# Math(Please help)

183,433 results, page 64

### Math

Use three rectangles of equal width and the left endpoint approximation method to estimate the area enclosed by the x-axis, the lines x = 1 and x = 4, and the curve y = x^(1/2). Could you please help me understand how to do this? Thanks in advance!

### Math (please check my answer!!)

What other information must be given in order to be able to prove the two triangles congruent by ASA? i.imgsafe(.)org/c64c59dad9.jpg 1. T=S 2. P=S 3. P=R<<< 4. PQ=QR

### math

Find three consecutive odd integers such that four times the middle integer is two more than the sum of the first and third. I think I'm doing it wrong. 4((x)+(x+2)=x+(x+4)+2 4(2x+4)=2+3x+6 8x+16=3x+8 5x=8 ? Please help

### math

find the area of a triangle i dont have a pic so ill just tell you the measurements 5.5m, 6.9m, 4.9m choices: a. 16.5m2 b.11.55m2 c.23.1m2*** d.4.85m2 is my answer correct if not please explain how to do it

### math

if shelia invested $5000 in an account paying 3% annual interest. how many years will it take her money to double? write it in exponential equation and rewrite it in log form. please help

### REPOST- PLEEEEEEEEAAAAAAASE HELP!!!!!!!!!!!!!!!!!

Write the verbal sentence as an equation, or an inequality: Fifty multiplied by the quantity twenty divided by a number n is greater than or equal to two hundred fifty. Am I on the right track: 50 * 20 / n > 250 - Please help me...Please!

### English literarure(a streetcar named desire)

infact my problem is that i dnt know how to start answering this empathy question.Can you please help me??th question is thet; Imagine you are stanley.write your opinion about Blanche (scene 1).please help me.

### linguistics

Hello everybody! I need a huge favour! If someone is very very good at distinguishing metaphors from metonymys please leave an e-mail.I am going to send you some examples.So if anyone is willing to do it please say!

### Chemistry 130

Can someone please help me with this question? Could freezing point depression be used for substances that are not soluble in water? Please help me....can you explain why? Is there anywhere I can find this information because my chemistry book doesn't have any info. about this...

### Chemistry

4.0 g of ferrous ammonium sulphate, FeS04(NH4)2 SO4 6H20, is used. The oxalate is in excess, calculate the theoretical yield of the iron complex. Can someone please show me how to calculate a question like this please? Thank you

### computors...non-school related

What Can I Do... When I try and open an email attachment, The Message Is This 'This Operation Has Been Canceled Due To Restrictions In Effect On This Computer. Please Contact The System Administrator'. Well... I Am The Administrator... So... How Can I Remove This... please help

### Chemistry PLEASE HELP

how do i calculate a concentration ratio of oxidised to reduced cytochrome c Fe2+ to Fe3+ given at 25 C and pH7 E(mV) as 100 and absorbance at 550nm as 1.5 E is relative to standard hydrogen electrode i don't know how im supposed to calculate it from this data please help

### chem HELP PLEASE

how do i calculate a concentration ratio of oxidised to reduced cytochrome c Fe2+ to Fe3+ given at 25 C and pH7 E(mV) as 100 and absorbance at 550nm as 1.5 E is relative to standard hydrogen electrode i don't know how im supposed to calculate it from this data please help!!!

### chem please help

how do i calculate a concentration ratio of oxidised to reduced cytochrome c Fe2+ to Fe3+ given at 25 C and pH7 E(mV) as 100 and absorbance at 550nm as 1.5 E is relative to standard hydrogen electrode i don't know how im supposed to calculate it from this data please help!

### Freshmon Comp

Can someone please help me come up with a simple topic for a division Analysis Essay. It only has to be four hundred word so it cant be to general please help me its due tomorrow and i still havent got a clue, for a topic

### Algebra 1 REPOST - Please Help!

I have been trying to figure this out for a long time to no avail. Can you please help. Also, are there any rules that help figuring these out? write a rule for the function represented by the graph. domain: 0,3,6,9 range : -2,-1,0,1

### Dynamics, Please Help

A car is climbing a hill and accelerating at a constant rate of 0.3 g and at an angle of 10 degrees. What is the steady state value of the ANGLE made by a mass hung from a cord that's attached to the rearview mirror. Please Help don't know how to start.

