Friday

August 29, 2014

August 29, 2014

Total # Posts: 2,044

**Physics**

is it 20*100=2000 m where did u get 200 from? thanks!
*August 28, 2014*

**Physics**

A constructor on worker assisting in the paving of a street drives a heavy roller back and forth over the newly paved area to smooth the asphalt. The section of street being paved is 100 m long and the roller operator drives from the east end to the west end of the street and ...
*August 28, 2014*

**Physics**

Maria is undergoing physical therapy for a back injury. Her therapist instructs her to use the power-glide incline. When using the incline, Maria pushes with her legs, raising her torso 30 cm up the incline and then she release to drop back down again. She is instructed to ...
*August 28, 2014*

**Chemistry Help!!!!!!!!!!!!!!**

1)The equipment you would use for carrying out a simple distillation at reduced pressure (i.e. under vacuum) 2)What could be the advantage of carrying out a distillation under vacuum as compared to atmospheric pressure?
*August 27, 2014*

**Chem Help Please!!!**

For each of the pairs of elements below give the formula for the simplest compound to be formed from them and explain the basis of your decision and note if the bond(s) formed are ionic or covalent. a) sodium and fluorine b) nitrogen and hydrogen c) silicon and oxygen d) ...
*August 26, 2014*

**Chemistry Help!!!!!!!!!!!!!!**

for the following elements show the allocation of electrons to their orbitals on the basis of the Pauli exclusion principle and Hund's rule. a) Carbon b) Silicon Thanks!
*August 26, 2014*

**statistics**

B it is....
*August 26, 2014*

**statistics**

Then d?
*August 26, 2014*

**statistics**

1. c 2.a 3.b
*August 26, 2014*

**statistics**

The number of new boats sold at a boat dealership in a given week qualitative/nominal qualitative/ordinal quantitative/continuous quantitative/discrete the weight of a gemstone qualitative/nominal qaulitative/ordinal quantitative/continuous quantitative/discrete The make of a ...
*August 26, 2014*

**statistics**

describe the distribution of the data with regard to the shape, outliers, center, and spread.
*August 19, 2014*

**Help Please!!!!**

is it thumb to nose????
*August 9, 2014*

**Help Please!!!!**

The oral evacuation system is held with the _______ grasp. A. thumb-to-nose B. palm C. thumb-ring D. pinky-to-nose I said B and was wrong. Thank you!
*August 9, 2014*

**Dental Questions Check Help Please!!!**

1)Each state has a dental board of examiners responsible for enforcing that particular state's Dental Practices Act (DPA). The DPA contains similar requirements for dentist conduct. Which of the following is not covered by the DPA? A. Americans with Disabilities Act (ADA) ...
*August 8, 2014*

**DENTAL ASSISTANT HELP PLEASE!!!!!!**

1)Each state has a dental board of examiners responsible for enforcing that particular state's Dental Practices Act (DPA). The DPA contains similar requirements for dentist conduct. Which of the following is not covered by the DPA? A. Americans with Disabilities Act (ADA...
*August 7, 2014*

**math**

Carl weighted 180 pounds after two months he lost 9 pounds what percent of his weight did he lose
*July 28, 2014*

**Spanish 1**

thanks Ms. Sue
*July 21, 2014*

**Spanish 1**

Venden Uds. frutas? No, aqui nosotros ____ ropa.
*July 21, 2014*

**Spanish 1**

so what is the Spanish version of to be?
*July 21, 2014*

**public speaking**

Your central idea is a statement that captures in a single sentence:
*July 16, 2014*

**CHEISTRY**

WRITE THE RATE EQUATION FOR N2O2---->2NO
*July 11, 2014*

**physics**

15 KG HEIGHT 200 METERES WHAT IS THE CHANGE IN TEMPERATURE
*July 8, 2014*

**chemistry**

Insert a complete data table, including appropriate significant figures and units, in the space below. Also include any observations you made over the course of Part I. Aluminum Measured Mass of Metal 41.66 g Distilled Water Measurement 25 mL Distilled Water Temperature 25 C ...
*July 7, 2014*

