Given right triangle
A
B
C
ABC with altitude
B
D
‾
BD
drawn to hypotenuse
A
C
‾
AC
. If
B
D
=
3
BD=3 and
D
C
=
1
,
DC=1, what is the length of
A
C
‾
?
AC
?
twenty-six miles over two gallons because the proportion for the original 13 miles to one gallon would be written 13/1 and, doing the same thing to the top and bottom, i multiplied by 2 and got 26/2
Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20