Saturday
September 24, 2016

Posts by anonymous

Total # Posts: 99,905

Math
hi i need help for a math question. The question is about geometric sequence, it asking about " in 2004, the turbines generated 326 MW of wind energy, and it is projected that the amount will be 10,000 MW per year by 2010. If this growth were modeled by geometric sequence...
September 13, 2016

Math pre algebra please help
Solve the equation 1/2x -5 +2/3x=7/6+4
September 13, 2016

Science-Physics
Why is it easier to float in the Dead sea than the Caribbean sea?
September 13, 2016

Math
132:89
September 13, 2016

Physics
An astronaut exerts a 190-N force pushing a beam into place on the International Space Station. The beam accelerates at 0.14 m/s2 .Determine the mass
September 13, 2016

CHECK my answer in American government
Then its A
September 13, 2016

CHECK my answer in American government
** by my answer 4. In which way does a dictatorship differ from a democracy? (1 point) In a dictatorship, the power is held by one person and political party. Leaders in a dictatorship are always democratically elected. Dictatorships have short-term limits on their rule.****
September 13, 2016

geometry
Find the area of a regular hexagon with the given measurement. 4-inch side A = sq. in.
September 13, 2016

math
well, what is 20% of 5000? just subtract that.
September 13, 2016

BOGUS
why do you do this $%@#$%#$% ??? Post the same problem under two different subjects, one minute apart!! Stop wasting everyone's time.
September 13, 2016

Algebra
A football game lost 6 yards on their first play in Gained 10 yards on the next play how many yards were gained
September 12, 2016

Social studies
longhouse
September 12, 2016

Math
Find the sum of all the even numbers between 75 and 85
September 12, 2016

Algebra
A light year, the distance light travels in 1 year,is approximately 5.9x10^12 Alpha centauri A,b 4.3 How far in miles is Alpha Centauri A,B. Scientific notation! I thought the answer was 25.37 x10^12
September 12, 2016

Math
Pencils cost $0.49 each. You estimate the cost as $0.50 each. How many pencils do you need to buy for your estimate to differ from the actual cost by $2.00?
September 12, 2016

Chemistry
Yes
September 12, 2016

Chemistry
A chemist wants to make 500.0 mL of 0.215M NaCl. What mass of NaCl is needed? would it be .500 L x .215 M = .1075 mol NaCl .1075 mol x 58.44g NaCl = 6.28g NaCl needed
September 12, 2016

Chemistry
What volume of 12.1M HCl(aq) is required to make 435 mL of 0.100M HCl? would i just follow the equation V1xM1=V2M2 V1x12.1=.435Lx.100M = 0.00360 L
September 12, 2016

Math
A square painting measures 2 meters on each side.What Is the area of the painting in square centimeters.
September 12, 2016

Physics
Each cubic centimeter of silver has a mass of 10.5 g. (a) What is the mass of 62.9 cm3 of silver? (b) When placed on a beam balance, the 62.9-cm3 piece of silver has a mass of only 612 g. What volume of the piece is hollow?
September 12, 2016

Government
Can also confirm those answers are correct
September 12, 2016

mechanic
Resolve a force of 100 n in to two compound of 200 n each drow sketch .solve this
September 12, 2016

CHECK MY ANSWERS American Government
my answers have * next to them 1. A political system that separates the law-making and law-enforcing branches is called what? (1 point) a federal system a parliamentary system a presidential system*** a unitary system 2. Which of the following statements best describes a ...
September 12, 2016

Math
In​ Marissa's calculus​ course, attendance counts for 10​% of the​ grade, quizzes count for 20​% of the​ grade, exams count for 55​% of the​ grade, and the final exam counts for 15% of the grade. Marissa had a 100% average ...
September 12, 2016

language arts
while cyril is smacking the sat cushion,his aunt invites him to look out the window what can you infer from these to details in The Story teller
September 12, 2016

Social Studies
Adventure is right
September 12, 2016

Social Studies
1. 3, 4, and 5. 2. 4 3. 2
September 12, 2016

Social Studies
1. Which are some characteristics of the Middle Colonies? Select all that apply. 1. Some colonists were skilled artisans. 2. They were all established as Royal colonies 3. Most colonists settled for religious reasons. 4. Agriculture was an important industry. 5. Colonies were ...
September 12, 2016

