Thursday

July 31, 2014

July 31, 2014

Total # Posts: 205

**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.

**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.

**m**

The sum of all possible distinct values is 13. 2 and 11 are only choices.

**Grammer root**

pencil backpack

**math**

8/12 or 2/3

**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...

**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)

**algebra**

the opposite of x is -x x + (-x) = 0 1/x is the reciprocal of x

**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

**books**

I would just google "Strange Objects" by Gary Crew.

**maths**

Can you ask your questions a different way? Put spaces between terns unless they are being multiplied.

**Math Geo**

C = pi * d 272.2 = pi * d 272.2/pi = d use 3.14 for pi

**Math**

l = length w = width = 2l - 18 P = 2l + 2w 36 = 2l + 2(2l - 18) Can you solve from here?

**Math**

Use a calculator.

**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.

**Math**

Yes.

**math**

Yes. Sorry it took so long to reply.

**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?

**6th grade Math**

WOW! This looks like algebra, not 6th grade.

**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.

**geometry**

Try it and see what happens.

**Algebra**

I've had that problem myself. : )

**Algebra**

Please do not ask the same question 3 times. Once is enough.

**Algebra**

You are welcome.

**Algebra**

Area of circular mirror = pi(5x)^2 Area of square =(15x)^2 Area of metal frame = (15x)^2 - pi(5x)^2

**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

**Geo math**

Yes. 3.14 * 5^2 = area of circular bed area of circular bed/5 = number of flowers

**Geo math**

No. The radius is half the diameter. Then divide by 5 sq. ft.

**Geo math**

Find area of bed. A = pi * r^2

**percent decrease**

Yes.

**MATH.**

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

**MATH.**

x + 0.054 = -1.08 subtract 0.054 from both sides of the equation.

**MATH.**

7 = 2 - 5m 7 - 2 = 2 - 5m - 2 5 = -5m 5/(-5) = (-5m)/(-5) -1 = m

**math**

Do you mean a three digit number whose digits' product is 16848?

**Algebra 1**

I'll check your answers.

**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,

**Algebra 1**

I will be happy to check your answers.

**geometry**

To my recollection, this shape does not have a name.

**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

**math**

Could be 1000.

**geometry**

two equilateral triangles would make a rhombus I don't remember all the shapes of pattern blocks.

**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.

**college**

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

**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

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

You're welcome.

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

That looks right.

**science**

exact orbital pattern of astroids is not exactly known

**science**

Elliptical

**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.

**Math**

Courtney - 2 cookies Daniel - 2 times Courtney = 4 cookies Ethan - 4 times Daniel = 16 cookies

**Geometery**

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

**Geometery**

Where did the 5 come from? Is the long side one of the parallel sides?

**Geometery**

Good job.

**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.

**Geometery**

Can't tell if ans. is right if I don't know the question.

**Geometery**

what question is being asked

**math**

(x- 2)(2x + 1) = 0 x- 2 = o or 2x + 1 = 0 solve each equation for x

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

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

**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

**math help please**

Is your third equation supposed to be y = 3x^2 +1

**math help please**

That is not the answer. There is no exponent in that equation.

**math help please**

Any equation with an exponent is non-linear

**math**

x = smaller number 2x - 5 = larger number x + (2x - 5) = 43

**math**

x = first number 7x = second number x + 7x = 72 simplify and solve equation

**math**

ooops, I misread question. Sorry

**math**

d = number of dimes 3d = number of nickels d + 3d = 1.50 simplify and solve the equation for d and 3d

**math**

This problem involves a right isosles triangle. Legs of an isosles triangle have the same measure.

**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

**Algebra**

y^3(0.2 + 0.3 + 0.1) Just add the decimals and multiply by y^3

**Math**

Find the perimeter of the garden. P = 2 w + 2l

**Math**

Find the perimeter of the garden. P = 2 w + 2l

**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

**math**

See answer to your previous question. Work this one in a similar way.

**math**

Add 28 to both sides of the inequality.

**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.

**algebra 1**

(x - 2)(x + 8) b is less than c (x - 5)(2x + 1) b is greater than c

**algebra 1**

3) sometimes 4) what techniques were presented? 5) correct

**algebra 1**

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

**math**

Forget that. That's for area. 1 and 5 2 and 4 3 and 3

**math**

1 and 6 2 and 3

**Kos**

Multiply numerator and denominator by -5 + 3 sqr root (3)

**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.

**algebra 1 help**

Yes. -18 and + 18

**algebra 1 help**

Oh! Dear. I am so sorry. You were correct on the first question. I got distracted. So sorry.

**algebra 1 help**

Yes. List the numbers in order least to greatest.

**algebra 1 help**

Great! Keep up the good work.

**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.

**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.

**algebra 1 help**

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

**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.

**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

**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.

**algebra**

(2x + 3)(x - 5)

**algebra**

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

**algebra**

Your answer to the first one is correct.

**algebra**

x^2 - 3x - 10 (x - 5)(x + 2)

**algebra**

(2c + 1)(3c + 5) 2c * 3c + 2c * 5 + 1 * 3c + 1 * 5 can you finish this?

**algebra**

What is your question?