Wednesday
April 23, 2014

Posts by ashley


Total # Posts: 2,656

Math(scientific notation)
1)9.32E-7 + 1.32E+4 = 2)1.32E+4 + 1.04E+5/6.47E+4= 3) 9.93E+6/(9.32E-7)(1.32E+4)= I keep getting a different answer from the answer my teacher provided.

Human growth and development
Order from least effective to most effective against pregnancy. Condoms, abstinence, sponges, birth control.

Pre-algebra HELP ME PLEASE
A triangle has side lengths of (x+4), (4x-8), and (2x+8) units. If the perimeter of the triangle is at least 88units, what is the minimum length of each side of the triangle?

math
8 divided by 4=2 2•5=10 hope this helped!

Pre-algebra (DESPRATE NEED OF HELP!)
A triangle has side lengths of (x+4), (4x-8), and (2x+8) units. If the perimeter of the triangle is at least 88 units, what is the minimum length of each side of the triangle?

Biology(HELP ME!!!)
An average person blinks their eyes about 20 times per minute. Estimate the number of times a person will blink in 1 year.

Pre-algebra
7(3g-9)>6(5g-6)

Pre-algebra
8(2j-6)>2(4j-4)

Pre-algebra
3(4b+8)<132

Pre-algebra
-5(c+15)<75

Pre-algebra
-12(g+8)>24

Pre-algebra
6(p-8)>78

Pre-algebra
8(m+5)>-32

Pre-algebra
-9(f-6)<117

physical science
False, not ALL units of energy are vectors. Most of them are though

physical science
True

calculus
Find the volume of the solid generated by revolving the region about the given line. The region is in the first quadrant bounded above by the line y= sqrt 2, below by the curve y=secxtanx, and on the left by the y-axis. Rotate the region about the line y=sqrt 2. i also need to...

2nd Grade Math
You have 7 peices of bread. You take all of them and cut them in half. Then, you take the bread agian to make more halves which makes quarters of the bread

Us history
What is the Wilmot proviso?

Grammar
Alot or a lot?

Pre-algebra
8(4s-7)<6(2s+4)

Pre-algebra
-5(3e-2)<-2(6e+7)

Pre-algebra
-3(2b+4)>4(b+7)

Pre-algebra
48>3(w+7)

Pre-algebra
-12(c-6)<120

Pre-algebra
7(v+5)>56

I really need help with biology!!
1. cardiac 2. you wind up to pitch 3. is unlikely to incur bacterial infection 5. glucagon

Social Studies
i have a social studies project i just have a couple questions maybe you could help me with ?

Statistics
500.12

Math
if someone is born on Nov 01, 1998 how old are they in may 2011 or in 2011? shouldn't they be 13 but in my answer book the answer is 12. how come? im confued?

Statistics
If one card is randomly selected, what is the probability that the card selected is neither an ace nor a jack?

Statistics
A small gelateria has ten flavors of ice cream. They also have four toppings: crushed graham crackers, fresh strawberries, jimmies, and whipped cream. How many two-scoop sundaes can be made if the two scoops are different flavors and only one toppig can be selected?

Statistics
70% of Americans file their taxes electronically. For a group of 30 American adults who were selected at random, what is the probability that exactly 10 of them do not file their taxes electronically.

statistics
70% of Amerians file their taxes electronically. For a group of 12 American adults who were selected at random, what is the probability that at least five of them file their taxes electronically?

Physics
PLEASE HELP! ITS URGENT!

Physics
A Saturn V rocket with an Apollo spacecraft attached has a combined mass of 2.1 105 kg and will reach a speed of 11.2 km/s. How much kinetic energy will it then have?

Math
Please help simplify this problem. Its Kinda hard. 8-5/8+1/2*6/9 Thanks

Algebra
I've tried and tried and just can't do it. Please help solve this problem. 16-2(8w-7)=3w-18(2-w)

Physics
What do you mean with the inverse?

Physics
A body of mass m moves under the influence of force F(r). Given it's trayectory r(t), find F(r).