Economic
J make ice in 4 hours and make cream in 2 hours. P make ice in 6 hours and make cream in 4 hours. What is each opportunity cost of making ice
September 12, 2016

physics
a force of 20 N acts toward the east. Another force of 27 N acts at the same point toward the west. what is the magnitude and direction of a third force that produces a resultant of 10 N toward the east?
September 12, 2016

Physics
A car with an initial velocity of 8 m/s experiences a constant acceleration for 3 sec, after which the velocity is 17 m/s. a) What was the acceleration? b) How far did the car travel during that time interval? What would the equations be for each of these questions?
September 12, 2016

maths
Measure the height of students&estimate mean height
September 12, 2016

Math
A speeder passes a parked police car at 30 m/s and continues on, obliviously maintaining a constant velocity. At that instant, the police car starts from rest with a uniform acceleration of 2.44 m/s2. a) How much time passes before the officer catches up to the speeder? b) How...
September 12, 2016

Math
A car with an initial velocity of 8 m/s experiences a constant acceleration for 3 sec, after which the velocity is 17 m/s. a) What was the acceleration? b) How far did the car travel during that time interval? Please help!! ASAP
September 12, 2016

Math
How we find the 101th term in terms of x (n+1)x + (-1 + 2(n-1))
September 12, 2016

math
2x-1, 3x+1, 4x+3, 5x+5 ... find the formula
September 12, 2016

Chhem
What determines how long it takes salt water to evaporate
September 11, 2016

Physics
A car with an initial velocity of 8 m/s experiences a constant acceleration for 3 sec, after which the velocity is 17 m/s. a) What was the acceleration? b) How far did the car travel during that time interval? What would the equations be for each of these questions?
September 11, 2016

Physics
!@#$%^&
September 11, 2016

Physics
A speeder passes a parked police car at 30 m/s and continues on, obliviously maintaining a constant velocity. At that instant, the police car starts from rest with a uniform acceleration of 2.44 m/s2. a) How much time passes before the officer catches up to the speeder? b) How...
September 11, 2016

physics
You are driving your car along a country road at a speed of 21.5 m/s. As you come over the crest of a hill, you notice a farm tractor 35.7 m ahead of you on the road, moving in the same direction as you at a speed of 10.0 m/s. You immediately slam on your brakes and slow down ...
September 11, 2016

Chemistry
D
September 11, 2016

Chemistry
home / study / science / chemistry / questions and answers / a subtilisin with an active site mutation of his ... Question: A subtilisin with an active site mutation of His t... EDIT QUESTION A subtilisin with an active site mutation of His to Ala had a substantially decreased...
September 11, 2016

Chemistry
Sorry I just realized what you meant. It's 2 times .34 which equals .68
September 11, 2016

Chemistry
So the answer would be none of the above? I had gotten C?
September 11, 2016

Chemistry
An enzyme has velocities of 0.11 nmol/min at a substrate concentration of 1 μM, 0.34 nmol/min at a substrate concentration of 5 μM, and 0.45 nmol/min at a substrate concentration of 10 μM. What is the Vmax for the enzyme if the KM is 5 × 10–6 M? A. 0....
September 11, 2016

Algebra
Idk how to find the min number of sellers
September 11, 2016

Algebra
Sapphire Island is open 7 days a week. The park has 8 ticket booths, and each booth has a ticket seller from 10 am to 5 pm. On average ticket sellers work 30 hours per week The park plans to hire 20 percent more than the minimum number of ticket sellers in order to account for...
September 11, 2016

Calculus
?
September 11, 2016

algebra
5 digit palindrone has 5 in ones place and 6 in thousands and mutiple of 9
September 11, 2016

Maths
Kyle works out that the HCF of the two numbers is: 2squared x 3squared=36 What two numbers might Kyle have been using?
September 11, 2016

statistic
A final exam in Math 160 has a mean of 73 with standard deviation 7.73. Assume that a random sample of 24 students is selected and the test score of the sample is computed. Assuming the scores are normally​ distributed, what percentage of sample means are less than 76&#...
September 11, 2016

