This is what I get
First is to get them to perfect squares . R27 = r9^3
S30= s10^3
=(a-b)(a^2+ab+b^2)
Where a=r9 and b=s10 (R9-s10)((r9)^2+r9+s10+(s10)^2) Now simplify To get
(R9-s10)(r18-r9+s10+s20)
X^2 = 300^2 + 175^2 - 2 (300)(175) cos 150
x^2 = 90000 + 30625 + 90932
x^2 = 211557
x = 459.95 miles
Answer:
hey i know this might not help the way you want it to but try using khan Academy these videos might be helpful
Step-by-step explanation:
Write a proportion and solve for x ....
12 / x = 4 / 117
Cross multiply ...
12 * 117 = 1404
x * 4 = 4 x
4 x = 1404
x = 351
