Rectangle prisms have 6 flat surfaces.
Answer:
1/8
Step-by-step explanation:
sin²(π/8) − cos⁴(3π/8)
Use power reduction formulas:
1/2 (1 − cos(2×π/8)) − 1/8 (3 + 4 cos(2×3π/8) + cos(4×3π/8))
Simplify:
1/2 (1 − cos(π/4)) − 1/8 (3 + 4 cos(3π/4) + cos(3π/2))
1/2 (1 − √2/2) − 1/8 (3 + 4 (-√2/2) + 0)
1/2 − √2/4 − 1/8 (3 − 2√2)
1/2 − √2/4 − 3/8 +√2/4
1/2 − 3/8
1/8
Using the information from the question, one can construct two equations:

... (1)

... (2)
by substituting (1) into (2) to find x


\frac{5}{4z} = \frac{1}{4}



⇒ z = 5
By substituting value of z into (1)
⇒ 4 (5) = x
⇒ x = 20
Thus the two numbers are 5 & 20
Answer:
I am pretty sure the answer is 19/30
Step-by-step explanation:
If u turn 2 1/9 ÷ 3 1/3 into improper fractions u will get 19/9 Divided by 10/3
Then u do the butterfly. So this would be 9 x 10 =90 and 19 x 3 =57 so this is what it looks like 57/90 and that can be simpflyed into 19/30. Becasue 3 x 19 = 57 and 3 x 30 = 90