# Math(Please help)

181,141 results, page 67

### please give me a site or answer!!!!

description of the population statistics LOCATION in South Carolina already found the age and race just having trouble with the location statistics please help!!!!!!

### Government Help Please

A major feature of newly created federal system of government is that it gained its power from ____ 1) the people 2) the national government 3) the state governments 4) the executive branch of government Please help.. thanks

### Geometry (Please check my work)

Find the image of O (-2,-1) after two reflections, first across the line y=-5, and then across the line x=1. I believe the answer should be (-1,-6) Can someone please confirm?

### Algebra

3. What would be the simplest way to solve the system? y=1/2x 2x + 3y = 28 A. Graphing B. Substitution***** MY ANSWER! C. Elimination D. Distributive 4. What is the solution of the system? y=-3x 2x + 3y = 6 A. (2,6) B. (-1,3) C. (-2,6)*****MY ANSWER! D. (1.5, -4.5) Please help...

### Math(Please check)

evaluate the integral integral of 3 to 2 x/(x^2-2)^2 dx u=x^2-2 du=2x dx 1/2 du = x dx integral of 1/u^2 du -1/(x^2-2) Then I plug in 3 and 2 and subtract them form each other -1/(3^2-2) - (-1/(2^2-2) Is this correct?

### Math Please Help !!!!!!!!

How many yards must be gained after a loss of 3 yards to have a total gain of 10 yards?

### Math

Proving identities: tell wether or not f(x)=sin x is an identity (Does it simplify to Sin x) ? Please help (sin^3x)(1+cot^2x)

### math

Please calculate, I need help: [(600950000 / 884452900)(.1560) + (447000 / 884452900) + (247430000 / 884452900)(.0825)]

### math

The area of circle c is 81 pi . if the radius of the circle is doubled, what is the circumference of the new circle ? please answer and explain

### Math

A school hall has 30 rows of seats. Each row has 28 seats.How many seats are there. please show work out.

### Math

The sum of four consecutive even integers is the same as the least of the integers. Find the integers. Help please!

### Math please explain how to do this

how do I find the value of x in the following: (x-520,000)/[(800,000+880,000)/2]=

### Math

Recipe needs to make exactly 10 cups. 5 ingredients. Using 1/3 cups and/or 1/4 cups only. Please help.

### Math

Darryl bought a surfboard from Wave Bye-Bye that was on sale for $140. The original price was $280. What fraction off was the discount? Wouldn't it have been 50% off if 140 is half of 280? unless it's a trick question... Mabey I guess I will put that. Thank you for your help. ...

### Math Middle School

Please help. I do not have any idea about how to get started on this or finish it. I was told that the answer that I got was not the complete answer that was needed for me to submit. I do not understand how to extend the problem. I am not able to follow the pattern. This is ...

### Math Help !

For this x^(4) < x becomes x^(4) - x < 0 becomes x(x^(3)-1) <0 then I don't get how it becomes this x(x-1)(x^(2)+ x + 1) < 0 How would you find that out? Could someone write the steps Please

### MATH PLEASE HELP!

True or False? If the inverse function of f exists, and the graph of f has a y-intercept, the y-intercept of f is an x-intercept of f^-1

### Math

Could I please have some help with this Calcuate the following and simplify where possible 3/7 divided by 2/3 1/4 divided by 5/6 1/3 divided by 5/12

### Math

In an arithmetic sequence, the first term is 5, and the fifth term is 21. What is the second term? Help please ASAP!!

### Math

List these numbers from least to greatest: 4 over 5,3 over 5,and 3 over 4 Please help me with a cherry on the top!!!

### Math SL

An Arithmetic sequence has a tenth term of 17 and a fourteenth term of 30, ind the general term PLEASE HELP!!!!

