The door frame is a rectangle. The diagonals of a rectangle are congruent. She can measure the two diagonals and make sure they are congruent.
Answer:
$242.19
Step-by-step explanation:
6 1/4 as a percent: 25/400
25*3,875= 96,875
96,875^400=242.1875, rounded is equal to $242.19
slope = 
using the points (1, 2 ) and (- 2, 0 ) then slope m
m =
=
= 
Answer:
Addition
Step-by step explanation:
Let a=5.54 and b=5.566
a+b=5.54+5.566=11.106
Using significant rule of addition
a+b=11.11(4 significant figures)
b-a= 0.026
Using significant rule of subtraction
b-a=0.03(Two significant figures)

Using significant rule of multiplication
(3 significant figures)

Using significant rule of division
(Three significant figures)
Addition can produce the greatest number of significant figures