Answer:
h = 17.65 m
Step-by-step explanation:
The given equation gives the speed at impact :

h is height form where the object is dropped
Put v = 18.6 m/s in the above equation.

So, the object must be dropped from a height of 17.65 m.
The difference is 3ft since the surface area for the prism is 57, and the surface area for the cube is 54.
You can use the surface area formula
2(wl+hl+hw) = Area
2·(3·4.5+2·4.5+2·3)=57
And a cubes surface area formula
6a^2 = Area
6·32=54
Answer:
f(x)=-|x|
Step-by-step explanation:
We have been given a graph of f(x) which resembles with the graph of function g(x) where g(x)=|x|.
It says that graph is flipped over the x-axis.
Now we have to find about which of the following choice correctly describes the given graph.
We know that |x| means absolute value of x so that means g(x)=|x| is absolute function in shape of V.
We know that flipping over x-axis can be done by changing f(x) into -f(x).
<u>Hence correct answer is choice D) F(x)=-|x|</u>
Answer:
x=0.5
Step-by-step explanation:
7 is half of 14, so for x to be equal to 7/14 it's also equal to 0.5
Answer should be 20
4x5=20