from paying any additional fees when exporting their goods. *The tariff allowed manufactures in the North to charge higher prices for their products. *The
asked by 123bruh 
History
6. What effect did the capture of fort Ticonderoga have on the fighting in Boston between the American colonists and the British? A) the British left Boston when they saw the forts military weapons positioned on Dorchester heights**** B) the British
asked by Cat 
English
SOMEONE PLEASE CHECK MY ANSWERS!!!!!!!!!(YOU DON'T HAVE TO TELL ME WHAT THE RIGHT ANSWER IS JUST IF ITS WRONG OR NOT)THEY ARE MARKED WITH ** 1. In the play Crossroads: A Sad Vaudeville, the use of stage directions better helps the reader to observe the
asked by 123 
math
if you got 12 yds of fabric and each skirt require 7/8 how many skirts can be made
asked by smith 
Physics
Abody is released from a height of 20m above the ground. Find it's height above the ground when it's velocity is 10m/s
asked by Yawe Akram 
Math
Customers have two options when renting video games from a rental store. Plan A requires a $5 monthly fee and a $1 per video rental. Plan B requires $8 monthly fee and $0.75 per video rental. How many video rentals would be required each months for the
asked by Brooklyn 
Chemistry
What is happening on a chemical basis, to make them the way they're. 1) magnesium 2)calcium 3)potassium 4)sodium
asked by Holfbrincl 
Math
How do I arrange these in order from the smallest to greatest 5/6, 7/12, 5/8, 23/48
asked by Michael 
Social Studies
How did the Supreme Court decision in Worcester V. Georgia and the Indian Removal Aact lead to removal and resettlement of Native American Groups? I am completely lost on this question can someone please help.
asked by FluttershyK 
Geometry
A 12ftby15ft rectangular swimming pool has a 3ftwidenoslip surface around it. What is the outer perimeter of the noslip surface? 78 ft 78 ft^2 198 ft 198 ft^2 I've already completed it, and know the answer is 78 ft, but I don't quite understand
asked by Anonymous 
U.S history
Who were the generals in the battles? Did any of them fight in later wars? this is for the French and Indian war.
asked by ....... 
History
7. What was significant about the role of the green mountain boys? Select three answers. A) they launched a surprise attack on fort Ticonderoga and defeated the British*** B) they assisted Washington and his troops in launching a suprise attack in
asked by Cat 
Physics
Why does the force of gravity change the speed of a satellite in an elliptical orbit? 1)The force of gravity is always tangent to the satellite motion. 2)Gravity speeds up the satellite as it moves away and slows it on its return. 3)The force of gravity is
asked by dave 
physics
The concept of pressure involves both force and volume. force and area. area and volume
asked by dave 
Physics
Which two factors mainly affect ocean tides on Earth? Check two answers. Earth's revolution about both the Moon and the Sun the Moon the Sun the pull of distant planets
asked by dave 
History 9
11. What was the impact of Minutemen during the revolutionary war? A) they were able to resist British forces using the same tactics that British soldiers used B) they set up signals to warn the regular american army whenever British soldiers were
asked by Cat 
Physics
Which of the following is an element? H2O Hydrogen Carbon dioxide A supernova
asked by dave 
algebra
how many meters equal to 2kilometre
asked by Anonymous 
Physics
How can gravity be simulated in an orbiting space station? 1)aped like a bicycle wheel 2)Spin two pods connected by a cable 3)Rotate a cylinder to create centrifugal force as viewed by a person on the inside of the curved outer wall 4)All of the above
asked by dave 
Physics
Why does the force of gravity change the speed of a satellite in an elliptical orbit? 1) The force of gravity is always tangent to the satellite motion. 2)Gravity speeds up the satellite as it moves away and slows it on its return. 3)The force of gravity
asked by dave 
P.E
Progression the ___________of increase in frequency, intensity, time, or all three progression fast onset slow onset long onset
asked by Britney 
Physics
Why does the force of gravity change the speed of a satellite in an elliptical orbit? 1)The force of gravity is always tangent to the satellite motion. 2)Gravity speeds up the satellite as it moves away and slows it on its return. 3)The force of gravity is
asked by dave 
Physics
A 145kg object and a 445kg object are separated by 3.90 m. (a) Find the magnitude of the net gravitational force exerted by these objects on a 34.0kg object placed midway between them. (N) (b) At what position (other than an infinitely remote one) can
asked by Jack 
Physics
A ball of mass m 0.285 kg swings in a vertical circular path on a string L = 0.810 m long as in the figure below. a) If its speed is 5.25 m/s at the top of the circle, what is the tension in the string there? 6.89N (is the answer) b)If the string breaks
asked by Jack 
Statistics
Find the minimum sample size n needed to estimate u for the given values of c, s, & E. c=0.98, s=6.5, & E=1.?
asked by Makaila 
Math
At a local music store CDs cost 11.99including tax is the number of CDs purchased proportional to the cost of the CDs
asked by Dan 
math
the ratio of boys to girls in a senior class is 5:3. if 9/10 of the boys may graduate and all the girls may or may not graduate, what is the maximum part of the senior class that may graduate?
