Answer:
3526
Step-by-step explanation:
4300×3%=129
129×6=774
4300_774= 3526
Lynn mixes 39 pounds of water with 48 pounds of brick dust, so the mixture has a total weight of 39 + 48 = 87 pounds.
13 pounds are spilled during mixing, so she's left with 87 - 13 = 74 pounds to turn into bricks.
7 pounds are needed for 1 brick, so she can make 10 bricks because 7 • 10 = 70 and 7 • 11 = 77, and 70 < 74 < 77.
If she uses the mixture to make 10 bricks, she uses up 70 pounds of it, which leaves 4 pounds to be washed out.
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:
A and B
Step-by-step explanation:
I tried it and it was correct. The United states has the tallest... and China has more buildings... are the correct ones.
Answer:
B) 25% of her students are in chemistry.
Step-by-step explanation:
There were 0.1, or 10%, of freshmen in chemistry. There were 0.25, or 25%, of sophomores in chemistry. This is a total of 0.1+0.25 = 0.35, or 35%.
This is not 25%.