Math(Please help)

183,433 results, page 46

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

math

The line segment joining ( -3,-4) and (6,11) is to be divided in to three (3) equal parts. Find the coordinates of the point of the part closest to (-3,-4). Please help me..

math

How many products do I have to sell at $19.99 to make a billion dollars. please show me how you figured the problem out. Thank you and Happy Holiday

Math

What is the smallest integer that can possibly be the sum of an infinite geometric series whose first term is 9? Please explain in steps.

Math

What is the smallest integer that can possibly be the sum of an infinite geometric series whose first term is 9? Please explain in steps.

Math

What is the smallest integer that can possibly be the sum of an infinite geometric series whose first term is 9? Please explain in steps.

math

how is GCF and LCM different? im in 4th grade and i tried to understand but my mum said shes not sure so please i need help

Math-urgent-mid term exam review question

Please help me simplify. I keep getting some weird answer. 3x^2(4x^3-2x^2+6x)-(x^5+5x^4-4x^3)+7x^5

math

whats 9 plus 10 many people are saying 21? i don't get it is there another way? please answer me im really confused of the question i have no work to be shown

5th grade Math

4 x blank is greater than 12 but less than 16. Answers can be in mixed fractions and/or improper fraction. Can someone please explain how to do this?

math: in and out table rules

0 -> 24 1 -> 21 2 -> 18 Hint: arrange in order: 0 -> 24 1 -> 21 2 -> 18 What's special about the "in" numbers here? Please help me find the rule

math please help

In a triangle, we have <ABC = <ACB = <DEC=<CDE, BC = 8, and DB = 2. Find AB. How should i approach this? will sss similarity work?

6th Grade Math

Hi, can someone please give me a few examples of how people use functions in the real world and explain them too? Thank You :)

Math

Find the surface area of the cone. Use 3.14 for pi. The radius is 8in and the height is 7in please help asap!! And thank you for your time. Ms.Sue?

Math

Find the surface area of the cone. Use 3.14 for pi. The diameter is 8in and the height is 7in please help asap!! And thank you for your time. Ms.Sue?

math

Can you find two positive numbers whose sum and product are both 5? Round off to nearest hundredth, please.

Algebra/Math

Write an inequality to represent the situation: The temperature stayed above -15*. I've already done this test, but I'm doing corrections. Please help? I'm thinking that the -15* is <=.

math

I know all my answers in my quiz but this one please help Order the rational numbers from least to greatest :0.42, -1/2, 11/20, -0.51 thanks again I'm not good with decimals :P

math

choose an appropriate mertic unit for the mass of a paper clip A.meter b.gram c.kiogram. or d.centimeter hel please!!!!!!

math

Write the slope-intercept (y = mx + b) form of the equation from the information given. The line goes through the points (-1, -7) and (-8, -2) Can someone please help me?

Math

Put these fractions in order from least to greatest.2/5 3/4 and 1/2. I am trying to help my daughter with her homework. Would you please explain to me how the easiest way to do this.

4th grade math

please help!! I have no idea how to do these I am trying to help my son.. Find two mixed numbers so that the sum is 21 1/6 and the difference is 4 3/6?

Math

Explain the attern generated by each of your answers. Find 5 different numbers that could be used to fill in the blank. 7,14,21,28,___ Please help me out if you could :)

Math

Similar polygons are _____ the same size. always sometimes** never I'm having a brain fart. ahh! please help!

math

an astronomer estimated that a canyon on another planet was 2.5x10^3 kilometers long which is equivalent 25,000km 2,500km 0.025km 0.0025km please help

Math

I want to make quilt with an area of 42 sq.feet. what are its possible dimensions if they must be whole numbers? Please show his you got your answer

Math

How do I show that the sum of 3 consecutive odd integers is a multiple of 3? Can you please help me answer this question? My teacher didn't explain on how to solve it very well.

math

let f be the function f(x)=x(x+2) Find and simplify f(x)-f(-x)/2x I tried pluggin in whatever is for x in the first equation and get an answer for each value but it isn't working out can someone please help thank you

Math

Please check my answer~ Find the distance between points C (4,12) and D (-2,5) to th3 nearest tenth. d=sqrt(-2,4)^2+(5-12)^2 d=sqrt36+49 d=sqrt85 d=9.2

Math (just need some help)

Solve the system using an augmented matrix. -x-3y=-17 2x-6y=-26 Can someone please explain what I am supposed to do in this problem?

MATH HELP PLEASE

If Indianapolis to Bloomington is 3cm on a map what is the actual length. These are the answers A.100 B.150 C.200 D.250 I think it is B

2nd grade math

Please help. I'm confused here's an example: 38+45=? Show how to make one added the next tens number?

Math

A coin is tossed and a three-sector spinner is spun. What are the chances of getting 1 Heads and a 2? *Please answer with a simplified fraction*

Math

Which ordered pairs lie on the graph of the exponential function f(x)=128(0.5)^x ? Choose ALL correct answers. A. (0, 1) B. (1, 64) C. (3, 16) D. (8, 0.5) B and C? someone please help

math

find the length of the longest diagonal through a cuboid of sides 4cm by 13cm by 16cm. please show working

Math grade 8

prove that x^6-x^5-x^4-x^3-x^2-x+1>0 is true for any number Please someone explain to me this, I couldn't understand the teacher when they talked about something similar to this and I didn't get it...

Math

Convert $e^{-\pi i}$ to rectangular form. Not sure how to start this problem, should I use Euler's formula? Can anyone help provide the steps please? Thanks

Math

3+1/4*cos(theta)=13/4 Please help really confused. I was given the answer as 1 but how do I figure it out. I know you are suppose to subtract 3 from both sides but how do i do that with the 13/4?

Math

24. solve the system of equations algerbraically. show all of your steps. (2 points) y=x^(2)+2x y=3x+20 I'm just having trouble understanding. Please help

Math

Determine the zeros of each function by factoring: a. f(x)=-2x^2-5x+12 b. f(x)=2x^2-3x-2 c. f(x)=x^2-10x+24 I have been trying to figure these out for awhile and am stuck. Please and Thank you for help.

Math Review HELP

Perform the following addition subtraction problem.s Be careful about operations and parenthesis. (3.5*10^3)(4.2*10^5)+(4.3*10^-4)(2.1*10^-2) A little confused... Please Help,,, thanks

Math PLz Help

I need to find the coordinates of vwxy with a scale factor of two could you please help I have tried every way. V(6,2) W(-2,4) X(-3,-2) Y(3,-5)

math

please can anyone kindly help me to get the answer of this word problem,i would like someone to help me please for the word problem below...... Pat and Eric bought a large pizza that has 12 slices.Jane and Eric ate all the pizza .If Jane ate 4/6 slices, how much did Eric eat? ...

Math

Help help!! Trying to help son with math homework.. Please help Create a table for each set of values. Test each table for equivalent ratios to find which set of values describes the proportional relationship of the two quantities. 66 ounces of peanuts to 89.1 ounces of ...

math

As a a test of a new measurement process, 10 measurements are made on pieces of glass known to have conductivity 1. The average of the 10 measurements is 1.07. Indicate whether 1 and 1.07 is a parameter or statistic and explain why. I know 1.07 is a statistic. Please explain ...

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