No, Aileen's mom is incorrect. Aileen can read 30 pages in the same time period as her friend reads 20 pages.
To get this answer, you multiply 20 by 1.5
20 x 1.5 = 30
Let the curve C be the intersection of the cylinder
and the plane
The projection of C on to the x-y plane is the ellipse
To see clearly that this is an ellipse, le us divide through by 16, to get
or
,
We can write the following parametric equations,
for
Since C lies on the plane,
it must satisfy its equation.
Let us make z the subject first,
This implies that,
We can now write the vector equation of C, to obtain,
The length of the curve of the intersection of the cylinder and the plane is now given by,
But
Therefore the length of the curve of the intersection intersection of the cylinder and the plane is 24.0878 units correct to four decimal places.
Answer:
Step-by-step explanation:
4x+9y=-14
make x 0
9y=-14
y=-1.5(repeating)
to figure out x make y zero.
4x=-14
x=-3.5
hope this helped!
Answer: x=4,y=5
Step-by-step explanation:
Answer:
B, 5 degrees
Step-by-step explanation:
-20 -5 = -25