Hi there!
13 miles is equal to 20.921472 Kilometers.
Hope this helps!
~Alexa
Sorry But I can't understand what − means so i will solve this for x+3 and x-3
first for x+3
equation e= x(x+3)(x+4)>0
so points are x= 0,-3,-4
for range x<-4
e<0
for -4<x<-3
e>0
for -3<x<0
e<0
and for x>0
e>0
so the interval when e>0
x â (-4<x<-3 and x>0)
now for x-3
equation e=x(x-3)(x+4)>0
so points are x= 0,3,-4
for range x<-4
e<0
for -4<x<0
e>0
for 0<x<3
e<0
and for x>3
e>0
so the interval when e>0
x â (-4<x<0 and x>3)
If the sides are in the ratio of 11:16:24, it means that they are all multiples of a same number x, according to these factors.
So, the shorter side is 11x feet long, the middle one is 16x feet long, and the longest side is 24x feet long.
This means that the perimeter is
feet long. But we know that this is 510 feet, so we have
.
So, the three sides are 110, 160 and 240 feet long.
To find the area of a triangle knowing its three sides, you can use Heron's formula, which states that, if 
is half the perimeter of the triangle whose sides are 
, the area 
is given by
In our case, 
so the formula becomes
Answer:
1/3x=y-3, y=2/3x
Step-by-step explanation:
1/3x=y-3 is a linear function because there are no powers.
y=x^3+2 is not a linear function because x is squared by 3.
y=6x^2 is not a linear function because x is squared by 2.
y=2/3x is a linear function because there are no powers.
If this helps please mark as brainliest