Physics
Aristotle is sometimes quoted as claiming that a body falls at a speed proportional to its mass. Let us suppose that Aristotle’s experience was based on objects falling in air (with turbulent flow drag) essentially at their terminal speeds. a. If Aristotle were considerin...

Physics
A body of mass m moves under the influence of force F(r). Given it's trayectory r(t), find F(r).

Physics
Aristotle is sometimes quoted as claiming that a body falls at a speed proportional to its mass. Let us suppose that Aristotle’s experience was based on objects falling in air (with turbulent flow drag) essentially at their terminal speeds. a. If Aristotle were considerin...

Physics
A body of mass m moves under the influence of force F(r). Given it's trayectory r(t), find F(r).

Physics
Aristotle is sometimes quoted as claiming that a body falls at a speed proportional to its mass. Let us suppose that Aristotle’s experience was based on objects falling in air (with turbulent flow drag) essentially at their terminal speeds. a. If Aristotle were considerin...

Biology 1
What is a Biochemical cycle and why is it important? Give at least one example.

chemistry
the volume ratio between the two gases should have been exactly 2:1. What physical property of either gas might explain the difference between the observed ratio (before rounding) and the theoretical value?

Math
Kelsey has 6 coins. 1/3 of her coins are dimes. The value of the dimes is one-fourth the value of the coins. How much money does Kelsey have?

Brief Calculus
Thanks Guys!

Brief Calculus
Decide on what substitution to use, and then evaluate the given integral using a substitution. HINT [See Example 1.] (Round your decimal coefficients to four decimal places.) x/(2x^2 − 1)^0.4 dx

Algebra
solve the eauation check for extraneous solutions. log5 x=4

Chemistry
we were asked to find the enthalpy change because it is an exothermic reaction. Dont i have to convert cm^3 into dm^3 in the equation?when i divide the Heat energy with the number of moles in order to get enthalpy change do i put the moles of the limiting reagent?

Chemistry
So I am writing a lab report and Im stuck with calculating the enthalpy change of combustion of the following reaction: Mg+2HCl--> MgCl2+H2 .I am given the mass of Mg which is 5g and the concentration of HCl which is 2M and the volume of HCl which is 50 cm^3.I found the lim...

precalc
How do you solve log5 sqrt125?

Algebra 1
-3t/t^3-t^2

english
Neither her associates nor the doctor __________ the surgery is necessary. thinks think

geometry
x^2=y^2-6x+8y=10 what shape is this?

chemistry
What is the lewis dot diagram for menthol? (C10H20O1)

Physics
I've been stuck on this problem for a while. Im not sure where to even begin. A bike wheel is rotating with an angular velocity of 3.1 rev/s. If the coefficient of kinetic friction between the wheel and brakes is .87, then find the revolutions the wheel makes in coming to ...

algebra
which expression is the equivalent of 3x+2y+8−9?

Integrated Physics and Chemistry
The internal energy of a material is determined by.. A)its temperature B)the kinetic energy of its molecules C)the potential energy of its molecules D)the combined amount of kinetic and potential energy of its molecules

Integrated Physics and Chemistry
a baby pushes a toy across the floor with a force of 5 newtons.which is this a example of balanced force,interia,ubalanced force,or velocity?

Integrated Physics and Chemistry
Matching... Heat engine Heat pump Boiler Thermostat -a heating appliance that uses heat energy released from fossil fuels to warm water for use in radiant or convection heating systems -a appliacne that controls the maintenance temperature of a heating system -an appliance tha...

Integrated Physics and Chemistry
A thermostat is used for which of the following? A) Maintaining the temperature is a room B)Turning a heating system on C)Turning a heating system off D)All of the above

math
Please more help

math
In standard (x,y )coordinate plane,the graph of (x-2)^2 + (y+4)^2=9 is a circle.What is the area enclosed by this circle,expressed in square coordinate units?

math
In triangle ABC if <A and <B are acute angles and sin 10/13 , what is the value of cos A?

Integrated Physics and Chemistry
Some refrigerants used in air conditioners have been associated with.. A)somg B)destruction of the ozone layer C)thermal pollution D)power failures

chemistry
What would be the best technique to separate a soluble solid from a solution, like separating salt from a mixture of salt water?

