Martha measured the perimeter of a painting as 212 centimeters. If framing boards are labeled in inches, which board length will give her enough material to frame the painting? Note: 1 inch = 2.54 centimeters. 96 inhes
72 inches
48 inches
36 inches

a) 96 inches

2.54cm  1 inch

212cm x inches

x = 212cm×1in/2.54cm = 83.46 inches

a) 96 inches

i found two solutions,   n = 2 • ± √3 = ± 3.4641

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)