1/3 because there are 3 people and only one correct answer
Sin(x)=40/50
x= sin^-1(40/50)
x= 53.1301023542—>53.1 rounded to the nearest tenth
angle of elevation is 53.1
Answer:
Solve the inequality. a + 5.7 > –2.3
(A)a > 3.4
(B)a > 8
(C)a > –3.4
<u>(D)a > –8</u>
Step-by-step explanation:

Answer:
D
Step-by-step explanation:
Use the formula for the SA of a hemisphere.

Now we can find the radius of the hemisphere, which is 15.
Then, we can square that and multiply it by 2 to get 450.
Now, let's use the formula for the Volume of a hemisphere.

Now we can cube 15 and multiply it by 2 to get 6750.
Then we can divide this number by 3.
2250.
So the answer is D.