# Math(Please help)

181,141 results, page 45

### math about to have a test over this please help!

Unfortunately that is the entire problem.. Find and classify all local minima, local max, and saddle points of the function F(x,y)= -3x^2y-3xy^2+36xy There should be 3 saddle points and a maxima for sure! Please help me get the points. I can't do these maxima minima problems. ...

### math

Hello, can someone please enlighten me? MSI means 1000 sq inches, right? I would like to convert this to feet, but I have no idea where to begin. Can you please show me the steps needed or even just show me an example? I was told by someone that 1MSI is almost equal to 7 feet...

### To all students posting math questions

Please know that at least 3 of our frequently posting math tutors are away from their homes on trips. There are other very good tutors who are online, but less frequently. You'll need to be very patient.

### Math

HELLO, THIS IS MY FIRST TIME USEING THE JISKHA WEBSITE. I NEED HELP WITH MY HOMEWORK. PLEASE HELP ME WITH MY HOMEWORK! THANK YOU! _______________________________________ MY MATH HOMEWORK: 30 DIVIDED BY 10 56 DIVIDED BY 6 55 DIVIDED BY 10 30/10=3 55/10=5.5 or 5&1/2 Tell what ...

### f math

please what is the answer to this f math question......1-cos^2X=0 for 0°less dan equals X..then X less dan equals 270

### Math

Help Please: Please Help 1.Essay:Show all work,Find the Product. (x^2-2)(x^3-4x+9) 2.Find the product:(2x-4y)(2x+4y) 4.Find the product:(8x-3y)^2 a.64x^2+9y^2 b.64x^2-9y^2 c.64x^2-48xy+9y^2 d.64x^2-48xy-9y^2 (b)

### math math math

HELP ME PLEASE I AM ABOUT TO DIE Should I join the Club? At Mr. Vid's Video Rentals you can join his VID Club for a monthly membership fee of $30. Club members pay only $.85 to rent each movie. If you are not a member of the VID club, the movies rent for $2.25 each. What is ...

### Math

If the scale factor from a small figure to a large figure is given as a percent, how can you find the side lengths of the large figure from the side lengths of the small figure? PLEASE HELP ME!!! PLEASE HELP!!!!! THIS IS SOOOOO CONFUSING AND MY TEACHER NEVER REALLY EXPLAINED ...

### Chemistry(Please help)

What is the pH of a 5.06E-2 M aqueous solution of sodium acetate? I know that I would set this up the same way I did for the previous question that I posted. I am just confused on how to find the Ka. I know it is kw/kb but for what compound is what I do not know. Chemistry(...

### english

Please help me with my thesis. i have to write a thesis statement in the topic topic "Poverty in USA". like i had lots but my teacher didn't agree with those. can anyone please give me idea what to write. by starting the sentence with " Poverty in USA ....." please give me ...

### Math

I'm in seventh grade and working on this math test based on lines and planes. I'm stuck on this one question and I don't understand what the question is asking me to do. The question is: Identify a segment skew to GH. I am not asking for the answer, I am just asking what the ...

### Math radical equations

Please show me how to do these step by step because I have a test tomorow and I need to understand how to do these questions : 1. M-1 under the square root sign +5= m-2 2. 3n+10 under the square root = n+4 3. K-9 under the square root - (k under square root )=-1 4. 2h-5 under ...

### math

Dr needs 500 needles priced at 2.60 per hundred. If he pays within 10 days, she receives a 2% discount, sales tax 5.5%. What amount would you pay with the discount? My math 2.60 x 500 needles = $13.00 $13.00 x 5.5% = 72cents 13.00 + .72 = $13.72 $13.72 - 2% = 27cents 13.72 - ....

### Math

Math Problem: Find the area of a circle that has a radius of 14 feet. Round your answer to the nearest hundredth. Would someone please check the way I worked this and let me know if I did it correct or not? Thank You A=3.14 (14ft)2 A=3.14 (196) A=615.44 Im thinking I didn't ...

