Answer:
The coordinates of the midpoint of EF is equal to

Step-by-step explanation:
we know that
The formula to calculate the midpoint between two points is equal to

In this problem we have


Substitute the values in the formula

Hey,
To find the value of
"y", use the inverse operation of multiplication, which is division. Divide both signs of the equal sign by 16 to isolate the variable, and get it by itself.

y = 10.25
Cheers,
Izzy
S=k and a=4s-2, replacing s with k in a gives you:
a=4k-2
The coefficient of x^2 is positive so it will have a minimum value
Its B
Given:
The base of the given triangle has two part:
Left( left side of the hypotenuse) = 25
Right ( right side of the hypotenuse) = x
The altitude (h) = 60
To find the value of x.
Formula:
By Altitude rule we know that, the altitude of a triangle is mean proportional between the right and left part of the hypotenuse,

Now,
Putting,
left = 25, altitude = 60 and right = x we get,

or,
[ by cross multiplication]
or, 
or, 
Hence,
The value of x is 144.