The answer is x=7 hope this helps:)
Answer:
The volume of can A is half the volume of can B.
Step-by-step explanation:
Given
Can A and Can B
Required
The true statement
For Can A, we have:


The volume is:

This gives:



For Can B, we have:


The volume is:

This gives:



So, we have:


By comparison, (d) is correct
F(x)=2x-3
f(1/2)=2(1/2)-3
f(1/2)= 1-3
f(1/2)= -2
Answer:
see explanation
Step-by-step explanation:
Calculate the slope m using the slope formula
m = 
with (x₁, y₁ ) = (8, - 3) and (x₂, y₂ ) = (2, 6)
m =
=
= - 
------------------------------------------
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Given
y = 5 - 2x , that is
y = - 2x + 5 ← in slope- intercept form
with slope m = - 2
In this problem, given the focus at (2,4) and directrix at y = 8. then it is implied that the parabola is facing downwards. The vertex hence is at the middle of the focus and the directrix, hence at (2, 6). The general formula of the parabola is y-k = -4a ( x-h)^2. Substituting, y -6 = -1/8 *(x-2)^2. Answer is A.