The vertex of the parabola is (0,4), because you can use -b/2a to find the x coordinate a of the vertex. There is no b so b=0 and 0/anything is 0. Then you can plug 0 into the equation to find the y coordinate of the vertex. When you plug in 0 you get 4, so the vertex is (0,4)
I am not 100 percent sure but i think you multiply and the answer is 7.75 if not then try to divid how you get 7.75 is you make 3/4 into a decimal and that becomes 0.75 them multiply by 10 and get 7.75
Answer:
127.253 m^3
Step-by-step explanation:
To find the volume, we start by getting the area of the square base
Mathematically, that will be 4.9^2 m^2
To complete the volume, we multiply the area of the base by the height
= 4.9^2 * 5.3 = 127.253 m^3
<h2>
Answer:</h2>

<h2>
Step-by-step explanation:</h2>
In this problem we know the equation of a line, which is:

We also can write this equation as:

This line has a slope
which is also the slope of the line we are looking for because they're parallel. We also have a point
. Therefore, we can write this equation as follows:

From the figures below, the line in red is
while the line in blue is
and this line passes through the point (-5, -3)!
Answer:
x = arctan( 7/10) = ~35 deg
Hope this helps!
:)