Saturday
April 19, 2014

Posts by Alexis


Total # Posts: 590

7th grade math
how to put 26,000 in a notation

geometry
The perimeter of the rectangle is 19 inches. The perimeter of the inscribed triangle is also 19 inches. What is the width of the rectangle? What is the lengths of the rectangle? sides of isosceles triangle = leng of rectangle + 2 base = width of rectangle

Chemistry
which equation represents an oxidation-reduction reaction? 1.HCl+KOH-->KCl+H2O 2.4HCl+MnO2-->MnCl2+2H2O+Cl2 3.2HCl+CaCO3-->CaCl2+H2O+CO2 4.2HCl+FeS-->FeCl2+H2S

Chemistry
Zn(s)+Cu2+(aq)-->Zn2+(aq)+Cu(s) which particles must be transferred from one reactant to the other reactant ? 1.ions 2.neutrons 3.protons 4.electrons 4?

Chemistry
a redox reaction is a reaction in which 1.only reduction occurs 2.only oxidation occurs 3.reduction&oxidation occur at the same time 4.reduction occurs first and then oxidation occurs i think its 3 or 4.

Chemistry
In the reaction: Cu(s) + 2 Ag+(aq) ---> Cu2+(aq) + 2 Ag(s, the oxidizing agent is ? 1.Cu 2.Cu2+ 3.Ag+ 4.Ag i know its Ag but is it Ag+ or just Ag? what does that extra plus mean?

Chemistry
in the reaction:Ni+SN4+-->Ni2+ (+)Sn2+ which species has been reduced? 1.Ni 2.Sn4+ 3.Ni2+ 4.Sn2+ i know its def Sn but im not sure which one.

Chemistry
In the reaction: Cu(s) + 2 Ag+(aq) ---> Cu2+(aq) + 2 Ag(s) 1.Cu 2.Cu2+ 3.Ag+ 4.Ag i know its Ag but is it Ag+ or just Ag? what does that extra plus mean?

Chemistry
In the reaction 2H2S + 3O2 -> 2SO2 +2H2O, the oxidizing agent is 1.oxygen 2.water 3.sulfur dioxide 4.hydrogen sulfide oxygen?

Chemistry
all redox reactions involve 1.the gain of electrons only 2.the loss of electrons only 3.both the gain and the loss of electrons 4.neither the gain nor the loss of electrons 3, right?

Chemistry
human blood contains dissolved carbonc acid in equilibrium with carbon dioxide and water according to the reaction: h2CO3(aq)<-->CO2(aq)+H2O(l) explain why decreasing the concentration of Co2 will ultimately decrease the concentration of H2CO3.

math
A

Math
The Table shows some common scales used in a model railroading.For each scale,find the length of a model of an 82-foot long boxcar.Give the length of each model in inches. Scale Name/Scale N 1:160, S 1:64, O 1:48

Math
The scale 1 in 120ft was created a 169.3 tall model of Alaska's Mount McKinely.Estimate the height of Mount McKinley from the height of the model.

MATH HELPP!!
FRANCIS PACKED A BAG FOR HER VACATION.SHE TOOK 4 T SHIRTS,2 SWEATERS, 3 PAIRS OF JEANS, HOW MANY COMBINATIONS OF 3 COULD SHE MAKE USING EACH ITEM ONCE.MAKE A TREE DIAGRAM ---->>> THNX!!

mathh hellp me please
write a algebraic expression representing 3 more than the quotient of 4 and a number,n

mathh
write an algebraic expression representing three less than half a number

mathh
write an algebraic expression representing three less than half a number

mathh helpp
kathy will babysit !@#$%^& ctas. she charges $75 for the week for supplies and $8 for each hour,h,she works. write an expression for the total amount kathy charges. -->> THNX!!!

math
al has 3 less than 4 times as many candy bars as neil,n. write an expression representing how many candy bars al has compared to neil --->>>> THNX!:))

beginning/intermediate college algebra
true or false:the graph of the equation 3x-5y=10 goes through (0,-2)

Math
Use the sum or difference identities to find the exact value of each trigonometric function. sec pi/12 Thanks :)

math
32 38 44

Shirley English
What classifcation is this sentence My geandmother from Mempis is the best cook in the world

math
the capacity of a measuring pitcher is 96 fluid ounces.how many quarts can the pitcher hold?

math
if m<8=82degrees, then m<7=

9th grade biology
How can you tell, using a microscope, that an onion cell has depth?

maths
If a farmer has 60 cows on his farm and 53 sheep then how many goats does he have?

english
Where does this semicolon go... All states have flags some are quite beautiful.

