Answer:
5x^2 + 3x +4
Step-by-step explanation:
(2x^2 + x + 3) + (3x^2 + 2x + 1)
Combine like terms
(2x^2 + 3x^2 + 2x+ x + 3 + 1)
5x^2 + 3x +4
Remember that percent just means "out of 100", so 116% is 116 out of 100:

To simplify, you just divide each number by numbers that go into each:

So, 116% in simplified fraction form is 29/25.
Step-by-step explanation:
General line equation: y = mx + c.
2y + 3x = 5
2y = -3x + 5
y = -1.5x + 2.5
Hence m = -1.5 and c = 2.5.
Answer:

Step-by-step explanation:
From the way the answers are presented, it can be seen that x refers to the radius of the base of the cone
radius: 
and we are told that the height is twice the radius, so:
height: 
and now we use the formula to calculate the volume of a cone:

where
is volume,
is radius, and
is the height. and
is a constant
in this case


so we substitute thisvalues in the formula for the volume:

Rearranging the terms

which is option A.