Answer:
V= 120
Step-by-step explanation:
due to the formula, V=1/3 * S * H = 1/3 * (9*4) * 10= 1/3*360= 360/3= 120
An x intercept occurs whenever y=0.
y=(x-4)(x+2)
So for y=0, x=-2 or 4, so the x-intercepts are:
(-2, 0) and (4, 0)
Only (-2, 0) is within your answer choices.
Answer:
Given the statement: For a person standing 100 m from the center of the base of the excel tower, the angle of elevation to the top of the tower is 71.6 degrees.
Let h be the height of the Eiffel tower.
Angle of elevation is, 
Distance of boy standing from the center of the base of the Eiffel tower is, 100 m.
Using tangent ratio:

From the given figure as shown;
Solve for h;

Multiply both sides by 100 we have;

or

Simplify:

therefore, the height of the Eiffel tower is, 300m
I don't know but ask someone who can help you
This is what I got:
sin 54 ° = 0.80901699
I’m not sure what the [?] is cause I see no number beneath it either but I hope this somehow helps