Friday

October 24, 2014

October 24, 2014

Total # Posts: 201

**Math**

For a seesaw to balance, weight X distance on one side of the seesaw has to equal weight X distance on the other side. x = distance of adult 14 - x = distance of child 204x = 81.6(14 - x) Simplify the equation and solve for x.
*April 24, 2013*

**Math**

l = length of original rectangle w = width of original rectangle 2l = length of new rectangle 3w = width of new rectangle Area of first rectangle is lw Area of second rectangle is (2l)(3w) = 6 lw Second rectangle has an area 6 times the first one.
*April 24, 2013*

**m**

The sum of all possible distinct values is 13. 2 and 11 are only choices.
*April 24, 2013*

**Grammer root**

pencil backpack
*April 24, 2013*

**math**

8/12 or 2/3
*April 24, 2013*

**math**

A diagram of this problem is a right isosles triangle. The right angle is where the tree touches the ground and the two 45 degree angles are where the kite hits the top of the tree and where the ladder hits the ground. The legs of an isosles triangle are equal. The tree is one...
*April 23, 2013*

**Midpoint Help / Math**

Midpoint formula: M = [ (x1 + x2)/2 , (y1 + y2)/2] (-4,2) = [ (-2 + x)/2 , (5, + y)/2 ] -4 = (-2 + x)/2 and 2 = (5 + y)/2 -8 = -2 + x. and 4 = 5 + y -6 = x. and -1 = y Coordinates of R (-6, -1)
*April 23, 2013*

**algebra**

the opposite of x is -x x + (-x) = 0 1/x is the reciprocal of x
*April 23, 2013*

**math**

(2x - 5y)^2 (2x - 5y)(2x -5y) (2x)(2x) + (2x)(-5y) + (-5y)(2x) + (-5y)(-5y) 4x^2 + (-10xy) + (-10xy) + 25y^2 4x^2 - 20xy + 25y^2
*April 23, 2013*

**books**

I would just google "Strange Objects" by Gary Crew.
*April 23, 2013*

**maths**

Can you ask your questions a different way? Put spaces between terns unless they are being multiplied.
*April 23, 2013*

**Math Geo**

C = pi * d 272.2 = pi * d 272.2/pi = d use 3.14 for pi
*April 23, 2013*

**Math**

l = length w = width = 2l - 18 P = 2l + 2w 36 = 2l + 2(2l - 18) Can you solve from here?
*April 23, 2013*

**Math**

Use a calculator.
*April 23, 2013*

**Math**

If Lucy is at (1,11), and you count to the right on a line that is parallel to the x-axis, you will end up at (11,11). Sketch the x and y axes and plot the points.
*April 23, 2013*

**Math**

Yes.
*April 23, 2013*

**math**

Yes. Sorry it took so long to reply.
*April 23, 2013*

**math**

a. Substitute (x + 2) from the second eq., simplify and solve for x. Then solve for y. The other two equations are done the same way. a. x+2 = x^2 x^2 - x - 2 = 0 (x - 2)(x + 1) = 0 can you finish it?
*April 23, 2013*

**6th grade Math**

WOW! This looks like algebra, not 6th grade.
*April 23, 2013*

**algebra 1,urgent**

In your first question, do you know how to simplify an expression - that is remove parentheses? Question #2 parallel lones have the same slope I don't understand question #3 Question #4 perpendicular lines have slopes that are negative reciprocal s of each other.
*April 23, 2013*

**geometry**

Try it and see what happens.
*April 23, 2013*

**Algebra**

I've had that problem myself. : )
*April 23, 2013*

**Algebra**

Please do not ask the same question 3 times. Once is enough.
*April 23, 2013*

**Algebra**

You are welcome.
*April 23, 2013*

**Algebra**

Area of circular mirror = pi(5x)^2 Area of square =(15x)^2 Area of metal frame = (15x)^2 - pi(5x)^2
*April 23, 2013*

**algebra1**

let x = larger number x -8 = other number x /(x - 8) = 15/11 cross multiply 15(x - 8) = 11x simplify and solve for x check your answer
*April 23, 2013*

**Geo math**

Yes. 3.14 * 5^2 = area of circular bed area of circular bed/5 = number of flowers
*April 23, 2013*

