What we have here is a problem of proportions. We're assuming that the probabilities - the ratio of rainy days to total days - are equal; 3 is to 20 as <em>something</em> (let's call it <em>r </em>for "rainy days") is to 365. Mathematically, that gives us this equality:
To solve for <em>r</em>, we can simply multiply either side of the equation by 365:
365 and 20 have the factor 5 in common, so we can use that to reduce the fraction to:
So, the number of rainy days, if that pattern continued, would be around 54 3/4 days, or
55, rounded up to the nearest day.
Answer:
72.2566311
Step-by-step explanation:
Circumference = 2πr
We don't have the radius, but we do know that half of the diameter is the radius, so 23/2 = 11.5. r = 11.5
Now, plug the radius into the equation:
2π(11.5)
Solve:
2π(11.5) = 72.2566311
I: 12x-5y=0
II:(x+12)^2+(y-5)^2=169
with I:
12x=5y
x=(5/12)y
-> substitute x in II:
((5/12)y+12)^2+(y-5)^2=169
(25/144)y^2+10y+144+y^2-10y+25=169
(25/144)y^2+y^2+10y-10y+144+25=169
(25/144)y^2+y^2+144+25=169
(25/144)y^2+y^2+169=169
(25/144)y^2+y^2=0
y^2=0
y=0
insert into I:
12x=0
x=0
-> only intersection is at (0,0) = option B
Answer:
D???
Step-by-step explanation:
D????
stand·ard de·vi·a·tion
/ˈstandərd ˌdēvēˈāSHən/
nounSTATISTICS
a quantity calculated to indicate the extent of deviation for a group as a whole.
Answer:
Step-by-step explanation:
Division:
Single Out Variable: