1 is 117 because 18x6.5 is 117
The formula of an area of parallelogram:

We have
and 
Substitute:
<em>divide both sides by 6.3</em>

Answer: 
First you want to subtract 21.91 from 68.77 which will leave you with 46.86 then you divide 46.86 by 1.72 then you get about 27.22 so 27.20 gigs were used
Answer:
X = 64 and Y= 43
Step-by-step explanation:
If this was helpful your welcome, but if it's not than im sorry
<h3>
Answer:</h3>
- using y = x, the error is about 0.1812
- using y = (x -π/4 +1)/√2, the error is about 0.02620
<h3>
Step-by-step explanation:</h3>
The actual value of sin(π/3) is (√3)/2 ≈ 0.86602540.
If the sine function is approximated by y=x (no error at x = 0), then the error at x=π/3 is ...
... x -sin(x) @ x=π/3
... π/3 -(√3)/2 ≈ 0.18117215 ≈ 0.1812
You know right away this is a bad approximation, because the approximate value is π/3 ≈ 1.04719755, a value greater than 1. The range of the sine function is [-1, 1] so there will be no values greater than 1.
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If the sine function is approximated by y=(x+1-π/4)/√2 (no error at x=π/4), then the error at x=π/3 is ...
... (x+1-π/4)/√2 -sin(x) @ x=π/3
... (π/12 +1)/√2 -(√3)/2 ≈ 0.026201500 ≈ 0.02620