### Psycholofgy

Please help! Is this the correct answer for the question? Please help! I said the answer is D According to ______ therapists, changing the thinking patterns of anxious individuals can greatly lessen their fears. a. cognitive b. behavioral c. existential d. humanistic

### Chemistry please help

Methanol (CH3OH) can be made by controlled oxidation of methane. CH4(g) + 1/2 O2(g) ¨ CH3OH(g) I found that the ƒ¢H‹ is -126.4kJ/K and the ƒ¢S‹ is -51.2, and the ƒ¢G‹ at 298 K is 111kJ Yet how do you Calculate the temperature at equilibrium? please show ...

### Social Studies (History)

What did Germany, Italy, Japan, and the Soviet Union aka USSR have in common before WWII? please have four reasons and please explain why these countries had that similarity.

### Calculus Please Help!

Not sure how to do this. Asked before but it was hard to type out the symbols in the equation, so I have a screenshot below. exactly Please help! s.yimg(.)com/hd/answers/i/36cad89caaff4061bf38ed04166cbd76_A.png?a=answers&mr=0&x=1412733166&s=e590dacc075a9e04963385d0d299d56a

### calculus (please help)

find the volume of the solid whose bounded by the circle x^2+y^2=4 and whose cross sections perpendicular to the y-axis are isosceles right triangles with one leg in the base. Please give explanation and steps

### Social studies

I don't want links I want answers please and please make sure it's in your own words. What are the causes of problems the Mayans and other Native American groups fate in Guatemala? How are people trying to solve these problems?

### Chemistry

. Using I2 (aq)+ 2S2O3=> S4O6 (aq)+ 2I(aq) calculate the number of moles of molecular iodine. Given that there are 0.004328482 Moles of Na2S2O3. can someone please help i have no idea how to do this question for my lab!!! if possible please explain with steps.

### 7th grade math help asap plz

6. In which quadrant is the point (x, y) located if x is negative and y is positive? (1 point) II III IV I At the halftime show, a marching band marched in formation. The lead drummer started at a point with coordinates (–2, –5) and moved 3 steps up and 1 step right. a. ...

### Simplify Polynomials

Simplify Polynomials 18x^2+6+4x-15x^2-4+13x 3x^2+6-2x+5x-4x^2+9 3x^2+3x-7x+3-5x^+2 ______________________________________________ What is the coefficient of x? -5x-4x^2+9 ______________________________________________ ADD (m^2-m-4)+(m-5) SUBTRACT (5x^2+x-3)-(-2x^3+4) ...

### Chemistry

I did a chem lab and now im not sure if im doing my calculations right .. Please help? So i have to find out what ƒÉ will equal when i use the equation ƒÉ=d*(a/ãa^2+b^2) in my experiment i found out that a equals 108 cm, d and b were given to me .. so d=1.33*10^-6 m and...

### Chemistry

I did a chem lab and now im not sure if im doing my calculations right .. Please help? So i have to find out what ƒÉ will equal when i use the equation ƒÉ=d*(a/ãa^2+b^2) in my experiment i found out that a equals 108 cm, d and b were given to me .. so d=1.33*10^-6 m and...

### math

I am a little confused on the first question of this problem could someone please check my answers and please explain why and what I need to do to get correct answer thank you Calculate the mean, and write this as a mixed fraction. 12,9,4,6,8,12,13,14,11,5,12,2,9,13 answer I ...

### History

Need help finding old newspaper articles on lapd swat please. LAPD SWAT was created in 1968, so i need an article that is from 1968-1982. I only found one and i am having a lot of trouble finding another one. Please if you know any online newspaper article websites that most ...

### Math

For the equation y = -6x, what is the slope and y intercept? The formula is y = mx + B. I know that m = the slope and B = the y intercept. So in the equation y = -6x, what is the slope and y intercept? Is -6 the y intercept or the slope? Because if it's the slope, How am I ...

### Math

For the equation y = -6x, what is the slope and y intercept? The formula is y = mx + B. I know that m = the slope and B = the y intercept. So in the equation y = -6x, what is the slope and y intercept? Is -6 the y intercept or the slope? Because if it's the slope, How am I ...

### math

in a big right triangle with a small right triangle inside of it. C is the length of the whole thing., R is the adjacent of the small tri. H is the oopisite of the small tri. B is the adjacent of the big tri. as well as the hypotenuse of the small tri. S is the oppisite of the...

### TI N-spire

ok so i kno this isnt a math prblem, but it a question that im sure many people would love an answer to. Is there any easier way to change the mode on the n-spire from degres to radians(or vice versa) without having to go into th document, graphs, and system settings and ...