### Math209

I am in a college level math class and we have a question that I am suppose to answer however I looked for this in our text and online and I am not finding a direct answer to it. Here is my question, What is the meaning of the word "parameters"? Please identify a real world ...

### math

This was on my test and have a few more question that is from my test. 18.The Sum of five unequal natural numbers is 90. The second largest of these five numbers can be at the most? A.19 B.41(41 is the right answer) C.44 D.43 E.42 please show work. 22.In what month does the ...

### Math

Part 1: Write two conditional statements for which the converse is true. 1. Statement: 2. Converse: 3. Statement: 4. Converse: Part 2: Write two conditional statements for which the converse is false. 5. Statement: 6. Converse: 7. Statement: 8. Converse: Listen my grandmother...

### Math

Please check these - as we were told they were wrong by a teacher: Find the mean, mode, median and range of the following 2 problems. 1. 70,31,13,12,31,53 mean - 35 median - 31 mode - 31 range - 58 2. 50,47,50,31,37,51,34,72,15 mean- 43 median - 47 mode - 50 range - 57 If I am...

### math

mr. pursley, have you ever worked geo., trig. etcwith no calu.s with the heat on , when it had to be right?wheather you blew up your target or something else or the bld. collapsed or was built in the correct place? i'm not an answer grazer, but qam an answer seeker.I'm trying ...

### Math - Oh my gosh please help!

Lisa's Running Distances Day Distances (in kilometers) Monday 2.05 Tuesday 4.10 Wednesday 3.80 Thursday 1.95 Friday 4.05 Estimate the average distance, in kilometers, Lisa ran for the five days. Explain your estimation strategy. Based on your previous answer, estimate the ...

### MATH

Suppose 10,000 is invested at 6 percent.how much additional money must be invested at 8 percent to produce a yield on the entire amount invested of 7.2 percent. ( Please show each and every steps of this math with the rough works) THANK YOU SO MUCH.

### Math Inequalities

-9/8x greater than or equal to -1/16 can someone please check my answer? my answer is x greather than or equal to 1/18 is this correct? if not what is the correct answer and what is the correct way to solve this problem..maybe I missed a step or did not do math correctly....

### English

Posted by rfvv on Thursday, December 16, 2010 at 3:40pm. Posted by rfvv on Thursday, December 16, 2010 at 3:21am. {At a restaursant} For hear or to go? Is this for here or to go? It's for here, please. It is to go, please. (Are the expressions above all grammatical? What is ...

### Math (Please help!)

Consider the following function. f(x)= x^2 - sqrt(x) Find the equation of the line tangent at the point (1, 0). the answer would be 6, duh

### Math- please check

I have to write a word name for 8.032 Eight and thirty two thousandths. IS this correct? Looks good to me.

### Algebra

I have a math problem that I can't quite figure out. I know the answer is one of two that I've gotten, can you help me please. sqrt64/y^2 =8/y or 8/y^2 Thanks so much!

### okayyy... help please?!?

my question is still not answered, so I was making sure you actually saw it... its down there.. its topic is math, name : Jason

### math

I have a question in (( distance between two points )) show that A(4,2), B(-2,-2) and C(2,-8)are the vertices of an isoceles right triangle. please in detales .. thank u

### math mortgages please check answer

The monthly payment on a$100,000 mortgage at a rate of 8 1/2 % for 20 years is 8678.23 I am not sure

### Math

Is it possible for a cubic function to have only 2 real distinct roots, each of order 1? Explain why or why not. Include examples. Please, and thank you .

### Math

34. Arrange in order from smallest to largest. 2.05,25/10 , 2.0513, 2.059,251/100 , 2.0515, 2.052, 2.051. I do not understand how to do this, please help me.

### Math

34. Arrange in order from smallest to largest. 2.05,25/10 , 2.0513, 2.059,251/100 , 2.0515, 2.052, 2.051. I do not understand how to do this, please help me.