### Math

consider the equations:f(x)=-6x-1 and g(x)=4x^2 Select the solution for (f+g)(x) A) -6x-1+4x^2 B) -24x^3 - 4X^2 C) -24x^2 - 1 D) -6X -1 - 24X^2 I think the answer is A. Please help

### Math (algebra)

Multiply (3x – 7)(3x – 5) A. 9x^2 + 6x + 35 B. 9x^2 + 36x + 35 C. 9x^2 – 36x – 35 D. 9x^2 – 36x + 35 I said it was letter A, but I got it wrong...please help

### Math

A lawn is 3 m by 5 m there is a path 1 m wide laid around the lawn. Find the area of the lawn (Please help)

### Math

Please show me how to write an equation in slope intercept form for a line with a y intercept of -1 and an x intercept of 4

### Chemistry

Following question I need help with part b) Please verify my answer for part a) too if possible. Consider the following reaction for silver tarnishing: 3Ag2S(s) + 2Al(s) -> 6Ag(s) + Al2S3(s) a. State the oxidation number for each element in the reaction. 3Ag2S(s) + 2Al(s...

### Math HELP PLEASE

1.My family went to starbucks. My daughter and myself ordered drinks that were the same price. My son's drink was 5.00 dollars more than my drink. The total bill was $18.50. How much was each drink? 2.There were candies on the table. Andy grabbed 50% of the total candies, Bob ...

### Physical Science

Objects accelerated to relativistic speeds....live shorter or grow bigger? Please note that we don't do students' homework for them. Once YOU have attempted to come up with a response to YOUR questions, please re-post and let us know what you think. Then someone here will be ...

### english

i need help writing a "i am" metaphor poem. The format is 10 lines of I am metaphors and the 11th line is what you are like i am annoying or i am blonde or something. PLease help it is due tomorrow! Someone here will be happy to give you feedback on what you write. Please ...

### 7th grade

My textbook question is: Please look at page 38, Figure 2.6: "How do historians know Cartier traveled these particular routes? Where might they have found supporting historical evidence. The picture is just a map with the guys travels. (arrows and lines ect) Please help!

### science

How ionising radiation affect the cell, DNA and can lead to tumours /leukaemia? nothing too complex please note form will be fine, in which I can use it in my explanation. if you can please put it in your own words as I find it much easier to understand and explain in my ...

### SCIENCE

How ionising radiation affect the cell, DNA and can lead to tumours /leukaemia? nothing too complex please note form will be fine, in which I can use it in my explanation. if you can please put it in your own words as I find it much easier to understand and explain in my ...

### Language Arts

which of the following citations in a work cited page uses proper MLA style Please help do today! the examples are Paul, Smith. The Night on the river. New York: Penguin 1987.Print please write it out for me how it should look thanks.

### MATH PLEASE HELP!

Solve each system 3x+2y= -2 9x- y= -6 I know how to solve for x but i get really lost trying to figure out how to solve for the second variable

### math

if 3M/2N=0.125, what is the value of N in terms of M? This is the workout solution.... 3M=2N(0.125) 3M/0.125=2N 24M=2N 12M=N I still don't understand....Please help..

### math

Need help with these problems please. I do not know how to break them down correctly. Thank you. 4x7+6-10 divided by 5 7-16x3 divided by 8+5 25 divided by 5x5+6-4

### math

Please help me I'm stuck on this one: (5x4)-2=12+ I'll try (5x4) 20-2=12+ answer 18 or (5x4) 20-2=18 12+18=30 Really I don't think either is right

### MATH Please help me

Male: 60,63,65,70,66,80,85,73,79,80,83,85,81,76, 77,90,91,88,78,92 Females: 62,69,70,72,78,77,79,83,80,88,90,90,98,100, 66,67,65,63,69, 83 Can you hellp me I need to find: A) P value and the Z value of this data with a Alpha Value of 0.05.

### Math

If the Risk Free Rate is 2% and the expected inflation rate is 3%, what is the nominal interest rate? Please show formula.

### Math

for the given functions f and g find the following and state the domain of each result f(x)=3x+1/8x-9; g(x)=5x/8x-9 A) (f+g)(x)=? B)domain of (f+g) c) (f/g)(x)=? d) domain of f/g? please show work

### MATH

for the given functions f and g find the following and state the domain of each result f(x)=3x+1/8x-9; g(x)=5x/8x-9 A) (f+g)(x)=? B)domain of (f+g) c) (f/g)(x)=? d) domain of f/g? please show work

### Math

Prove identity Cot⭕sin⭕sec⭕= 1 How would i do this one please help me. Thankyou

### Math

Jeremy has 19 coins of 2 different values. The total value of the coins is $1.00. What are the coins? How many of each coin does he have? Explain please