3 G Math
How do I answer this......Barry says 9x8x(any other number) will always be greater than the product of 2x9x4. Do you agree? Explain?

3rd grade math
How do I answer this......Barry says 9x8x(any other number) will always be greater than the product of 2x9x4. Do you agree? Explain?

third grade math
How do I answer this......Write three ways to find 3x2x4.

3rd grade math
Barry says 9x8x(any oter number) will always be greater tan te product of 2x9x4. Do you agree? Explain?

science
A student stands at the edge of a diving board that is 3 m high. The student's weight is 350 N. What is the student's gravitational potential energy relative to the surface of the water?

3rd grade math
how do i answer this question....how can you use the multiplication facts for 3 to help you find the multiplication facts for 9?

4th grade math
gina wrote that4/5 is greater than 0.75 .Is gina correct?explain why or why not

Physics
A 15.0 gram bullet strikes and becomes embedded in a 1.24 kg block of wood placed on a horizontal surface just in front of the gun. If the coefficient of kinetic friction between the block and the surface is 0.280, and the impact drives the block a distance of 11.0 m before it...

math fractions
7/16 5/8 3/4

math 3rd grade
Writing in math - How can multiples of 10 also be multiples of 5?

3rd grade math II
I need to write a sentence for the following Reasoning: How can counting by 10's help you multiply by 10's?

3rd grade math
The question reads: Reasoning: How can counting by 10's help you multiply by 10's?

Math
write a number pattern for 8 starfish each has 5 arms.

geometry
do the lenghts 11, 15, and 40 make a triangle?

Geometry
thankx reiny!

Geometry
In an equilateral triangle, what is the difference between the sum of the exterior angles and the sum of the interior angles?

READING
read 2 chapters a day and if youh get really into da book then u will prob' just keep readin' it anyways

World History
Buddhism

World History
The religion based on the teachings of Siddhartha Gautama is known as?

world history
How did movable type help the Chinese to record their knowledge in a permanent form?

Chemistry
Draw the resonance structures for SeS2 and SiS2. There are 2 for SeS2 and 3 for SiS2. I really need help with this. If it can be explain with words, since pictures would be hard. Thanks!

physics
in deep space a gun is fired; how much force will be required to keep the bullet going?

algebra
$7.80/hour = ______ cents/minute?

algebra
$7.80/hour = ______ cents/minute?

8th grade science
hdhiwhgiturioyigpo

college Chemistry
It requires 945.0 kJ/mol to break N2 molecules into atoms. Calculate the maximum wavelength of light that will still break these molecules apart. I tried converting the energy to kj and using E=hc/wavelength but that didn't give me the right answer...

college Chemistry
it did work, thanks!

college Chemistry
It requires 945.0 kJ/mol to break N2 molecules into atoms. Calculate the maximum wavelength of light that will still break these molecules apart. I tried converting the energy to kj and using E=hc/wavelength but that didn't give me the right answer...

math
-7w+23=8w+1

Chemistry - College
The ionization energy of a certain element is 472 kJ/mol. However, when the atoms of this element are in the first excited state, the ionization energy is only 166 kJ/mol. Based on this information, calculate the wavelength of light emitted in a transition from the first excit...

Physics
Ok thank you.

Physics
You are very slowly pushing up an incline with a calculator sitting on it. The coefficient of static friction is 0.7. At what angle θ will the calculator start sliding?

Physics
You are very slowly pushing up an incline with a calculator sitting on it. The coefficient of static friction is 0.7. At what angle θ will the calculator start sliding?

Physics
You are very slowly pushing up an incline with a calculator sitting on it. The coefficient of static friction is 0.7. At what angle θ will the calculator start sliding?

College Chemistry
Given that delta Hrxn for OH- ions is -229.6 kJ/mol, calculate the enthalpy of neutralization when I mole of a strong monoprotic acid (such as HCl) is titrated by 1 mole of a strong base (such as KOH) at 25-degrees C.

