Answer:
1st one
Step-by-step explanation:
6x^2-6x+5 would be the correct answer
Answer:
x=0
Step-by-step explanation:
x^2-8x-2=0
x=±3√2−4
The area of a square floor on a scale drawing is 81 square centimeters, and the scale drawing is 1 centimeter:2 ft.
so the original area is
A = 81 sq cm ( 2 ft / 1 cm)^2a = 324 sq ft
so the ratio of the ratio the area in the drawing to the actual area is:
r = 81 sq cm / 324 sq ftr = 1 sq cm / 4 sq ft1 sq cm : 4 sq ft