**Geo math**

No. The radius is half the diameter. Then divide by 5 sq. ft.
*April 23, 2013*

**Geo math**

Find area of bed. A = pi * r^2
*April 23, 2013*

**percent decrease**

Yes.
*April 22, 2013*

**MATH.**

If you follow the steps that I showed you for problem, you will see that -1 is the answer.
*April 22, 2013*

**MATH.**

x + 0.054 = -1.08 subtract 0.054 from both sides of the equation.
*April 22, 2013*

**MATH.**

7 = 2 - 5m 7 - 2 = 2 - 5m - 2 5 = -5m 5/(-5) = (-5m)/(-5) -1 = m
*April 22, 2013*

**math**

Do you mean a three digit number whose digits' product is 16848?
*April 22, 2013*

**Algebra 1**

I'll check your answers.
*April 22, 2013*

**Math**

How many total choices are there on the 5 true false questions? How many choices are there on the five multiple choice questions? Difference indicates subtraction,
*April 22, 2013*

**Algebra 1**

I will be happy to check your answers.
*April 22, 2013*

**geometry**

To my recollection, this shape does not have a name.
*April 22, 2013*

**geometry**

I'm trying to visually recall the sizes of pattern blocks......... depending on which sides the two blocks share, one could get a larger triangle or a parallelogram
*April 22, 2013*

**math**

Could be 1000.
*April 22, 2013*

**geometry**

two equilateral triangles would make a rhombus I don't remember all the shapes of pattern blocks.
*April 22, 2013*

**math**

Find the volume of one of the 43 cubes with 0.5 unitd on a side. Multiply the volume of one cube by 43. This is the volume of the prism.
*April 22, 2013*

**college**

Ooooops! x^2 + (x + 6)^2 = 27^2 Don't know where I got x+ 2. Sorry.
*April 21, 2013*

**college**

let x = distance from pole to spot on ground where guy wire is attached x + 6 = height of pole x^2 + ( x+ 2 )^2 = 27^2 simplify and solve for x
*April 21, 2013*

**5th grade math (word problems)**

You're welcome.
*April 21, 2013*

**5th grade math (word problems)**

That looks right.
*April 21, 2013*

**science**

exact orbital pattern of astroids is not exactly known
*April 21, 2013*

**science**

Elliptical
*April 21, 2013*

**math**

First, multiply both equations by 6 to remove the fractions. Then, subtract one equation from the other. Solve for the variable. Substitute and solve for the other variable.
*April 21, 2013*

**Math**

Courtney - 2 cookies Daniel - 2 times Courtney = 4 cookies Ethan - 4 times Daniel = 16 cookies
*April 21, 2013*

**Geometery**

I don't understand a slanted top. Are there any perpendicular lines in the figure? Any angle measures given?
*April 21, 2013*

**Geometery**

Where did the 5 come from? Is the long side one of the parallel sides?
*April 21, 2013*

**Geometery**

Good job.
*April 21, 2013*

**Geometery**

If no height is given for the triangle, you cannot find the area. Does the triangle share a side with the rectangle? Could it be that the height of the triangle is one of the sides of the rectangle? Your area for the rectangle is correct.
*April 21, 2013*

**Geometery**

Can't tell if ans. is right if I don't know the question.
*April 21, 2013*

**Geometery**

what question is being asked
*April 21, 2013*

**math**

(x- 2)(2x + 1) = 0 x- 2 = o or 2x + 1 = 0 solve each equation for x
*April 21, 2013*

**MATH HELP!!!!!!!!!!1**

8:12 = 7:72 (one hour = 60 min.) now, you can subtract 41 min What is your second question?
*April 20, 2013*

**algerba 1**

problem 1. let x = first number 8x = second number x - 3 = third number x + (8x) + (x-3) = 207 simply the equation and solve for x problem 2 is done the same way as the first one
*April 20, 2013*

**math help please**

Is your third equation supposed to be y = 3x^2 +1
*April 20, 2013*

**math help please**

That is not the answer. There is no exponent in that equation.
*April 20, 2013*

**math help please**

Any equation with an exponent is non-linear
*April 20, 2013*

**math**

x = smaller number 2x - 5 = larger number x + (2x - 5) = 43
*April 20, 2013*

**math**

x = first number 7x = second number x + 7x = 72 simplify and solve equation
*April 20, 2013*

**math**

ooops, I misread question. Sorry
*April 20, 2013*

**math**

d = number of dimes 3d = number of nickels d + 3d = 1.50 simplify and solve the equation for d and 3d
*April 20, 2013*

