Question

A 10-foot ladder leans against a wall with its foot braced 3 feet from wall's base. How far up the wall does the ladder reach? Pls help..:(

Answer 1

use Pythagoras's theorem (10)^2=(3)^2+(h)^2
100-9=h^2
h=9.54

Answer 2

Thank you so much for ur help math is not my thing I truly appreciated:)

Answer 3

np :)

Answer 4

U think u could help me on my other questions if its ok with u..

Answer 5

ok

Answer 6

Multiply or divide. 3n^2-n/n^2-1divided by n^2/n+1

Answer 7

(3n^2-n/n^2-1)/(n^2/n+1)
(3n^2-n/n^2-1)x(n+1/n^2)
(n(3n-1)/(n+1)(n-1))x(n+1/n^2)
n gets cancelled with n^2
n+1 gets cancelled with n+1 remaining n is multiplied with the denominator
(3n-1)/(n(n-1))

Answer 8

is it ok?

Answer 9

Yea it's good what abt this one? Find the value of each expression.9p3 and the other one is 10c4 thnx...

Answer 10

9P3 = Permutations any three from 9
= 9! / (9 -3)!
= 9! / 6!
= 9 * 8 * 7
= 504

10C4 = Combinations any 4 from 10
= 10! / 4! (10 - 4)!
= 10! / 4!6!
= (10*9*8*7) / (4*3*2*1)
= 5040 / 24
= 210
don't forget to use the best response button :)

Answer 11

There are 15 members of the show choir. In how many ways can you arrange 4 members in the front row?

Answer 12

What is the response button?

Answer 13

15P4
=32760

Answer 14

Can u show how u get the answer pls thnx

Answer 15

15!/(15-4)!
15!/11!
(11!x12x13x14x15)/11!
11 factorial cancels out
12x13x14x15=32760

Answer 16

Multiply or divide.5x+10/x+2•2x/4x-10

Answer 17

I just have 3 more problem if u can help me I would truly appreciate ur help thank you for all the help...

Answer 18

Are you also attempting them yourself? :)

Answer 19

10x^2+20x/(4x^2-10x+8x-20)
10x^2+20x/(4x^2-2x-20)
5x^2+10x/(2x^2-x-10)

Answer 20

Do I have to cancel anything to get the final answer?

Answer 21

no only take 2 common from numerator and denominator which then cancel out

Answer 22

Simplify each radical expression. Sqrt 75+Sqrt 3...next one is Sqrt 7(Sqrt 14+Sqrt 3).

Answer 23

not this time post your solutions and I will correct them

Answer 24

can u do it or not??

Answer 25

No not really can u show me how to do it pls

Answer 26

sqrt(75)+sqrt(3)
=sqrt(25x3)+sqrt(3)
5sqrt(3)+sqrt(3)
6sqrt(3)
get it?

Answer 27

sqrt(7)(sqrt(7x2)+sqrt(3))
7sqrt(2)+sqrt(3)

Answer 28

Thnx very much...

Answer 29

:)

Answer 30

oh sorry I missed something the answer is 7sqrt(3)+sqrt(7x3)
=7sqrt(3)+sqrt(21)

Answer 31

Thank you so much again for help I wish some times I'm good in math like u guys out there...