Mathematics

What is the simplified form of 18a^2b^5 / 6a^8b

thank you!-3b^4/a^6-This can be written as (18/6)(a^2/a^8)(b^5/b) => 3a^-6b^4 or 3b^4/a^6 :)>

What is the distance between...

What is the distance between (-3,5) and (4,-1)? How do I work this problem? Is there a formula? Thanks!-Use the distance formula: D=√[(x₂-x₁)² + (y₂-y₁)²] And in this case the points are (-3,5) & (4

Is 9a^2 − 30a + 25 a perfect square trinomial? If so, what are the factors

(3a - 5)^2-(3a-5)^2

Pre Algebra help? Easy 10 pts for you math gurus!

Please dont tell me to do my own work, these are the only questions I have gotten stuck on. This is yahoo answers, not yahoo lectures. Thanks in advance to you awesome people who answer! 1. http://i

Find the midpoint of the line...

Find the midpoint of the line segment joining (-5,1) and (-1,6) How is this done? Is there a formula to use? Thanks!-Use the midpoint formula (x₁ + x₂ / 2 , y₁ + y₂ / 2) Or in this case [(-5+(-1))/2

GCSE question edexcel

a =6a - n_____3 + n Rearrange the formula to make n the subject? I got n= -1.5a Dont think its right, thanks for the help.. :D-assuming the formula is a=(6a-n)/(3+n) a(3+n)=6a-n 3a + an = 6a-n an+n =

HELP. What is the value of y in the solution to the following system of equations? MULTIPLE CHOICE.

2x + y = −4 5x + 3y = −6 A. 6 B. 8 C. −6 D. −8-2x + y = -4 5x + 3y = -6 What you must do is find one of the variables. Since its easier to find y, lets solve for y in the first equation: 2x + y =

Need help with Algebra 2. Please answer.

Write the expression as a complex number in standard form. 1.(5 + 2i) + (6 - 5i) 2. -3i (7 + i) 3. 1 + 2i / 3 - 8i 4. (3 - 2i) + 2i / (-1 + 7i) - (2 + 3i)-1. (5 + 2i) + (6 - 5i)= 5+2i+6-5i = 11 -

HELP. What are the x-intercept(s) of the graph of y + 8x = x^2 − 20

make all the xs on one side y = x^2 - 8x - 20 now plug in 0 for y x^2 - 8x - 20 = 0 solve for x factor, and you get (x - 10)(x+2) x = 10, -2 the x intercepts are (10, 0) and (-2, 0)-set y =

Find the Equation for this problem please

Find the Equation of the line that has a y intercept of -4 and is parallel to the line with equation y= 9x + 11-y=9x-4-parallel lines will have the same slope slope formula is y=mx+bm is the slope, b

Need help fast please? 10 pts

http://img825.imageshack.us/img825/9849/110609175515.png http://img707.imageshack.us/img707/9366/110609175537.png Thank you whomever answers, appreciate it.-2.)PQ ≈ QR 3.) square because it does

Help with quick math prob please - 10 points

There is a right triangle whose other two angles are 60 degrees and 30 degrees. The hypotenuse length is 12 inches. What are the lengths of the legs? Im pretty sure you use trig here, and if so, this

What is the 20th term...

What is the 20th term of the sequence: -5, -15, -45, -135,...? Thanks for your help!-The sequence is geometric with common ration of r=3 a_n = (a_1)r^(n-1) Or in this case a_20 = (-5)3^19 a_20 = -

Algebra homework help

5. A rectangular picture is 4 cm longer than it is wide.It is surrounded by a mat that is 2 cm wide.The combined area of the picture and the mat is 140 cm2.Find the dimensions of the picture. 8. What

Help with two questions please? show your work!

Simplify. What are the excluded values of the original denominator? 1. (3 + 1/y) / (4 + 2/y) 2. [(5/x) - (3/x + 3)] / [(2/x^2 + 3) + (4/x)] It looks hard, I know. I tried to show the work for the