History
The Renaissance was characterized by a. creating military alliances with China b. rising interest in Roman and Greek antiquity c. the idea that religion was the basis of existence d. broadening recognition of the insignificance of the human experience e. an attempt to marry ...
September 11, 2016

maths
15625 mcube find its sides
September 11, 2016

physics
the velocity of a body moving with uniform acceleration is 10m/s at a particular instant. its velocity after 5 sec is 20m/s. what was the velocity of the body 3 sec before that instant?
September 11, 2016

Geometry
Find the area of the largest square that can be cut from a circle whose radius 4 millimeter?
September 11, 2016

Geometry
Two spheres of copper, of radii is 1centimeter and 2centimeter respectively, are melted into a cylinder of radius 1centimeter. Find the altitude of the cylinder.
September 11, 2016

Math Solving problem
use elimination method in Algebra Let x be the transported Let y be the dropped then make the equation 5x + 2y = 11 8x + 5y = 5 ---------------- -8 (5x + 2y = 11) +5 (8x + 5y = 5) -------------------- -40x - 16y = -88 +40x + 25y = +25 ____________________ + 9y = -63...
September 11, 2016

Science
How resistivty of conductor vary if area is halved,length is double,area is double
September 11, 2016

Chemistry
Calculate the mass and moles of iodine that reacted in the formation of 2.7132 grams of ZnI2. im slighty confused about the use of iodine, would it be diatomic in the equation for example would i use the conversion 1 mol ZnI2 = 1 mol I2 or 1 mol ZnI2 = 2 mol I
September 11, 2016

Math trigo
Tan 660'
September 10, 2016

Physical Chemistry
5. Assume you have a 45°C 100g block of gold (cp=0.129J/g°C) and a 150°C , 150g block of silver (cp=0.240J/g°C)(1). You place these blocks into an adiabatic container in thermal contact. a. Calculate the final temperature b. Calculate the heat transferred c. ...
September 10, 2016

American Government
I know the three types make up the thirteen colonies, and I know they did explore the unicameral and bicameral houses. I do know about them, considering I answered the third question, I am just having trouble with the options
September 10, 2016

American Government
Okay, can you please explain question four, I'm also having trouble understanding that one. The help you're giving me is much appreciated
September 10, 2016

American Government
Oops I meant question 2 sorry!
September 10, 2016

American Government
Then... 4.B I am just slightly confused with two as my textbook states: "Everywhere, the people were recognized as the only source of governmental authority. In the new United States, government could only be conducted only with the consent on the governed." I ...
September 10, 2016

Lifespan Development
In adolescence and early adulthood, male and females begin to spend more time in mixed-gender groups. Studies of who has more influence on the outcome of problem solving in mixed-gender groups indicate that: A. Females have an advantage because have learned to negotiate in ...
September 10, 2016

Lifespan Development
Tiffany is 3 years old. She knows that she is a girl, and she expects to be a girl tomorrow, but she does not understand that her gender is permanent. She believes that cutting her hair short could change her gender. Tiffany has ___________ but not __________? A. GENDER ...
September 10, 2016

Biology
Jacobie wanted to test the projectile motion of a pumpkin. His hypothesis was "if the pumpkin had a larger mass, then the higher he could throw it, because the larder pumpkins would have more force." He bought three orange pumpkins and test them all on the same day. ...
September 10, 2016

Physical science
The instantaneous speed of a particle moving along one straight line is v(t) = ate^−4t, where the speed v is measured in meters per second, the time t is measured in seconds, and the magnitude of the constant a is measured in meters per second squared. What is its ...
September 10, 2016

Algebra
-2x+6 what is the rate of change between the two variables, what is the y intercept, can you Also answer these same questions for the equation y = -3x + 10
September 10, 2016

Chem
How many significant figures are in these numbers 1,000 has 1 2.134 has 4 0.00001 has 1 10,005 has 5 1.000 has 4
September 10, 2016

Math
272 multiply 42 +272multiply 50+272multipy 8 and name the property applied on it
September 10, 2016

Evans
28
September 10, 2016

general adult education
some have more than a hundred some have none
September 10, 2016

Algebra
An emergency team needs to be on the roof of the hospital 3 minutes before the helicopter arrives. It takes the team 4 minutes to reach the roof. At what time should the team start moving to the roof to meet the helicopter? Explain your reasoning
September 10, 2016