### 7th grade social studies question Ms. Sue please

Can you give me links to these questions please? What did the Telegraph Lead to? What was life like after the Telegraph? Positive and negative Impacts of the Telegraph

### English

Where reading the poem "LEGAL ALIEN" by Pat Mora . We have to find the rhythm,meter, and assonance . I cant fimd any of that in the poem . Please tell me what each one of them are in the poem .. Reply ASAP please

### math (algerba 1) Please help!

In basketball you score 2 points for a field goal and 1 point for a free throw. Suppose that you have scored at least 3 points in every game this season, and have a season high score of 15 points in one game. How many field goals and free throws could you have made in any one ...

### math

a rectangle is to be inscribed under the arch of the curve y = 2cosx from x=-pi to x=pi. What is the length of the base of the rectangle with maximum area? can someone help me with this....i have a lot of problems to do just like this but i don't understand them. can someone ...

### I need help

Answer the following questions: i.Which factors are important in multitasking for thread initialization? ii.What is the use of program segment prefix and where is located. iiiWhat is the difference between the interrupt routine and the strategy routine? iv.Which bit of modem ...

### math

compound interest compute the compound interest on 1)Rs 1500 for 2years at 6% per annum. please send answer This site explains compound interest and shows the formula for solving your problem. http://math.about.com/library/weekly/aa042002a.htm

### Physics-bobpursleyplease check

This is the question I posted about two hours ago and I worked it out two ways-could you scroll down and check it, please?If I have a roller coaster, and hill 1 height is 50cm and hill height 2 is 25 cm and the PE is .9 as it approaches the top of hill 2, how do I calculate ...

### MATH 157

Can anyone please help me understand these math problems. #4. How many three-symbol codes (letter-number-number)can be made from the letters S, P, Y, and two-digits from the set of (0, 1, 2,..., 9) without repetition? #16. A pair of dice are rolled and the sum on their ...

### Math

Please help me I am terrible at math, and this is my last class before graduation.. 1. Find the value of X... x/6-x/8=1 2. Find the value of X...x/x-2-x+1/x=8/x^2-2x 3. Find the value of X...5/x+6+2/x^2+7x+6=3/X+1 4.Find the value of X...2/5=x-2/20 find the lowest common ...

### Environmental Science

Could you please explain the distinction between eutrophication and artifical eutrophication sense eutrophication is the natural process by which a body of water gains an abundance of nutrients? One is natural and occured long before man's time. The other is man caused, ...

### math

find the constant of proportionality and unit rate for the data in the table. Then write the equation to represent the relationship between time t and distance d Time Distance 2 hrs 90 miles 3 hrs 135 miles 5 hrs 225 miles 6 hrs 270 miles I don't understand how to do this kind...

### GR.10 CIVICS! LAST TIME PLEASE HELP

can someone please give me a direct link to a picture that protrays or is related to the inuit being allowed to vote in canada in 1950. actualli the picture can have any type of aboriginal groups. thanks ...URGENT

### english

Hey, I have to wright a SA on what I want to learn in English language arts this year. It's a full page SA and I'm in 7th grade. Please help me, Ive ben working on it bacicaly ever since I got home. I need help, PLEASE!!!

### trigonometry

this is exactly how the question is written and i tried to solve it but i just couldn't. Can u please show me how the work was done I don't want just the answer. using the exact values,find the value of: 12 sin 30degrees - 6 tan of 45 degress + sec 45 degrees / 52. please help!

### physics

Hi I need to know how much ground water presuure would be required to lift a 1.200m diameter plastic tank weighing 650kg out of the ground please, Please supply the answer in Kpa or psi Cheers

### Physics

Hi, I need to know how much ground water presuure would be required to lift a 1.200m diameter plastic tank weighing 650kg out of the ground please, Please supply the answer in Kpa or psi Cheers

### English

I am writing a speech and It about a boy named Edward and he lost her mom when he was young. I need a hook in a question format. Please help. What should I write. Ex: Have ever realize...... I need something similar to this. Please Help!!!!!!

### physics please help

A hoodlum throws a rock straight down from the roof of a building 109m high. If it takes 2.40s to hit the ground below, with what initial speed was the rock thrown? Please show all work

### Algebra--please help!

I really need help with my math homework today, because I am totally confused! Please give me the answer, but also walk me through it, too, so I can fully understand it, because just the answer won't really help. #1: A math teacher wants to curve a set of grades. *Just a note...

### math

someone please help me understand how this is done.state all the restritions on the variable 7x-13/x^2-16 Your problem: 7x - 13 ------- x^2 - 16 The restrictions are that x cannot equal 4 or -4. The denominator of a fraction cannot equal 0. I hope this helps and is what you ...

