Answer:
16.8 
Step-by-step explanation:
Find your answer by using the formula of a cone (v= 
π
h)
r= 2 (half of your diameter, which is 4)
h= 4
By inserting your radius and height, you get v= π(
)4.
Put that into a calculator and you get 16.75516, which rounds to 16.8.
Answer:
x = 4.14 y = -.7
Step-by-step explanation:
<span>Think of arcsin (-1/3) as an angle, and call it "theta." The the original problem becomes "find sec [ 2 theta ]"
1 1
which is the same as "find ------------------ " or --------------------------------------
cos[2 theta] (cos theta)^2 - (sin theta)^2
Recall that theta = the angle whose sine is -1/3. Thus, sin theta = -1/3 and cos theta = 2sqrt(2) / 3.
So we now have:
1
-------------------------------------------
2 sqrt(2) -1
[------------------- ]^ 2 - [ ------- ]^2
3 3
which boils down to:
1 1
----------------- = ---------------- = 9/7 (answer)
8 1 7/9
------ - --------
9 9
</span>
Answer:
25
Step-by-step explanation:
You have to do base x height divided by 2
50/2
Answer:
10). m∠x = 47°
11). x = 30.96
Step-by-step explanation:
10). By applying Sine rule in the given triangle DEF,
Sin(x) = 
Sin(x) = 0.7309
m∠x = 
m∠x = 46.96°
m∠x ≈ 47°
11). By applying Sine rule in ΔRST,
x = 
x = 30.96