### Math

Can you show me how to do this and give me the final answer please. need help Find the equation of the line containing the given pair of points. (2,4) and (6,5)

### math urgent...:(

Write the equation of a line perpendicular to 2y=3x+4 and passes through the point (7,-2). Please help me i have no idea in this. and please4 explain me how you did it. thanks.

### math calculus

Hi could someone please explain to me how i would use the chain rule dy/dx = dy/du(du/dx) to solve for y= sin(x+y) - im looking for dy/dx i don't understand the steps thanks

### Math

Twenty equals four decreased by twice an unknown number. I need the equation and the solution please I'm almost finished!!!!!!!!!!!!!!!!!!!!

### 7th grade-math

I need to find the linear system for the equations 4x+3=y and x=y-2 Any help at all would be great! And please show me how you did it if possible, thanks!

### Math

Can someone please help me with this question? Evaluate the numerical expression on a calculator. Round your answer to the nearest whole number. 34*15 364 ----- * --- 5 52

### math

Simplify and evaluate using distributive property of multiplcation 3x-4(2x-5) I've tried many ways and can't come up with the same answer as the teacher. help please?

### math

If f(x)=5cos(2ln(x)), find f'(x). My answer is (-5sinx)(2lnx)+(5cosx)(1/x) I just did the product rule can you verify if this is correct please!

### math

hi, i am in forth grade i need to know what factors means. now for my home work. can you please respond and in a way i can under stand.

### math- Algebra 2

I have absolutely no idea how to do this please help! Find the sum: it has the sigma sign with 12 at the top, (10k-8)(6k+7) in the middle and k=1 at the bottom

### Math

Can someone please check this to see if I have reduced to simplest terms: {(-x-y)X(x-y)}/{(x-y)^2 + (x+y)^2} I get -1/2 (x-y)(x+y)divided by (x^2+y^2). Is this right and if so, can it be simplified any more? Thanks so much.

### Math

Can someone please check this to see if I have reduced to simplest terms: {(-x-y)X(x-y)}/{(x-y)^2 + (x+y)^2} I get -1/2 (x-y)(x+y)divided by (x^2+y^2). Is this right and if so, can it be simplified any more? Thanks so much.

### Math

Can someone please check this to see if I have reduced to simplest terms: {(-x-y)X(x-y)}/{(x-y)^2 + (x+y)^2} I get -1/2 (x-y)(x+y)divided by (x^2+y^2). Is this right and if so, can it be simplified any more? Thanks so much.

### Math

Write an equation in a standard form of the line that passes through (3,1) and has a y-intercept of-2 . My book does not have problems like this so PLEASE help me!!!!!!!!!

### 3rd grade math

In which division sentence is 8 the divisor? a) 8/2=4 b) 40/8=5 c)8/4=2 d) 48/6=8 I think it is b or d. I forgot my book at school, so I don't have any examples to look at for help. PLEASE HELP !!!!!

### math

find the midrange of these: 1.5, 2.5, 3.0, 1.0, 1.4, 3.5, 1.8, 1.8, 3.3, 2.2, 2.8, 1.8 I thought you take the highest - the lowest and then divide by 2, but the answer I get is not one of the choices. Show me the formuula please? Thanks!

### Math

Factor each expression completely. Can you please show me the steps for these. I'm so confused and don't know how to do them. Thank you so much!! kx^3+2kx^2-63kx and 3xz^2+42xyz+99xy^2

### Math

Given A=(1/2)(h)(a+b) Find: a. A if h=25, a=15, b=42 b. h if A=260, a=8, b=5 c. a if A=322, h=14, b=15 d. b if A=448, h=16, a=25 This makes no sense to me whatsoever. Please clarify as to what I'm supposed to do? Thank you very much!

### math

what is the probability of selecting an eight followed by a nine from a deck of 52 cards if the first card is replaced before second is drawn? please help me.

### Math

Add. Simplify, if possible. 4d/(5d-10) + 2d/(10d-20) I am simply having a difficult time with this one. Could you please just get me started? Thank you in advance!