**statistics**

Could someone let me know if I did this correctly? Source Sum of Squares (degrees of freedom [df]) Mean Square Fobt. Fcrit. Gender 68.15 1.07 68.15/63.685 0.59 1.07,1,2 Marital Status 127.37 3.04 63.685/20.95 0.75 3.04,2,2 Gender * Marital Status (A x B) 41.90 2.28 20.95/9.2 0...
*July 7, 2014*

**Algebra**

While shopping for a party, June bought 2 1/6 lbs of hamburger, 3 4/5 lbs of chicken, and 4 1/2 lbs of ham. How much meat did she buy?
*June 27, 2014*

**Math for 7th graders///////**

Thank you for answering my question. I was stuck on that question for so long. Now that you answered it I am stress free!!!!!! Thank you again!!!! :):):):):):):):):):)
*June 25, 2014*

**Math for 7th graders///////**

In a survey 182 people said they liked chocolate ice cream the best. This is 35% of all the people surveyed. How many people were surveyed??? Please tell me the answer and please show your work so I could understand how you figured it out!???
*June 25, 2014*

**geometery**

4. Quadrilateral MATH has been dissected into squares. The area of the red square is 64 square units and the area of the blue square is 81 square units. Determine the dimensions and the area of quadrilateral MATH.
*June 9, 2014*

**math for me!!!!!!**

Linda can run 1 mile in 9 minutes. How many miles can she run in 1 hour?
*June 2, 2014*

**Chemistry**

Rearrange this equation to isolate a b (a+ c) (d-e)=f
*June 1, 2014*

**Trig**

Thank you!
*May 27, 2014*

**Trig**

You and a friend are rowing a boat 8.5 KPH heading north. A cross current is moving 3.2 KPH at an angle of 38 degrees north of the west direction. How fast are you actually moving and what direction are you actually heading?
*May 27, 2014*

**college calculus**

the amount of carbon-14 in a mammoth's bone is 45% of the amount found in a living organism. How long ago did the mammoth die? the half-life of carbon-14 is about 5,730 years.
*May 22, 2014*

**math**

1. C 2. C 4. B 8. B
*May 22, 2014*

**math**

1. The cost of a regular price to Saint Louis Cardinal baseball was $60. During the World Series, the price increased by 2/5. What did the fans pay? A. $65 B. $84 C. $80 D. $69 my answer is D 2. Abby is touring China for four days. The rental is $38.15 per day plus 12 1/2 ...
*May 22, 2014*

**chemistry**

The volume of a gas is 150 mL at 240.0 kPa pressure. What will the pressure be when the volume is reduced to 100.0 kPa, assuming the temperature remains constant?
*May 21, 2014*

**Algebra 2**

what is the exact value of cos 5pi/3 radians
*May 21, 2014*

**Algebra 2**

Given the point A(2,-1) on the terminal side of angle 0, what is the value of the cosecant of angle 0?
*May 21, 2014*

**Math**

identify the vertex and the length of the transverse axis is 10 units, and the length of the conjugate axis of the hyperbola x^2/25-y^2/16=1
*May 21, 2014*

**Algera**

identify the vertices, the co-vertixes, and the foci of the ellipse x^2/4+y^2/9=1 A. the vertexes are (0,2) and (0,-2). The co-vertexes are (3,0) and (-3,0). The foci are ((0, 3√5) B. The vertex ices are (0,3) and 0.-3). The co-vertex are (2,0) and (0,-2). the foci are (...
*May 21, 2014*

**math**

1 identify the coordinates of the vertex and the equation of the axis of summetry of the parabola x=2 (y-1)^2+3 A. The vertex of the parabola is (1,3), and the equation of the axis of symmetry B. the vertex of the parabola is (3,1) and the equation of the axis of symmetry c. ...
*May 21, 2014*

**math help**

Identify the center and radius or the circle with the equation. (y-5)^2+(Y+8^2=25
*May 20, 2014*

**math**

identify the center and radius or the circle with the equation (x+2)^2+(y-3)^2=4
*May 20, 2014*

**Math**

Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -3x^2 + 9x + 3.
*May 19, 2014*

**math**

Use the binomialsl theorem to find the binomial binomialsion of the expression (x-3)^5
*May 19, 2014*

**Algebra**

there are 10 students in a social studies class. three students will be selected to present their term projects today. In how many different orders canthree students be selected?
*May 19, 2014*

