Answer:
209.615384
Step-by-step explanation:
Answer:
Option D: 
is the correct answer.
Step-by-step explanation:
Given that:
3/4 inches on map are equal to 
miles
We will find the unit rate in term of inches.
Total distance covered by Bonnie according to map;
Total distance = 
Total distance = 
Actual distance = 
Actual distance = 
Hence,
Option D: is the correct answer.
Answer:
16 cm^2 and 49 cm^2
Step-by-step explanation:
The ratio of areas is the square of the ratio of linear dimensions, so is ...
(4/7)^2 = 16/49
The sum of these "ratio units" is 16 +49 = 65. The sum of triangle areas is 65 cm^2, so each "ratio unit" must stand for 1 cm^2 of area. That is, the triangles must have areas of ...
Answer:
(2x-9)(2x+9)
Step-by-step explanation:
This is a difference of squares because it can be written as (2x)^2-9^2
The formula for factoring a difference of squares is a^2-b^2=(a-b)(a+b)
So replace a with 2x and b with 9 giving us
4x^2-81=(2x-9)(2x+9)