### algebra1/McDougal Littell

I need to know how to work this problem and show my work: 1/5x-3x+2=2/5x + 18 First rather the x so: 1/5x-3x+2=2/5x+18 1/5x-3x-2/5x=18-2 -3.2x=16 -x=5 x=-5 I don't know if this is correct. Please cheak over it. i don't unstand math. how can i?

### math

3x-5/6=7x+4/4 If you mean (3x-5)/6= (7x+4)/4 , then 12 x - 20 = 42 x + 24 and you can take it from there. If you mean 3x - 5/6 = 7x + 4/4, then the answer will be different. Please use parentheses to clarify ambiguous algebraic statements such as the one you typed.

### math,correction

can someone correct this for me please. Directions: Solve the following system by substitution. 5x-2y=-5 y-5x-3 what i received as the solution are : x = - (1)/(5) and y = 2 which it would look like: (-(1)/(5) , 2) correct.

### math

7 1/6 - 6 4/6 = ? could you please show me the steps to do this problem? thank you, ryan 7 1/6 = 6 7/6 - 6 4/6 = -6 4/6 ------- 3/6 = 1/2 mixed fractions are useless in calculations so the first thing you have to do is change them to improper fractions 7 1/6 + 6 4/6 =43/6 + 40...

### Math

There are 4 quarterbacks and 6 centers on a football team that has 60 players. How many quarterback-center pariing are possible? I think there would be 4 possible but don't know if this is correct. Please help! Thank you in advance.

### Math

If 1 zilch is equal to 13 milches, and 1 milch is equal to 23 pilches, would you accept 8000 piches for 26 zilches? Why or why not? PLEASE EXPLAIN HOW YOU GOT YOU ANSWER!

### math

Still need help please: Stan invested $13,000, part at 17% and part at 2%. If the total interest at the end of the year is $1,910, how much did he invest at 17%?

### math

A "super ball" dropped from a height of x feet bounces to a height y that is 80% of x. Can anyone please teach me how to find its numerical, algebraic, and graphical representations? Thanks a lot!!!

### MATH

I AM IN 5TH GRADE AND I HAVE AN ASSIGNMENT TO FIND THE PATTERN. THE PROBLEM IS 1,4,27,256,____. I HAVE TRIED EVERYTHING BUT CAN'T FIGURE IT OUT. PLEASE HELP!

### Math

determine vertex, focus and directrix of parabola. then graph the parabola. second equation: y^2 -4y -12x= 8 Please help me this is do 2day bc i forget to turn it in to my teacher

### math

which of the following functions have a inverse? f(x)=ab.solute value of x. f(x)=x^3 f(x)=x^4 f(x)=x^3 f(x)=x^4,xless then or equal 0. how do i know if they have an inverser, can someone please explain:) thanks for your time YOOO

### math

simplify these expressions as fractions: (26/27) + (35/4) (26/27) x (35/4) (3x/2y^2) x (2yx/x^2) and what are the restrictions of x, y? (3x^y/zw) + (tx^2y^3w^4/z) and what are the restrictions for he variables x, y, z, t, w to make the expression well defined? i'm not sure how...

### MATH 156

can some one please check if my answer is correct. Write the number in scientific notation. 15)0.000 294 Answer: 2.94x10^(-4)

### math

the width of a rectangle is fixed at 27 cm. what lengths will make the perimeter greater than 70cm? the length must be greater than _70_ cm please check if this is correct. thank you!!

### math

I donot understand how to do this practice question for a test I have tomorrow. can someone please show me step by step? (-> is an arrow) lim x-> 0 (32-32cosx)/64

### Math

Find three consecutive integers such that 5 times the first and third is 14 greater than 8 times the second. Please show all work.

### math

Factor the expression on the lift side of each equation. Then solce the equation: 8xcubed-27=0... also please show work so I understand how you got the answer.

### Math

1) use the half-angle formulas to determine the exact values of the sine, cosine, and tangent of the angle. 67 degrees and 30' Please explain!! I do not know how to start.

### to Mary - re "Math (basic statistics) ..."

Your post has been removed. Once you write up YOUR THOUGHTS, please re-post, and someone here will be happy to comment.

### Math

Round 1,643,253 to the nearest hundred thousand. I say it's 1,600,000 but the workbook says 1,700,000. Please explain.