**Math**

Which cosine function has maximum of 0.5, a minimum of -0.5, and a period of 2pi/3?
*May 19, 2014*

**Algebra 1B**

How do you write x³ = 100 in log form?
*May 14, 2014*

**social studies 9**

are there any other reasons why?
*May 13, 2014*

**social studies 9**

Why do you think Brant and others of the Six Nations distrusted the Americans?
*May 13, 2014*

**social studies 9**

can you explain that a little better?
*May 13, 2014*

**social studies 9**

why would Brant and the Mohawks, the Iroquois, and others, would choose an ally themselves with the British in the revolutionary war.
*May 13, 2014*

**social studies 9**

thanks for your help!
*May 13, 2014*

**social studies 9**

can someone help me?
*May 13, 2014*

**social studies 9**

I don't understand the question.
*May 13, 2014*

**social studies 9**

Find out Joseph Brant's Mohawk name. How did he get the name "Joseph Brant"? Why do you think Joseph Brant was able to establish diplomatic links with the British to the extent that he did?
*May 13, 2014*

**Math**

A square has an area of 13ft^2 To the nearest tenth, what is its perimeter ?
*May 12, 2014*

**Algebra 1B**

f(x) = -7x^2 + 3x + 5.What is the appropriate values when solving? I just do not understand help please
*May 10, 2014*

**Calculus**

Given f'(x)=9/2x(3x^2+2)^1/2 (this is the derivative of y= sqrt[(3x^2+2)^3]) , state any values of x for which the function is not differentiable
*May 10, 2014*

**calculus-answer check**

Deermine the derivative of f(x)=[(3x^2+1)^3+1]^2. Express your answer in simplified form. For this I got 54x^6+162x^5+54x^4+108x^3+18x^2+18x+2
*May 9, 2014*

**Calculus **

If y=u^3+u^2-1, where u=1/(1-x), determine dy/dx at x=2
*May 9, 2014*

**Calculus **

1.a)Determine dy/dx if y= sqrt[(3x^2+2)^3] For this question, I got 9/2x(3x^2+2)^1/2 as my answer. b)State any values of x for which the function is not differentiable
*May 9, 2014*

**Calculus**

Let s(t)=-5t^2+40t be the position equation for a rock thrown upwards. At what time t, in seconds, will the rock change directions?
*May 9, 2014*

**calculus-answer check**

1. Determine the slope of the tangent to the graph of y=4/x at (1,4) my answer is -4 2.What is the slope of the line perpendicular to y=(x-2)/(x+2) at (2,0) my answer is -4 3. For which value of x is the derivative of f(x)=(x-1)^10(x+2)^5 equal to 0? my answer is 1
*May 9, 2014*

**calculus-answer check**

thanks!
*May 9, 2014*

**calculus-answer check**

Determine the slope of the tangent line to the curve y=(x^2+3x)(x^2-2) at x=-1. I got 3 as my answer although I am not too sure that it's correct. I found the derivative of the function and then substituted -1 into the equation.
*May 9, 2014*

**Calculus answer check**

thanks!
*May 9, 2014*

**Calculus answer check**

Starting from rest, a man runs 10 metres along a straight path in t seconds. His position can be described by the function s(t)=0.7t^2. How long will it take him to reach the velocity of 4m/s? would the answer be 5.6 s? I started with s(t)=0.7t^2, then the velocity is 7/5t and...
*May 9, 2014*

**Calculus**

I meant to write the equation like this: f(x)=(1/3)x^3-x^2+x-1 when x=1
*May 9, 2014*

**Calculus**

write the equation of line tangent to f(x)=(1/3x^3)-x^2+x-1 when x=1
*May 9, 2014*

**english**

one of the artists said him painting were at gray gallery
*May 8, 2014*

**math**

write a diameter if 8-pound test line in words and as a fracion
*May 1, 2014*

**Math 4 grade**

Thanks How is your work?
*April 30, 2014*

**Math 4 grade**

Yes
*April 30, 2014*

**Math 4 grade**

How much is one cola? Use the clues to find out. -The cost is between 20€ and 30€ -You can buy one cola with exactly 6 coins. -You can buy two colas with exactly 6 coins. -You can buy three colas with exactly 6 coins. -You can use pennies, nickels, dimes, or quarters...
*April 30, 2014*

