Answer:
the first one
Step-by-step explanation:
It is 2.4 x 2.5 which equals 6 the answer is 6
18 points scored for a pair was 40 % of the final score
then final score is 100%
therefore if 40 % accounts for 18 points
100 % = 18 / 40% *100%
= 45 points is the final score
if we back calculate = 18 /45 *100 = 40%
Therefore the final score is 45 points
I believe your answer is--- > The slope = 1; x= -2; y=2
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.