### math

Which of the following homogeneous systems have a nontrivial solution? 5x+ y + 5z =0 −2x + 2y− 4z = 0 4x− 3y + 6z = 0 can someone please explain how you know

### Math

Please help me find the slope of a line that is perpindicular to the line to the line containing the points -2, -1 and 2, -3. m = -2 m = 2 m= -1/2 m = -1 I think it is a, but I have no idea

### MATH HELP

I need help to find out the area of base, how to find it and how to find the total volume for a cone on a cylinder please help

### math

I've done these problems for the past 4hrs and i can't get them right please its my only questions left.1-12 1.x + 3 > 5 2.7 > x + 5 3.x - 8 ≤ -6 4.-4 < -6 + x 5.9x > 18 6.-3x > 6 7.x/4>0.5 8.x/-14>1/7 9.-10 ≥ 5x 10.-16 ≥ -8x 11.-4x < ...

### Chemistry

Hi, please can someone tell me if this is the right number of significant figures. 8.1 x 10 to the power of -3 would have 2 sig fig 910 would have 3 175.0 would have 3 please can some tell me if I've got this right Also how would I report each of the following measurements ...

### Math

The height was 30, the width was 25,and the length is 20. What is the volume, in cubic inches, of the block of ice? I think you multiply 30x25x20 and get 15,000. The answer is 15,000 cubic inches. Harry wants to make another block of ice with the same volume. He needs one ...

### Math

I really need a math dictionary... I need the following definitions Please: point line intersecting lines parallel lines vertical lines horizontal lines acute angle obtuse angle right angle square rectangle trapezoid rhombus pentagon hexagon octagon triangle circle chord ...

### Health please check my answer

Please check my answer thanks The radiologist is able to evaluate the movement of body organs by doing what procedure A. Ultrasound B. MRI C. Film survey D. Fluroscopic exam I picked A

### Algebra......Help Quick!!

12a^3bc-18a^2bc^2+6a^2c, x^2+20x+36, 12x^4-8x^3-4x^2, x^2+36x, 9x^2+6x+1, 6x^3+11x-10, x^2+3x-6..............can someone please help me solve some of these problems if not all. I have forgotten how to solve them can someone please help..Thanks

### Science- Chemistry

Could someone please explain a few things? First off, how do you change a normal compound or element and change it to an ion? And second, could you please explain the net ionic equations?

### physics - please explain further

Can someone please explain the answer I got for a question I previously posted on this page? I don't understand the solution I was given and even when I try it, I'm not getting the right answer.

### Algebra 1: 8th Grade

Simplify each expression. Write your answers using positive exponents. Check Answers Please: 1) 2^3*2^4 = 2^7 2)10^6/10^9 = 1/10^3 3)3^5*3^1 = 3^6 4)5^7*5^-4 = 5^3 5)9^3/9^-10 = 9^13 6) 4^11/4^8*4^-2 = 4^5 7) a^2*a^3 = a^5 8)b^-9/b^4 = 1/b^13 9)c^-5*c^-2 = 1/c^7 11)(5d^4)(8d^6...

### Grammar and Composition

can someone please help me by giving me suggestions for a topic,for my Descriptive Essay it can be about anything; that can be described please give me some suggestions. because i'm not sure what to write on, and i'm going to be asking for help a lot in the essay too.

### please please help

Nico is saving money for his college education. He invest some money at 8%, and $1300 less than that amount at 5%. the investments produced a total of $234 intrest in 1 yr.How much did he invest at each rate?

### Calc. Help Please.

Find the value of the definite integral using sums, not antiderivatives: int= integral sign int((x + 2)/(x^(3/2)),x= 16..25)dx Please help... even just showing me how to get started would be greatly appreciated.

### CHEM AP please help!!

Using Heisenberg's uncertainty principle, calculate the uncertainty in the position of the following. a 1.32-mg mosquito moving at a speed of 1.61 m/s if the speed is known to within ± 0.01 m/s i tried every way and still cant get it..please someone help

### chemistry(PLease Help)

An aqueous solution contains 0.223 M carbonic acid and 0.112 M hydrobromic acid. Calculate the carbonate ion concentration in this solution. [CO32-] = mol/L. Can you please help me how to solve this problem?

