Answer:
Step-by-step explanation:
It is already in its simplest form. When you simplify a square root, you break the number down into prime numbers.
For example, 
can be changed into 
. Since 2 is in there twice, you'd take it out and make 
.
13 is already a prime number, so you cannot simplify it further.
It seems appropriate to use the linear regression function of your calculator for this. Looking at the data, you know the slope is generally positive, so only the 1st and 3rd choices are potentially viable.
A calculator shows the correlation coefficient (r) rounds to 0.816, so the appropriate selection is ...
A. 0.816
The percent of increase is 25 percent
Our equation for the area of a rectangle is l x w = A (length times width equals area)
We know that l=w+20 so we can plug this into our equation.
It is now, (w+20) x w =800
We can then solve for w
w^2 +20w =800
We can subtract 800 on each side to get
w^2 +20w - 800 =0
We then factor to get
(w-20)(w+40)=0
This gives us w =20 and w = -40
Width cannot be negative so our width will be 20 feet
Since our length is 20 more than this, then our length will be 40feet
So the dimensions of the rectangle are 20 ft wide by 40 ft long
Answer:
it toke hoh 3 minutes to trave
Step-by-step explanation:
since the given is 48 cm (distance) and 16cm per minute ( speed )
the equation for that is distance over speed
so ... 48÷16 is equal to 3
so it took bob the snail 3 minutes to travel 48 cm