asked by rose 
Statistics
A doctor want to estimate the HDL cholesterol of all 20 to 29 year old females. how many subjects are needed to estimate the HDL cholesterol within 3 points with 99% confindence assuming s=10.5. Suppose the doctor would be content with 90% confidence.
asked by Makaila 
PIMACOMMUNITY COLLEG
WRITE THE NET IONIC EQUATION INCLUDING the phases for the reaction of the Hclo2+Naoh>H2o+Naclo2
asked by SAAD 
Math
Explain how estimating the quotient helps you place the first digit in the quotient of a division problem
asked by Anonymous 
MS. SUE HELP Chemistry
Check answers? 1) Why did J.J. Thomson reason that electrons must be a part of the atoms of all elements? A) Cathode rays are negatively charged particles**** B) Cathode rays can be deflected by magnets C) An electron is 2000 times lighter than a hydrogen
asked by Mary 
History
What major advantage did the colonists have over the British during the Revolutionary War? A. colonists had more supplies than the British B. colonists had European support C. colonists had a better knowledge of the land than the British •• D.
asked by Kassidy 
Geometry
1) What are the converse, inverse, and contrapositive of the statement? Which statements are true? If the figure is a rectangle with sides 2 cm and 3 cm, then it has a perimeter of 10cm. My A: the statement is not true. 2) What are the hypothesis and the
asked by Mary 
Math
Sam and Dan shares some money in the ratio 5:2. Dan received sh 30 less than Sam. How much money did Dan get?
asked by Kgk 
Calculus
find the extremum of f(x,y) subject to the given constraint, and state wether it is a maximum or minimum. 4y^229x^2; 3x+y=21
asked by Ron 
History
Image of the dirty massacre american colonists What impact do you think seeing the image have on the American colonists? By confirming the rumors of illegal actions taken by bostonians the engraving would weaken the rebels cause By confirming the reaction
asked by Kassidy 
math
show how you can make a ten to find the sum 9+7=
asked by daniely 
Physics (PLEASE HELP PRONTO)
A cart with a mass of 5.35 kg is placed on a frictionless ramp at an angle of 14.2. The cart is released and rolls down the ramp. Find the acceleration.
asked by Anon 
Precalculus
For this problem, we will use the formula for position of an object. y=1/2at^2+vot+ho, where t is time in seconds, a is acceleration in meters per second squared (in this case gravity so 9.8 m/s2), v0 is the initial velocity in meters per second, and h0
asked by Mary 
Calculus  Approximation
Use linear approximation, i.e. the tangent line, to approximate cubed root { 1.1 }. The equation of the tangent line to f(x) at x = 1 can be written in the form y = mx+b. Show your work. Do not use a calculator.
asked by James 
Algebra
[y + 4] less than 1 5 less than y less than 3 3 less than y less than 5***** 4 less than y less than 1 1 less than y less than 4 Please help me
asked by lost 
MATH
What is the estimated perimeter of an ellipse if the major axis has a length of 15 ft and the minor axis has a length of 7.5 ft?
asked by KELLY 
math answer check
14. Knowing that you use 245 KWH 7 a.m. – 7 p.m. and 165 KWH 7 p.m. – 7 a.m., answer the following questions using the chart below: Constant Usage $0.05324/KWH Daytimer (Most usage between 7 a.m. – 7 p.m.) As long as most power used is 7 a.m. – 7
asked by Anonymous 
maths
The cost of a gift is shared amongst 3 kids. Keith paid €480 more than jack. Keith paid €220 more than the total amount paid by Jack and tim. Jack paid 80 more than tim. How much did the present cost?
asked by helga 
english
vancouver canda is in british columbia is a complete subject
asked by melany 
social studis
In this lesson, you learned that government officials represent citizens at the state and local levels as well as at the national level.
asked by eric 
Drivers ED
You are driving on a two lane street and you take notice that there is a broken white line between the two lanes. Ahead of you there is a car in the other lane coming toward you. Which is the most likely problem in this situation? A: All traffic should be
asked by Marylyn 
physics
A 3 kg weight is placed upon a spring so that it hangs downward 12 centimeters. How far would the spring stretch if a 4 kg weight were placed upon it?
asked by Malik Allahham 
Math
You are designing a rectangular dog pen off the back of your house. The House will form one side of the dog pen. The pen is to have an area of 800 ft.² but you want to minimize the amount of fencing that you need for the three sides of the pen not against
asked by Vanessa 
Chemistry
sorry i will rephrase the question. what is the chemistry behind these elements to give them these qualities and make them react the way they do with like water and such. 1)magnesium 2)calcium 3)potassium 4)sodium
asked by Holfbrincl 
PreAlgebra
• It does not matter if one of the similar triangles has been _________. If the angles are ____________, they can be in different ______________ but still have the same ______________. Fill in the blank :/
asked by ... 
