Answer: 10
Step-by-step explanation:
Formula : √(xB−xA)2+(yB-yA)2
= √(−8)2+62
= √64+36
= √100 = 10
Answer:

Step-by-step explanation:
To evaluate substitute x =
into f(x)
f(
) = -
×
+ 5
= -
+
= 
Answer:
Step-by-step explanation: x+4-5=y
Alright, lets get started.
Suppose the original square window has the side = x feet
The new window is 3 ft wider and 2 ft higher than the square one.
Means length of the new window will be = 
Width of the new window will be = 
So the area of the new window will be = 
So the area of the new window will be = 
So the area of the new window will be = 
As given in question the area of 30 square feet for the new window, hence


Factoring

x = -8 or x = 3
Side could not be negative hence
side of the original square window will be = 3 feet : Answer
Hope it will help :)
Answer:
The exact answer is sqrt(170)
The approximate answer is roughly 13.0384
=======================================
Explanation:
We have a right triangle with two known sides. Use the pythagorean theorem to find the third side
Known sides:
a = 7
b = 11
Unknown side is c which is the hypotenuse (longest side)
a^2 + b^2 = c^2
7^2 + 11^2 = c^2
49 + 121 = c^2
170 = c^2
c^2 = 170
c = sqrt(170)
c = 13.0384
Note: the last value is approximate