Answer:
(x−2)^3=x^3−6x^2+12x-8
Step-by-step explanation:
if you are talking about the binomial (x−2)^3 you must expand then simplify. (x-2)3 you would just remove the parenthesizes and multiply -2 with 3 to get x-6 but I think you meant (x-2)^3
All you need to do is divide 96 by 8 and you get 12 as your answer
Answer:
The constant of proportionality is 6 because 6x2=12 6x4=24 6x6=36 and it keep going
Step-by-step explanation:
The formula for volume of a sphere is V=(4pi*r^3)/3.
Plugging in 12 for r we get
V=(4pi*(12)^3)/3
V=(4pi*1728)/3
V=(6912pi)/3
V=2304pi
Round to 2 decimal places: 7238.23
Final Answer:
7238.23 cubic units.
Hope I helped :)
First off, let's convert the percentages to decimal format, so our 77% turns to 77/100 or 0.77, and our 55% turns to 55/100 or 0.55 and so on
now, the sum of both salines, must add up to the 77% mixture, let's say is "y"
so, 11 + 4 = y, and whatever the concentration level is, must also sum up to the mixture's concentration of 77%
anyway thus
![\bf \begin{array}{lccclll} &amount&concentration& \begin{array}{llll} concentrated\\ amount \end{array}\\ &-----&-------&-------\\ \textit{first sol'n}&11&x&11x\\ \textit{second sol'n}&4&0.55&2.20\\ ------&-----&-------&-------\\ mixture&y&0.77&0.77y \end{array}\\\\ -------------------------------\\\\ \begin{cases} 11+4=y\implies 15=\boxed{y}\\ 11x+2.2=0.77y\\ ----------\\ 11x+2.2=0.77\cdot \boxed{15} \end{cases}](https://tex.z-dn.net/?f=%5Cbf%20%5Cbegin%7Barray%7D%7Blccclll%7D%0A%26amount%26concentration%26%0A%5Cbegin%7Barray%7D%7Bllll%7D%0Aconcentrated%5C%5C%0Aamount%0A%5Cend%7Barray%7D%5C%5C%0A%26-----%26-------%26-------%5C%5C%0A%5Ctextit%7Bfirst%20sol%27n%7D%2611%26x%2611x%5C%5C%0A%5Ctextit%7Bsecond%20sol%27n%7D%264%260.55%262.20%5C%5C%0A------%26-----%26-------%26-------%5C%5C%0Amixture%26y%260.77%260.77y%0A%5Cend%7Barray%7D%5C%5C%5C%5C%0A-------------------------------%5C%5C%5C%5C%0A%5Cbegin%7Bcases%7D%0A11%2B4%3Dy%5Cimplies%2015%3D%5Cboxed%7By%7D%5C%5C%0A11x%2B2.2%3D0.77y%5C%5C%0A----------%5C%5C%0A11x%2B2.2%3D0.77%5Ccdot%20%5Cboxed%7B15%7D%0A%5Cend%7Bcases%7D)
solve for "x"