Graph the parabola or ellipse. Include the directrix that corresponds to the focus at the origin.r = 
A. 
B. 
C. 
D. 
Answer: D
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Use the value of k = 20 to complete the table for the inverse variation model 
a. 
b. 
c. 
d. 
Solve.While traveling in a car, the centrifugal force a passenger experiences as the car drives in a circle varies jointly as the mass of the passenger and the square of the speed of the car. If the a passenger experiences a force of 64.8 newtons when the car is moving at a speed of 30 kilometers per hour and the passenger has a mass of 80 kilograms, find the force a passenger experiences when the car is moving at 30 kilometers per hour and the passenger has a mass of 50 kilograms.
A. 36 newtons B. 45 newtons C. 54 newtons D. 40.5 newtons
In the following figure: 
are parallel and ?DEF is an isosceles triangle.
(a) List two supplementary angles.
(b) What shape is ABDEGHA?
(c) What is the measure of ?DFG?
(d) What is the measure of ?BAH?
(e) How many obtuse interior angles are in the figure? List the angle names and measures.
(f) List one set of vertices that form a pentagon.
(g) List two sets of vertices that form scalene triangles
(h) Which angles are congruent? List all congruent angle sets.
Without actually converting, choose the most reasonable answer.A 55-gallon drum has a capacity of about __________ .
A. 208 L B. 20.8 L C. 20.8 ml D. 208 ml