### Chemistry(Please, please help)

I am trying to draw a constitutional isomer for the compound CH3CH=CHCH3 but I am having some trouble. H-C-C=C-C-H I drew the first compound like this with more hydrogens on the Cs. How could I draw another strucutre?

### college algebra--please help

Form a polynomial f(x) with real coefficients having the given degree and zeros. degrees 5; zeros 1; -i; 7+i please show all work. I am having a hard time understanding this.

### college algebra--I really need help!!

solve the following exponential equation. exact answers only. 1-9x 2x 2 = e I hope that you understand this question. I don't and need some help please. Can you show all answers please.

### Help triangle angles!

Points D, E, and F are the midpoints of sides BC, CA, and AB of ABC, respectively, and CZ is an altitude of the triangle. If <BAC=71, <ABC=39, and <BCA=70, then what is <EZD+<EFD in degrees? Please help I tried making a picture but its not helping....please help!

### Algebra-help please

I already asked this question once about the absolute value of 3x-2=8 and absolute vale x+1=1....value of x?...and the answer I received was does 0 or -2 satisfy both ....they dont...so is it no solution? Please help - I do not understand this problem....Thanks

### algebra

|x| + 5 = 18 5 or -5 13 or -13*** |y + 4| < 1 -5 < y < -3 -3 < y < 5***? -4 < y < 1***? 1 < y < 4 |2t| - 5 = 7 t = 1 or -1 t = 6 or -6*** t = 10 or -10 t = 12 or -12 |a| -3/4 = -5/8 1/8 or -1/8 7/8 or -7/8 1 3/8 or -1 3/8 no solution Please help!? ...

### Chemistry

What materials would be produced in the electrolysis of the following reagents? Please make sure that you correctly balance the equations! Also, please note the states of the reagents. NaCl (aq) --> NaCl (l) --> KBr (l) -->

### Please Proofread my Essay

I've made plenty of changes to my essay. Could you please proofread it? Thanks! Is Beauty Really Skin Deep?

### physics-bobpursley/drwls please check

bobpursley/ drwls please help me with my post on Sunday, April 15 at 10:16pm and 10:19pm. Thanks!

### ALGEBRA HELP NEEDED PLEASE!

Please see the Algebra post on the current question page. Help still needed and appreciated thank you

### algebra please help Dr.Bob

please Dr.Bob answer this for me...i have to got bed soon...i really need to know the answer!!

### English

1. Can I say who is calling please? 2. Who's calling please? (telephone conversation) Are both the same? What is the meaning of 'say' in #1? Does it mean 'ask'?

### precalc. please help:)

(square root y-3)^2=(1-square root 2y-4)^2. how do i do this???? i am clueless, pleaseeee help!!!! i^-7. how do I do this please describe! thanks for your time and help, I really appreciate it:)

### English-help please

Could someone please take a moment to take a look at my previous post on English. Thank you very much:-)

### Calculus Please Help

Find k for which the limit below exists, and find the limit. lim x->1 (2x^2 + kx +4)/(x-1) Please show me how to do both procedures. Thanks

### geometry A please help

given <A compl to <B <C is compl to <B <A=(3x+y) <B=(x+4y+2) <C=(3y-3) find the measure of all 3 angles show all work please I don't know how to do it thank yu

### Earth Science

20. Contrast point source pollution and nonpoint source pollution. Can someone help me please?!?!?! Asap please?!?!?!?!

### maths(PLEASE HELP!)

The mass of a 10p coin is 6.5g find the mass in kilograms of the coins in a £10 bag of 10p. Answer please:?????????

### PHYICS URGENT URGENT PLEASE PLEASE PLEASE HELP ME!

A uniform ladder of length 20.0m and weight 750 N is propped up against a smooth vertical wall with its lower end on a rough horizontal surface. The coefficient of friction between the ladder and this horizontal surface is 0.40. (b) Work out and add the numerical values of ...

### Math

Mascot: Number: Bisons 17 Cougars 4 Huskies 18 Knights 32 Other 3 a. About how many students would vote for the Huskies if the entire student body of 1600 voted? About how many would vote for the Knights? b. Suppose the students surveyed were in the spanish club. Do you think ...