### math

Please give am example for this formula: Debt servicing burden + (Debt payment rule-growth in wage)+ Price inflation rate

### 5 th grade math

The scores earned by the students on a recent assignment are listed below. what are the maximum and minimum of the scores? 74,80,80,83,84,85,90,87,91,92,91,93,81,95,73,82,78,94. maximum______? minimum______? please help me with this problem thank you!!

### math

when doing decimoles and multiplying them by whole numbers...for example 4.7805 multiplyed by 1000 dose the decimole go 4places over or 8places over i don't get it please help!!!

### Math

What does it mean if a line in R^3 is parallel to the xy-plane but not to any of the axes. I really don't know what this means in terms of how the parametric and symmetric equations of the line should look. Please help.

### Math

What does it mean if a line in R^3 is parallel to the xy-plane but not to any of the axes. I really don't know what this means in terms of how the parametric and symmetric equations of the line should look. Please help.

### MATH-ALGEBRA

What's the slope-intercept equation of line which is parallel to y = 2/5x-3 and passes through point (0,5) A. y = -5/2x - 3 B. y = -5/2x + 5 C. y = 2/5x + 3 D. y = 2/5x + 5 Its D, but how do u figure that out? please explain step by step.

### math please help?

Nena invested some money at 7% interest and the same amount at 10%. Her total interest for the year was $850. How much did she invest at each rate?

### Math

We need some help with these questions that we posted earlier. Please. What is the meaning of a relative frequency of 1? A rotation is described by it's ____ and ____? Thank you very much.

### Math

A pond 100 ft in diameter is surrounded by a circular grass walk 2 feet wide. Find the are of the walk. Answer in terms of π. Please help me! TY

### math

There are 6 boys and 8 girls in a group of students. Calculate the number of ways that a president, vice-president and treasurer can be selected. Please show your work.

### math

an airplane is flying at 550 km/h on a heading of 080. the wind is blowing at 60 km/h from a bearing of 120. Find the ground velocity of the airplane. Please Help! Thanks in advance.

### math geo please help?

finals next weekk D: ten less than three times the complement of an angle is it supplement. find the measure of the supplement?

### Math 116

Create an equation of a nonlinear function and provide one positive and one negative value for x. Please show steps in how to solve it as well.

### Math,Word problems(algebra)

Kai Ling has 4m kg of flour.She bought 2 more packets of flour, each of mass m kg.How much does she has now in terms of m? Please help me

### More MATH

Here's some other stuff we never learned in class: 7e-2=47 e=_____ 1/3g=8 g=_____ 5b+1=46 b=______ I don't know how to work them! Please explain as well.

### MATH HELP PLEASE!

Let c be a positive integer with 1<=c<=n. Show that the set: W ={ó exists in Sn such that ó(c)=c} is a subgroup of Sn. (The set W is called the stabilizer of c, because every element in W leaves c fixed.)

### Math- Trig please help!

A tire with a diameter of 100 cm rotates 20 times in 3 seconds. a) determine the angular velocity b) how far the tire has travelled? c) what is the speed in km/h?

### math help please

if you divide this number by 2 you will get 3 multiplied by 6. Subtract 3 groups of 3 and you will get 3 multiplied by 9. I am so confused trying to help my 8 year old figure this out i have come up with 9 then 36 then 0

### math help please

if you divide this number by 2 you will get 3 multiplied by 6. Subtract 3 groups of 3 and you will get 3 multiplied by 9. I am so confused trying to help my 8 year old figure this out i have come up with 9 then 36 then 0

### Math

THe population of Anytown in 1960 was 1,576,230. In 1990 the population was 892,560. Find the percent change. AM REALLY CONFUSED PLEASE HElp

### Math

Need help understanding 2010-2011 Transitional Unit: 06 Lesson 01- Unit: 05 TESCCC source It is called Maintain Your Balance Can someone please help?

### HELP ON MATH PLEASE!!!!!!!

John jogged downhill at 6mi/hr and then jogged back up at at 4mi/hr. If the total jogging time was 1.25 hours, how far did he jog in all?

### Math

A tuition bill was $4360. If she paid $6052 what's the percentage increase on her tuition. (Could you please show me how you get this answer so I'll have an idea on how to do the others that are similar)

### aig math (please answer Ms.Sue)

Albert bought 28 compact discs for $805.give a quick estimate of the cost of each compact disc.

### Algebra

Solve the inequality and express the solution in terms of intervals whenever possible. | x+3 | < 0.01 I know the answer is : (-3.01,-2.99) Please show me how to solve this type of math problem.