Math
Tuku spent 1/3 of his mpney on school uniforms, 1/4 on books, 2/3 og the remainder on food and saved the rest. What total fraction of his money did he save and spend on books?
asked by Kgk 
Government
What is a definition of citizenship? having been born in a country being a full and equal member of a nation having pledged to respect and support a governments's values****** fulfilling all the responsibilities and having all the rights of living in a
asked by Lexi 
American Government
Check answers? 1) What is the main difference between the formal and informal qualifications for the House of Representatives? A) Formal qualifications are outlined in the Constitution**** B) Formal qualifications do not have to be followed C) Informal
asked by Mary 
Drivers ED
When turning left from a four lane one way street the best position would be? A:the far left lane*** B:the far right lane C:the second lane from the left D:the second lane from the right Thank you!
asked by Marylyn 
Physics
If a scooter has an acceleration of 2.5m/s^2 , how fast is the scooter going into the acceleration
asked by Anonymous 
Anonymous
How did the Hun invasion weaken the Roman empire? A. The Visigoths moved to Carthage B. Attila conquered Rome C. The Canals overran Adrianople D. The Huns pushed Germanic peoples into Roman territory. Is the answer D?
asked by History 
Math please help
At 8am Lanah heads out for her morning jog going north. Ten minutes later, Jasmine heads our for her jog, also going north. ( assume they both started at the same spot). Lanaahs joggins speed is 25 ft/ minute more than jasmines . At 8:30 am,Lannah is
asked by skylar 
Math please help
Colombian coffee beans cost $5.50/lb while Peruvian coffee beans cost $4.25/lb. We want to mix the beans together so as to produce a 40 lb bag costing $4.60/ lb. How many pounds of each type of beans shouold be used ? Please help and show work
asked by valentina 
Trig
Just confused. Given tan(A) = 2 and A is in Quadrant I, find sin(2A). A. 0 B. 1 C. 1/2 D. 4/5
asked by Iris 
statistics
A STAT 200 instructor is interested in whether there is any variation in the final exam grades between her two classes Data collected from the two classes are as follows: Her null hypothesis and alternative hypothesis are: (a) Determine the test statistic.
asked by chris 
Statistics
Can anyone help me with this? Which of the following statements is true about a 99% confidence interval? a. The interval contains 99% of the population. b. The probability that the population mean is in the interval is 99%. c. The interval is wider than a
asked by Angel 
Trig
Given tan(A) = 2 and A is in Quadrant I, find cos(2A). A. 0 B. 1 C. 1/2 D. 3/5
asked by Iris 
Trig
Given tan(A) = 2 and A is in Quadrant I, find tan(2A). A. 1/3 B. 2/3 C. 4/3 D. 2/3
asked by Sade 
Algebra
1. Use the Distributive Property to simplify the expression. (1)(4c) 2. Use the Distributive Property to simplify the expression. 4(2x 4) 3. Use the Distributive Property to simplify the expression. (10 + 4 y) 1/2 4. To which subsets of real numbers
asked by PolkaDot 
STATISTICS
A certain disease has an incidence rate of 0.6%. If the false negative rate is 4% and the false positive rate is 4%, compute the probability that a person who tests positive actually has the disease
asked by Anonymous 
Physics
At the same distance the noise of a sandblaster is 13 dB louder than a power drill. This means the the displacement amplitude of the sound waves from the sandblaster is how many times greater than that of the power drill if both sounds have the same
asked by Ck 
ProbabilityCards
As shown above, a classic deck of cards is made up of 52 cards, 26 are black, 26 are red. Each color is split into two suits of 13 cards each (clubs and spades are black and hearts and diamonds are red). Each suit is split into 13 individual cards (Ace,
asked by peter 
math
A plant grows 1 2/5 inches every week. How long will it take the plant to grow 4 4/5 inches?
asked by Evelyn 
Physical Education
I'm looking for Practice Methods for P.E. class. What is the best way to improve endurance and Muscular strength? I need some webpage （reference) Please help me
asked by CC 
Math
A walking area around a pool is going to be frfinished with a nonslip surface. If it costs $17 per square foot to install what is the total cost? Inner rectangle is length 20 ft by width 10 ft. Outer dimensions of walkway are 14 length by 10ft. I have no
asked by Marty 
Math
If the bicycle tires have a diameter of 22 inches, how far will the bike travel for each tire rotation?
asked by Delisha williams 
Math
What is the remainder when 10 to the 99 th power is divided by 9
asked by Anonymous 
Math
A car and a truck leave the park at the same time, heading in opposite directions. when they are 350 miles apart, the car has gone 70 miles further than the truck. How far has the car traveled? Can someone please help me I am horrible in word problems
asked by valentina 
Math
Help me find the area of the lawn which is 45meter long and 30meter wide ,there is a path,5meter wide ang also area of lawn and path,the area of path,and the ratio of the area of the path to the area of the lawn.
asked by Jhuean Vincent Bautista 
Math
2√3x power3+3√3y power3+5√53√30xy
asked by Aditya 
physics
which ball has more energy a 5 kg ball rolling at 4 m/s or a 6 kg ball rolling at 3 m/s?
asked by thomas 
Math
Sinh 2x=8 coshx
asked by Addin 
Maths
Rationalise the denominator for√153/√103
asked by Abhi