**social studies 9**

Pros and cons of the Quebec Act
*April 29, 2014*

**social studies 9**

The 1763 Royal Proclamation
*April 29, 2014*

**social studies 9**

Why do you think the government has downplayed the Royal Proclamation in regard to land claims? I don't understand the question.
*April 29, 2014*

**social studies 9**

Why do you think the government has downplayed the Royal Proclamation in regard to land claims?
*April 29, 2014*

**Helpppp Math!!!**

The market value (in thousands of dollars)of a certain home is a linear function of t, the time in years since 1990. In 1992 the market value was 68 thousand dollars, while in 1997 the market value was 79 thousand dollars -Find the slope of V as a linear function of t. Explain...
*April 29, 2014*

**Math! Helppppp**

Two poles are place 15 feet apart. One pole is 8 ft high and the other pole is 16 ft high. The top of each pole is attached to the base of the other by cable which run in a straight line. -Find the slopes of the lines defined by the two ropes. -How high above the ground is the...
*April 29, 2014*

**algebria**

Suppose the population of deer in a state is 10,280 and is growing 1% each year. Predict the population after 5 years
*April 25, 2014*

**Psychology**

Is Gender a social construct referencing cultural behavioral expectations for men and women
*April 18, 2014*

**Psychology**

Changes based on biological and psychological forces are functions of
*April 18, 2014*

**geometry**

the set of lessons in this geometry course is:
*April 17, 2014*

**calculus help**

explain fully what trick you must use in order to us L'Hospital's rule for indeterminate powers?
*April 16, 2014*

**chemistry help~~~~ Please!!!**

Sodium-24, t1/2 = 15.0 hr, can be used to study the sodium balance in animals. If a saline solution containing 25 μg of 24^Na is injected into an animal, how long can the study continue before only 1 μg is left? Show work please!
*April 14, 2014*

**chem 101**

How many kilojoules of heat are needed to completely vaporize 42.8 g of C4H10O at its boiling point? Given Hvap=26.5kj/mol
*April 14, 2014*

**algebra**

Ln(x+3)- Ln(x-5)=Ln7
*April 13, 2014*

**algebra**

In 1990, the population of Africa was 643 million and by 2000 it had grown to 813 million. a.) Use the exponential growth model A=A0 e^kt, in which t is the number of years after 1990, to find the exponential growth function that models the data. b.) By which year will Africa ...
*April 13, 2014*

**Calculus Help Please!!!**

A radioactive substance has a half-life of 4 days. Suppose we have 800 mg of this substance. a) Find the equation of the mass remaining after t days. Use the exact value for k not a decimal approximation. b) Rounding your answer to the nearest tenth of a mg, find the mass ...
*April 9, 2014*

**financial management**

Post your response to these questions: A budget systems model is the foundation from which budgeting systems can be used to evaluate the success of an agency or company. How are performance budgeting systems used to evaluate the efficiency and effectiveness of a human service ...
*April 7, 2014*

**social studies 9**

explain why the mohawks and the other first nations would choose to become allies with europeans, even though they knew that all the europeans were a threat to their territory and way of life
*April 3, 2014*

**math**

Find the foci x^2/49 + y^2/36 = 1
*April 2, 2014*

**Calculus Help Please!!!**

Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = xe^((−x^2)/98), [−6, 14]
*April 1, 2014*

**social studies 9**

thank you
*April 1, 2014*

**social studies 9**

why are people who are attached to religious orders ideally suited to leave their home country and take residence in a new land
*April 1, 2014*

**Calculus Help Please!!!**

Compute Δy and dy for the given values of x and dx = Δx. (Round your answers to three decimal places.) y = 3x − x^2, x = 3, Δx = −0.6 Δy=???
*March 30, 2014*

**Math **

for the function y=-(1)/(x-3/4) describe the intervals where the slope is increasing and where its decreasing
*March 30, 2014*

**Calculus Help Please!!!**

A water trough is 5 m long and has a cross-section in the shape of an isosceles trapezoid that is 30 cm wide at the bottom, 70 cm wide at the top, and has height 40 cm. If the trough is being filled with water at the rate of 0.1 m3/min how fast is the water level rising when ...
*March 30, 2014*

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