Answer:
150
Step-by-step explanation:
300-150
Answer:
20 gray squares
Step-by-step explanation:
Given
See attachment for squares
Required
Number of gray squares when white = 16
First, we calculate the equation that represents both squares.
<u>The white squares</u>
--- initial

-- difference between successive gray squares
So, the nth term is:




<u>The gray squares</u>
--- initial

-- difference between successive gray squares
So, the nth term is:




When the white squares is 16
--- Calculate n




To get the number of gray squares;
Substitute
in 


Answer:
Step-by-step explanation:
tan(79°) = US/TU = 9.1/TU
TU = 9.1/tan(79°) = 1.8 ft