### math

What is the solution of 7 + m is greater than or equal to 2 and m + 1 is less than 2? Please explain or show how you got the answer-I'm having a really hard time

### Math

What is the solution of 7 + m is greater than or equal to 2 and m + 1 is less than 2? Please explain or show how you got the answer-I'm having a really hard time

### Math

Find the Quotient and remainder using long division. 1. (x^3+1) / (x^2+x+2) 2. (14x^3-16x^2+10x+8) / (x-1) Please explain because I want to learn how to do this correctly. Thanks

### math 8th grade

I need to combine like terms. Here are a few questions that I am having trouble with. -r - 10r n-4-9 -4+7(1-3m) Please help ! thank you.

### Math Please Help!!

Simplify. You may use the properties to help. When you type your answer, do not space between numbers and symbols. (-5a)(3b)(2c) Would this equal -30abc?? HELP!

### Math

Please Help! (R=restaurant) If R1 is 480-8t-0.8t^2 and R2 is 254+0.78t, how would I write a function (R3)that represents the total sales for the the two restaurants?

### MATH>>>>look.need.help.please.

what is the value of the expression (4.32 x 10^-3) + (6.025 x 10^-3) ? i came up with either 0.010345*10^-3 or 10.345*10^-3 and when i check them they're both wrong.

### Math

What is the probability oi rolling a total of 7 in two rolls of a standard die if you get an even number of the first roll? Could someone please help me? Thanks

### 3rd gr math - Tenths

Question reads....Explain how to find the mix number and decimal for nine and one tenth. Please help.

### math

please help, a field is in the form of a parallelogram whose base is 420m and height is 3.6 dam. find the cost of watering at 10 ps per sq.m

### Math - 2

Solve the exponential equation. Express your solutions in exact form only. Please show all of your work. (e^(2x) – 10e^x) / 13 = 3

### Extremely hard math

This isn't a homework or scool question, or anything like that, so please don't try to rush this, it's not that important... but what is the square root of pi??? :)

### Math( help please ! )

In class we learnt operation with radicals how would you answer a question like this determine the length of the line segment from A(-2,7), to B (4,1)?

### Math-URGENT,

Given that y varies directly with x, write a direct variation equation that relates x and y. x=1/3 <---(fraction), y=2 **Provide an explanation as well, please.

### math/ calculus

full work out with explanation of this problem please we're working with derivatives and i don't understand it given h(x)= cotx/x find h'(pi/2)

### math (Urgent)

What is the angle (in standard position - i.e. measured counterclockwise from the positive x-axis) formed by a line from the origin to point (1,-2)? Please help and Thank you

### math

hi, I need help with these questions: factor 9(y-1)^2-25 16x^2+76x+90 3x^2-27(2-x)^2 -p^2q^2+81 please help. i tried to do it but I did not get it. and if you can kindly also explain the steps. i would appreciate it. Thanks.

### help me please math

Write the standard equation of the ellipse with the given characteristics this is due in the morning I have no ideal how to do it vertices:(-8,1)(0,1) (-4,7) (-4,5) center:(-4,1)

### Math - Functions

I've been working on this function for quite awhile and just can't seem to get it. Inputs x 5, 6, 7, ? Outputs y 50, 72, 98, ? I need the equation too. Please help!

### Algebra

Find all intervals on which the given expressions are positive. (x-1)(x+2) I know the answer is : x<-2, x>1 please show me the steps on how to solve this math problem.

### 7/8 Math

what is the value of x in: -x/3 + 4 = 20 Could you guys please tell me how to do it and include the answer. I have other problems like this where x is negative so I just need to know how to do it :) Thanks!