**math**

This problem involves a right isosles triangle. Legs of an isosles triangle have the same measure.
*April 19, 2013*

**math**

Use volume for cylinder : V = pi * r^2 * h Find the volume of the 15cm tube Find the volume of the 13cm tube Subtract Use 3.14 or 22/7 for pi
*April 19, 2013*

**Algebra**

y^3(0.2 + 0.3 + 0.1) Just add the decimals and multiply by y^3
*April 19, 2013*

**Math**

Find the perimeter of the garden. P = 2 w + 2l
*April 18, 2013*

**MATH**

s = short leg l = long leg l - s = 7; l = 7 + s h = s + 9 s^2 + l^2 = h^2 s^2 + (7 + s)^2 = (s + 9)^2 simplify
*April 17, 2013*

**math**

See answer to your previous question. Work this one in a similar way.
*April 17, 2013*

**math**

Add 28 to both sides of the inequality.
*April 17, 2013*

**Math**

All of these questions have to do with the circumference of a circle. C = pi * d or C = pi * r^2 You can use either 3.14 or 22/7 for pi.
*April 17, 2013*

**algebra 1**

(x - 2)(x + 8) b is less than c (x - 5)(2x + 1) b is greater than c
*April 17, 2013*

**algebra 1**

3) sometimes 4) what techniques were presented? 5) correct
*April 17, 2013*

**algebra 1**

Please go back and see my last comment on your first questions. I got distracted and gave you some incorrect info. Sorry.
*April 17, 2013*

**math**

Forget that. That's for area. 1 and 5 2 and 4 3 and 3
*April 17, 2013*

**math**

1 and 6 2 and 3
*April 17, 2013*

**Kos**

Multiply numerator and denominator by -5 + 3 sqr root (3)
*April 17, 2013*

**Math**

Multiply the first equation by 2. Add that equation to the second equation. Solve this new equation for x. Now substitute your value for x into either one of the original equations and solve for y.
*April 17, 2013*

**algebra 1 help**

Yes. -18 and + 18
*April 17, 2013*

**algebra 1 help**

Oh! Dear. I am so sorry. You were correct on the first question. I got distracted. So sorry.
*April 17, 2013*

**algebra 1 help**

Yes. List the numbers in order least to greatest.
*April 17, 2013*

**algebra 1 help**

Great! Keep up the good work.
*April 17, 2013*

**algebra 1 help**

Ok. Also -1 and - 19. The answer then is: -19, -1, 1, 19 Second question List all pairs of numbers that multiply to get -8.
*April 17, 2013*

**algebra 1 help**

What are the factors of 19? Your answer to the first question is not correct I'll talk about the second question after you get the first one correct.
*April 17, 2013*

**algebra 1 help**

In question 2, you are looking for all pairs of numbers greater than zero whose product is 8.
*April 17, 2013*

**algebra 1 help**

The first thing to notice in the first question is that 19 is a prime number. If you can list ALL factors of -19, then you have all values of k using integers.
*April 17, 2013*

**Math**

g = number of girls g - w = boys = 18 g - w = 18 g = 18 + w boys + girls = total students 18 + (18 + w) = total students you finish it
*April 17, 2013*

**algebra**

You factored the expression 2x^2 - 7x - 15 and got (x - 4)(x + 2) If you multiply those together, you do not get the original expression. Your answer is not correct. the factors that have 3 and 5 in them are the correct answer.
*April 17, 2013*

**algebra**

(2x + 3)(x - 5)
*April 17, 2013*

**algebra**

your answer to 2x^2 -7x - 15 is not correct because if you multiply your factors, you get x^2 - 2x - 8
*April 17, 2013*

**algebra**

Your answer to the first one is correct.
*April 17, 2013*

**algebra**

x^2 - 3x - 10 (x - 5)(x + 2)
*April 17, 2013*

**algebra**

(2c + 1)(3c + 5) 2c * 3c + 2c * 5 + 1 * 3c + 1 * 5 can you finish this?
*April 17, 2013*

**algebra**

What is your question?
*April 17, 2013*

**ocho rios primary school**

Yes.
*April 17, 2013*

**ocho rios primary school**

men
*April 17, 2013*

**math**

Use this as a guide (a + b)^2 a^2 + 2ab + b^2
*April 17, 2013*