Question

11sqrt{20} + 4sqrt{45}

Answer 1

\[11\sqrt{20}+4\sqrt{45}\]

Answer 2

explain steps please

Answer 3

ok so you have the problem \[11\sqrt{20}+4\sqrt{45}\]
you break down the sqrts like so
\[22\sqrt{5}+12\sqrt{5}\]
then add them into one sqrt like so
\[34\sqrt{5}\]
which is equal about 76.02

check work \[11\sqrt{20}+4\sqrt{45}=76.02\] and \[34\sqrt{5}=76.02\]

Answer 4

so i have to square each number?

Answer 5

do you under stand how i broke each one down?

Answer 6

then I add. ok this where i got lost on the decimal stuff. is that like the three decimal places thing? I understood all up to the decimal thing

Answer 7

the 76.02?

Answer 8

yes how did you get that? i rem doing some work with the square roots that said simplify to three decimal places

Answer 9

yea like what is the value to 3 decimal places. it said i could use a calculator but i couldnt get it on the calculator

Answer 10

ok so all i did was simply it on paper then used a calculator to find out the 76.02 its accually like 76.02631123

Answer 11

so 76.026

Answer 12

what do i push in on the calculator to find that i did the sqrt symbol then number but it doesnt do anything

Answer 13

uhhh what calculator do you have?

Answer 14

fx-300es

Answer 15

casio

Answer 16

it should just jsut be like 35*sqrt(5) or (11*sqrt(20))+(4*sqrt(45))

Answer 17

sorry if i cant help more than that i use a ti-84 plus so im not 100% sure what buttons are where on yours

Answer 18

yea its hard to tell when there are different calculators. thanks though

Answer 19

sorry wish i could be more help

Answer 20

oh no your helping just fine. id rather have it explained to me than just give me the answers

Answer 21

do you need me to explain something else?

Answer 22

im working on one right now its \[\sqrt[4]x \times \sqrt[5]7x{}\]

Answer 23

do i add 4 and 5

Answer 24

hmmm.....give me a min to think

Answer 25

http://www.brightstorm.com/math/algebra-2/roots-and-radicals/multiplying-radicals-of-different-roots/
watch this video it explains how to do that better than i can

Answer 26

hope that helps some

Answer 27

\[\sqrt[20]7x{?}\]

Answer 28

it helps, but when its not in the same form as my problem i dont knwo how to do it.