Social Studies
ICIZENTS-people who have the right to participate in goverment

algerbra 2
if the sum of the focal radii of this ellipse is 12 what is the value of a^2?

algerbra 2
given that a parabola has a directix of =-3.25 and focus of (0,-2.75) find the vertex

Health
For this Assignment, imagine that you are a policy analyst for your state human services department. You have been asked to write a short memorandum for the department director on a policy paper entitled Rising Health Care Costs: State Health Cost Containment Approaches. In yo...

math
how do you remember mixed numbers and improper fractions?

hsm210
What are some concerns about the current state of the human service industry?

chemistry
If you have 200. mL of a 0.50 M solution of KOH and you wish to dilute it to 0.30 M, how many mL of water should you add?

HCS 320
I am supposed to outline how to integrate communication from a central command area to all areas of the organization. The organization is FEMA. I am completely lost and I just need some help on how to get started. For instance what would be the central command area, and what a...

Hcs341
Please someone help me this was due yesterday

Hcs341
I would love a reference for description of the process for tracking and evaluating training effectivness.

english
identify one example of personification from dorothy aldis s poem snow and knikki giovannis poem the world is not a pleasant place to be

english
i have no clue how to paraphrase!!! paraphrase the quotation: the poets voice need not merel be the record of man it can be one of the props the pillars to help him endure and pervail.

algebra 2
please help i have done these problems 3 times now and always get them worng. find the first three terms of (a-b)^6 find the last three terms of (2x+y)^5 find the third fourth and fifth terms of (a+b)^9

Algebra 2
please help i seriously dont understand any of these!! solve by factoring: 1.x^3-12x = x^2 simplify 1.4c/12c^5 2. a^2x/a 3. x^3y^4/2 x^2y^6

physics
0.11

Chem
Sorry but i figured it out.

Chem
Still not understanding on how to set up the problem to get the answer.

Math
114

physics
THis can be found using the conservation of momentum. Pix + Pix = Pfx + Pfx Where P = mv The mass of the arrow is .3 kg, the target is .0225kg. The initial velocity of the target is -2.15 m/s and the initial velocity of the arrow is 38.0m/s. If the target is stopped, the final...

Calculus.
Given the function f with the restricted domain, find the points at which the tangent line is horizontal. f(x)=2sec(x)-tan(x) Domain: [-pi/2,pi/2] * I got (pi/6, square root of 3), but I am not sure if that is right, or if there is another point.

Chemistry
A solution consisting of 25.00 g Nh4Cl in 178 ml of water is titrated with 0.114M KOH. How many mL of KOH are required to reach the equivalence pt?

6th grade math
my answer is 5554 gallons

statistics
a simple random smaple of 55 mathematics teachers were timed as they completed sudoku puzzles. Their mean completion time was 20.3 minutes. The population standard deviation is assumed to be 12 mintues and times vary normally. Find 99% confidence interval for the mean time for...

geometry
Given that BD Û AC, which of the following statements is NOT necessarily true?

MATH
DETERMINE WETHER (7,-2)IS A SOULTION FOR 3X-2Y=14

Chemistry
Waht is the mass in mg of 0.016 moles of glucose (C6H12O6)?

math college
If the volume of a cone is 100cm cubed and the lateral surface area of the cylinder is 150cm squared, what is the height of the container

math college
If the volume of a cone is 100cm cubed and the lateral surface area of the cylinder is 150cm squared, what is the height of the container

Statistics
A survey found that 25% of pet owners had their pets bathed professionally rather than doing it themselves. If 20 pet owners are randomly selected find the probability that between 12 and 7 pet owners, inclusive, have their pets bathed professionally.

math
30 - 19 1/3

Chem
I want to see if i got my answer correct for #1 but I need help on #2 1.A 150g aluminum pan containing 500g of water is heated on a stove for 5 minutes. The temperature goes from 23.5C to 48.9C. How much heat was absorbed. (s for Al is .900j/g C, s for H2O is 4.184 j/g C) I go...

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