### MATH

HELP? Exam in 20 mins -dont' have any idea how to do this question; please helpp.. anyone! PLEAZE A.S.A.P. minimize p= 15x +18y subject to x+2y<=20 3x + 2y>= 36 x>=0 y>=0

### Math

A line horizontally drawn from the center of the circle. A. Radius B. Axiom C. Circumference D. Vertex I chose a and I was told I was wrong Help please

### Math

Find the length of the longest steel rod which could fit into a cardboard carton of dimensions 1.2 m by o.8 m by o.6 m. Please show your workk :)

### Math (Calculus)

Use implicit differentiation to find the slope of the tangent line to the curve y/(x–9y)=x^6–2 at the point (1,-1/-8). Can someone please help me? I don't understand

### Math

Compute the following -7/2 x 9^-3/2 + 3/2 x 9^-5/2 + 14 7/2 is a negative fraction. the entire fractions are multiplied by 9 raised to their respective exponents. I can't figure this out. Please help?

### math help please ASAP

The ______ system uses all of your body’s senses to help maintain homeostasis. Is the answer "control"? Or is it "endocrine"?

### Math

The sunglasses that Ramon wants to buy are 50% off the original price of $85. If he has to pay 6% tax, what will the glasses cost? Please help me by answering and explaining.

### math

Find the sum of all primes p, such that p divides up, where up is the p- th Fibonacci number. please tell me the answer it's urgent about this..///

### MATH

I don't understand this,so can you please explain more clearly. Where did you get the 1/5? 1.The point P divides the interval joining A(-1,-2) to B(9,3) internally in the ratio 4:1. Find the coordinates of P.

### MATH

I don't understand this,so can you please explain more clearly. Where did you get the 1/5? 1.The point P divides the interval joining A(-1,-2) to B(9,3) internally in the ratio 4:1. Find the coordinates of P.

### math

I understand the Fibonacci Sequence (the simplified version). But how is it applied to real life? Please give at least two examples. Thanks

### 8th grade math

I am not sure if I did it correct, can you please check this answer for me, Ms.Sue? :) Writing equations in point-slope form: m:3, p:(-1, -2) (y-y1) = m(x-x1) y-(-2)=3(x-(-1)) y+2=3x+3 y+2-2=3x+3-2 y=3x+1

### Math

Find the value of x 40-x/3=4 please not the / means a fraction. I already know that x is 28 when I first saw the question but I'm not sure how to show my working out.

### math ergent help someone please

Explain how to use end behaviour to find the equation of the horizontal asymptote of a rational function.

### math

If x is greater than 1 find the sum of infinity of x(squared)/x-1;x;(x-1).... And also the value of x for the given series (replace(;) with (add sign) please help

### Algebra 1

Hi! I'm doing my math homework, but I got confused. Can someone please help me how to solve simplest radical forms with an example? With square roots?

### math

What is the average monthly income for these weekly incomes: $299.34, $203.49, $305.39, and $225.30? This is all the question gives me. Please help.

### MATH

Please help I am supposed to verify that cot^2x+tan^2x =sec^2xcsc^2x-2 I just can't seem to get the two equations to equal to each other.

### Math

Hi could you please solve this as quick as possible, thanks. A tree 34 m high cast a shadow 12 m long. The angle of the inclination of the sun is closest to: A 70 B 21 C 69 D 19 E 79 Thanks

### math

help please The measures of the sides of a right triangle form an arithmetic progression whose difference is 1. Find the measure of the hypotenuse

### Math 221

Need help please explain how to get the answers for these two factoring problems and for the second problem with the "ac method". 2a^2+1+3a 15x^2+31x+2

### Math 221

Need help please explain how to get the answers for these two factoring problems and for the second problem with the "ac method". 2a^2+1+3a 15x^2+31x+2

### Math

a camera's focal length, F, is related to the distance from the subject, S, and the image distanc, I, by the equation 1/S+1/I=1/F Please show all your steps! thanks you

### Social Studies (SS)

Sorry I accidentally put math but can you please Describe George Washington's expeditions into French territory.

### 6TH GRADE MATH

Use an example to describe the multiplicative relationship between two equivalent ratios. Can someone please help me?

### Math, Please Help!

Find the number of ways to arrange the letters in the following words: A: Ohio B: Alabama C: Illinois D: Mississippi E: Tennessee