In the diagram below of triangle
M
N
P
MNP,
Q
Q is a midpoint of
M
N
‾
MN
and
R
R is a midpoint of
N
P
‾
NP
. If
Q
R
=
96
−
9
x
QR=96−9x, and
M
P
=
2
x
+
12
MP=2x+12, what is the measure of
Q
R
QR?

Apinhole camera is made out of a light-tight box with a piece of film attached to one side and pinhole on the opposite side. the optimum diameter d(in millimeters) of the pinhole can be modeled by d=1.9[ (5.5 x 10^-4) l) ] ^1/2, where l is the length of the camera box (in millimeters). what is the optimum diameter for a pinhole camera if the camera box has a length of 10 centimeters

You need to solve a system of equations. you decide to use the elimination method. which of these is not allowed? 3x - 2y = 7 3x + 4y = 17 equation 1 equation 2

Which of the following shows the length of the third side, in inches, of the triangle below