The answer to the first question is 138.125 because you would multiply all those numbers together to get volume
Each time they assume the sum is rational; however, upon rearranging the terms of their equation, they get a contradiction (that an irrational number is equal to a rational number). Since the assumption that the sum of a rational and irrational number is rational leads to a contradiction, the sum must be irrational.
(write this in your own words)
Answer:
D. 10.91 square centimeters
Step-by-step explanation:
Area of a sector of a circle =


where 
radius (r) = half of diameter = 10/2 = 5 cm
Area = 
= 10.91 
Answer:

Step-by-step explanation:
The given parabola has its focus at (-5,-5) and the directrix is at: y=7.
The equation of such parabola is given by the formula:

The vertex of the parabola is the midpoint of (-5,-5) and (-5,7).

The value of p is the distance from the (-5,-5) to (-5,1).
p=|1--5|=6
We substitute the values of the vertex and p into the equation to get;


Or
