Answer:
-1/8
Step-by-step explanation:
Perpendicular slopes are negative reciprocals
The slope of y=8x+5 is 8, because it is in slope intercept form: y=mx+b form, where m is the slope.
Negative:
8/1--> -8/1
Reciprocal:
Flip the numerator and denominator
-8/1--> -1/8
So, the perpendicular slope of 8 is -1/8
Answer:
5/6
Step-by-step explanation:
A dice has 6 faces.
The probability that the dice would land on 4 after one roll is 1/6.
The probability that the dice would NOT land on 4 after one roll is
1 - 1/6
= 5/6
So the problem is

and you need to find x.
You can find x by taking fourth root of 256. The easiest way is to use your calculator. On my scientific calculator, it is 2nd then the button ^ that is
![\sqrt[x]{}](https://tex.z-dn.net/?f=%20%5Csqrt%5Bx%5D%7B%7D%20)
You get the answer of 4.
You can search in google if you want for the "inscribed quadrilateral conjecture"
and if you want... I can give you a quick proof of it
hmmm in short, if you inscribe a quadrilateral polygon in a circle
it will have 4 angles
each pair of opposite angles, are "supplementary angles", or they add up to 180°
so.. that said in yours, R+P = 180 and Q+O = 180 as well
you only need Q
so

solve for "x"
how big is Q? well, 2x + 4 :)
3.071 X10^12. if you move the decimal place to the right 12 times it will end up behind the 3.