English-Article on the Hunger Games
you should put in that bella and edward are from the top selling twilight series, other than that i think that the artical is amazing

social studies
i need to draw a kid verson of a separatist

math
I have more ones than tens. The value of me tens digit is 80. What number am I?

Physics
A car (mass 880 kg) is traveling with a speed of 44 mi/h. A bug (mass 7.9 mg) is traveling in the opposite direction. What speed would the bug need in order to slow down the truck by one mile per hour in a big bug splash (i.e., final speed 43 mi/h)? I don't know how to app...

finance
Write a 200- to 300-word paper comparing long- and short-term financing. Describe situations in which each type of financing would be used. Post in your Assignment Section.

Physics
A car (mass 880 kg) is traveling with a speed of 44 mi/h. A bug (mass 7.9 mg) is traveling in the opposite direction. What speed would the bug need in order to slow down the truck by one mile per hour in a big bug splash (i.e., final speed 43 mi/h)?

Physics
A car (mass 880 kg) is traveling with a speed of 44 mi/h. A bug (mass 7.9 mg) is traveling in the opposite direction. What speed would the bug need in order to slow down the truck by one mile per hour in a big bug splash (i.e., final speed 43 mi/h)?

Physics
A car (mass 880 kg) is traveling with a speed of 44 mi/h. A bug (mass 7.9 mg) is traveling in the opposite direction. What speed would the bug need in order to slow down the truck by one mile per hour in a big bug splash (i.e., final speed 43 mi/h)?

3rd grade
140,000

math
2(b -3)+5=3(b-1)

Science
thank you...I hope people answer with good statements saying why need the most votes for science class. need as many as possible.

college physics
Okay thank you for your help.

college physics
Ohio State this is my first physics class I have ever taken.

college physics
So would it be 78*3.6

college physics
Arthur (mass 78 kg) and Violet (mass 31 kg) are trying to play on a seesaw. If Violet sits 3.6 m from the fulcrum, at what distance from the fulcrum should Arthur sit?

physics
F(new)=F(old)x Cos(angle)

college
Vocabulary analogies

12th grade economics
what does the process of specialization do for the economy?

7th grade
i need help with this problem -4p < 76 please help ASAP!

Math
So the answer is 1.2 million ? but thats also in the question.

Math
There are about 1.2 million people in the U.s who speak chinese. This is about 3 times the number of people who speak greek. How many people speak Greek?

3rd grade
How do we answer this question...the flower shop just received a shipment of 432 roses. they need to fill an order for 273 roses. use any method to estimate how many roses they will have left.

3rd grade
mary's birthday is between june 13 and june 23. the date of her birthday is not an even number. the sum of the digits is 3. when is mary's birthday?

Algebra
How do I solve this funtion: (2x-9)-(1-x)

Algebra
How do I solve this funtion: (2x-9)-(1-x)

College Economics
Hey can someone tell me how to graph this in excel please. Thanks. Produce a chart in Excel showing TC and TR with Q on the horizontal axis. Have Q go from 0 to 15,000 units. Produce a second chart showing MC and MR with Q again on the horizontal axis. Here is the problem for ...

economics
Hey can someone tell me how to graph this in excel please. Thanks. Produce a chart in Excel showing TC and TR with Q on the horizontal axis. Have Q go from 0 to 15,000 units. Produce a second chart showing MC and MR with Q again on the horizontal axis. Here is the problem for ...

English
How did Arthur Miller use the witch trials to represent the McCarthy witch hunt?

3rd grade
Explain how you would use a number line to round 148 to the nearest ten.

chemistry
What is the mass, in grams, of 3.57×10^−2 ?

6th Grade Math
what is the equivalt fraction to 9/12

Chemistry
A gas has a density of 1.25 g/L at STP. What is its molecular mass?

math
name each number in 2 different ways 67,000

math/prealgebra
what are the actual definitions to the word algebra itself? algebra? cubed? counter example? function table? function rule? can you help me find these definitions?

4th grade
writing in expandfed form when it comes to hundred thousands.

statistic math
it is known that 5% of all parts manufactured at Plant F are defective. If 30 part are randomly selected what is the probability that all 30 parts are not defective and what is the probability that at least one of the 30 parts is defective?

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