;
2 × 5 × sin( π / 12 ) = 10 × sin ( π / 12 ) ;
π/12 = ( 180° ) / 12 = 15°.
<span>
But, sin ( π/12 ) </span>
<span>= sin 15° </span>
<span>= sin ( 45° - 30°) </span>
<span>= sin 45°· cos 30° - cos 45°· sin 30° </span>
<span>= (1/√2)·(√3 /2 ) - (1/√2)·(1/2) </span>
<span>= ( √3 - 1 ) / (2√2) = </span>
;
Finally, ( 2.5 ) × ( 2.4 - 1.4 ) = 2.5 cm ;
Http://www.helpingwithmath.com/by_subject/percentages/per_calculating.htm
go to that link
Answer:
ANSWER: D AA, x = 5 1/3
Calculation:
x/8 = 10/15
x = (10/15)(8)
x = 5 1/3
Step-by-step explanation:
Answer:
9 thousand 5 hundred
Step-by-step explanation:
hope this helps
The answer would be A. Use a proportion