College Algebra
A 6 ft tall man is standing 40 feet from the light post, if his shadow is 20 feet, determine the height of the lamp. Here I use simple ratios: 40ft + 20ft = 60ft 6/20 = h/60 Cross multiply both sides with 60: 6 (60)/20 = h 360/20 = h h = 18 Height of the lamp is 18ft. P.S. Is ...
September 9, 2016

Physics
Superman lived on Krypton where the acceleration due to gravity is 23.6 m/s2. If a woman falls from a building that is 88.3 m tall, how long does he have to save her before she hits the ground? Givens: Unknown: Substitute: Solve:
September 9, 2016

Social studies
Can someone check my answers
September 9, 2016

Calculus
An airplane takes off from an airport at sea level and climbs at the constant rate of 5m/s . The outside air temperature T varies with altitude h according to the law T=15-0.0065h where T is measured in degree Celsius and h in meters above sea level . Find the rate of change ...
September 9, 2016

math
you have 8 different flavors of ice cram and 10 diff toppings how many different desserts could you make
September 9, 2016

maths
2,3,5,7,11,13,?"
September 9, 2016

Math
Find the area of the largest square that can be cut from a circle whose radius 4 mm?
September 9, 2016

Math
Two spheres of copper, of radii is 1 cm. and 2 cm. respectively, are melted in to a cylinder of radius 1 cm. Find the altitude of the cylinder.
September 9, 2016

anal.gom.
ellipse has an equation of x^2+3y^2+16x+4=100y? standard form
September 9, 2016

Chemistry
33,999
September 9, 2016

Physics
The three displacement vectors have a magnitudes of a= 5.00 meters, b= 5.00 meters, and c= 4.00 meters. Find the resultant magnitude and Direction angle of the three vectors by names of the component method. Express the directional angle as an angle above the positive or ...
September 8, 2016

Economic
Q^s=2p
September 8, 2016

Math
Timmy has 12 watermelons and Tina has 14, each watermelon with 12.73 inches and 2.7 inches in hight. Then what is the total length of Tina's watermelon's how over Timmy's *Solve for x= the untold length of watermelon*
September 8, 2016

Physics
In college softball, the distance from the pitcher's mound to the batter is 43 feet. Part A If the ball leaves the bat at 105 mph , how much time elapses between the hit and the ball reaching the pitcher? Express your answer to two significant figures and include the ...
September 8, 2016

physics
In college softball, the distance from the pitcher's mound to the batter is 43 feet. Part A If the ball leaves the bat at 105 mph , how much time elapses between the hit and the ball reaching the pitcher? Express your answer to two significant figures and include the ...
September 8, 2016

Math
Hi John. wants to receive a 96% average on 4 math tests .So far he has taken 3 tests.His grades are 94%, 98%, and 98%. Write an equation in terms of to find
September 8, 2016

Maths
The probability of a biased coin landing on heads is 0.6. I flip the coin 150 times, how many times would the coin land on heads?
September 8, 2016

Math
What are the missing numbers between 10 22 34 46 58 on the number line
September 8, 2016

Math
Two spheres of copper, of radii is 1cm and 2cm respectively, are melted into a cylinder of radius 1cm. Find the altitude of the cylinder.
September 8, 2016

Math
Find the area of the largest square that can be cut from a circle whose radius 4 mm
September 8, 2016

Math
John. wants to receive a 96% average on 4 math tests .So far he has taken 3 tests.His grades are 94%, 98%, and 98%. Write an equation in terms of to find
September 8, 2016

math
from a particular point the angle of elevation of the top of a church spire is 35 degrees. walking 30 metres closer to the church the angle of elevation of the top of the spire increases by 20 degrees. a. how far from the church was the second elevation taken? b. calculate the...
September 8, 2016

chemistry
The oxidation of NO by O3 is first order in each of the reactants, and its rate constant is 1.5 ´ 107 M-1·s-1. If the concentrations of NO and O3 are each 5.0 ´ 10-7 M, what is the rate of oxidation of NO in M·s-1?
September 8, 2016

physics
A balloon was released at sea level from the bottom of a building and retrieved at the top of the building. Its volume changed from 500 cm^3 to 510 cm^3. The pressure at sea level is 100 kPa. If the density of air is constant at 1.29 kg/m^3, what is the height of the building?
September 8, 2016

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