### Math

The directions say to use a grapking utility to approximate (to two-decimal-place accuracy) any relative minimum or maximum values of the function: y=x^3 - 6x^2 + 15 Can someone please help me because my graphing calculator is not working!!!

### 3rd grade math

the greens family they had 8 people plus 2 they r going to disenyland they have $3.40 and each person cost 38 cents will they hav enough money to go to thier destionation please explain

### math-rational equations

how do I solve 5/x-3+3/x+3=7x/x^2-9 please explain in detail, I am having trouble once I get to the part where I need to simplify. I have so far the LCD is x^2-9 then the equation changes to (x^2-9) 5/x-3+(x^2-9) 3/x+3=(x^2-9) 7x/x^2-9 or (x+3)*5(x-3)*3=7x after this I'm stuck...

### Math

How do find the inverse function for this problem: f(x) = -(x+3)^2, x is greater or less than 3 I know the first thing you do is switch the variables, so it looks like this: x = -(y+3)^2 Then expand: x = -y^2-6y-9 And solve for y: x + 9 = -y^2-6y I get a little confused after ...

### Math

1.Say I am dividing 4xcubed + x + 7 by x+15 do i need to add in an x squared or can I divide it how it is? Sorry that is confusing 2. I have a question that says, "on what bounded intervals is the function increasing/decreasing" (on a graph). I'm not sure what it is asking for...

### math

a room has a floor area of 1,025ft^2 and a 10-ft-high ceiling. the houing code requires at least 200ft^3 per person.what is the maximum number of people allowed in the roomm please help me i am confused

### Math

Please help, I need to write down the complete solution for the equation x^2 -3x+0 So far I have added 3x to both sides giving x^2 =3x Now I am a little stuck! Any help would be very much appreciated

### english

How do I teach my first grader the parts of a sentence. She gets the subject confused with predicate. She had a test and she was given a 33F. I want her to succeed in school. She scored 100 in her reading and math. Please help me!

### math

How can you make 7 by only using the digits 1, 2, 3, and 4? You can put two numbers together (ie 12 or 34). You can use the operations: addition, subtraction, multiplication, (NO DIVISION!!), exponents, and parentheses any way you want!! Please help!!!! I also need 13, 17, and...

### math

my teacher gave me exam review booklets and there is something i don't understand.. the question is : Find the slope of a line that passes through the points (-9,-3) and (-7,-1). if someone can please explain to me how to solve this it would help majorly ! :)

### Math

Please let me know if is it true? If exactly 15 seconds of speech are to be sampled at a rate of 44 100 samples per second and each sample is represented by 16 bits of data, then the resulting file size will be more than 1.4 megabytes.

### Can someone help me please? MATH

Identify the sampling technique used to obtain this sample: Each person boarding a plane is asked to flip a coin; those showing “tails” have their luggage searched.

### Math

An average song is 5,000 bytes (5B). ow many songs can an 4 gigabyte mp3 player store? I'm not looking for an answer, but please explain how to solve this problem? I'm confused. There are many other problems like this on my homework and I don't know what to do.

### math

ok so i havent done domain and ranges for a while so i need some help this is just a generic question but i want to make sure i know how to do them before starting calc so can someone please explain how i would heres a function f( t) = t+ 3 /(t2 – 5t – 66),

### Math

How much must you deposit in an account that pays 6% semi-annual interest, compounded annually, to have a balance of $9000 in 15 years? I'm stuck with this question, please explain the steps for the answer.

### College Algebra

Hello, I have been trying to do my math homework for a few hours now and can not figure out how to find the indicated intersection or union in interval notation. Example: (-1,5)n[0,8) Please help me!!

### math help please

2. A teacher asks her class of 22 students, “What is your age?” Their responses are shown below. 19, 19, 14, 14, 16, 19, 19, 16, 16, 15, 17, 16, 17, 16, 15, 14, 15, 15, 17, 14, 16, 15 Find the mean, median, and mode for the data. If necessary, round to the nearest tenth. (...

### math Ms Sue help??

Calculate the area of the trapezoid, which is not drawn to scale. Is this formula right? A = (5+4) x 11/2 =49.5 Paraell sides are 8 in and 11 in. top is 5 inch bottom is 4 in. Wtih two little boxes on each side. Please help me understand ?

### Math Help

This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS). Please answer this ASAP! Thank you so much whoever answers! :)