12 - 3 = 9
So there are 9/12 cookies left.
So then John ate 3/12 cookies.
3/12 = 1/4
Convert into a decimal. .
1/4 = 0.25
0.25 = 25%
So, James bought 12 cookies and ate 3 of them. He ate 25% of the cookies.
Answer For the First One:
D, 51.3%
Step-by-step explanation:
The total number of students that ordered popcorn was 80 and 80 is 51.3% of 156 (the total number of students)!
Answer For the Second One:
C, It was reflected over the X-axis
Explanation:
If you just flip the DEF backwards over the x-axis it makes the GHI shape!
Hope this helps! :)
Answer:
cos (
) = 
Decimal value: −0.9238795325...
Step-by-step explanation:
Write,
cos = cos 
= −cos 
Now using half angle formula, cos(x) = 2 cos²(
) − 1, we can write cos 
= 2
cos²() − 1
This means 
+ 1 = 2 cos²()
2 cos²() = 
cos²() = 
cos() = 
Simplify,
= 
= 
Hence,
cos () = −cos () =
Answer:
v=432cm
sA=144cm
Step-by-step explanation:
1)))
v=w*d*h
v=3*9*16
v=432cm
2)))
sA=h*w
sA=16*9
sA=144cm
