Answer:
2
due to the thenth being higher than the number five i would say round up so 9 becomes a solid number so the answers 2
just remember:
it goes ones decimal tenths hundreths thosenths
as well as five or more raise the score for or less let it rest
sorry for mispelling words its not my greatest skill
Recall the double-angle identity,
sin²(<em>x</em>) = (1 - cos(2<em>x</em>)) / 2
Now if sin(12°) = <em>k</em>, then
<em>k</em> ² = sin²(12°) = (1 - cos(24°)) / 2
→ cos(24°) = 1 - 2<em>k</em> ²
Answer:
The triangles are not similar.
Step-by-step explanation:
First, what's all the information we know?
We know we're trying to prove that triangle BAC is similar to triangle DEC.
We know AC=12 and EC =12 (proving 1 side equal).
We know angle BCA and angle DCE or equal.
However, we do not know any information further than this, and there is no postulate/theorem for AS. Therefore, the triangles are not similar.
To find out how many quarts there are in 40 gallons, we simply need to know how many quarts there are in one gallon. As the name implies, there are 4 quarts in one gallon, so we simply need to multiply 4 * 40 to find the amount of quarts in 40 gallons.
4 * 40 = 160
There are 160 quarts in 40 gallons.
Hope that helped! =)