Find the domain and the range of the functions or relations from the graph.
A. domain: [-9, 9]; range: [-8, 8]
B. domain: (-?, ?); range: (-?, ?)
C. domain: [0, 9]; range: [0, 8]
D. domain: [-8, 8]; range: [-9, 9]
Answer: A
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Solve the problem.A = ?r2, where r is the radius, in centimeters. By approximately how much does the area of a circle decrease when the radius is decreased from 4 cm to 3.8 cm? (Use 3.14 for ?.)
A. 2.5 cm2 B. 5.0 cm2 C. 5.2 cm2 D. 4.8 cm2
Simplify the rate and write the result in words.
A. 
; 16 goals for every 17 soccer games
B. 
;
48 goals for every 17 soccer games
C. 
; 17 goals for every 16 soccer games
D. 
; 17 soccer games for every 16 goals
Provide an appropriate response.On a multiple choice test, each question has 6 possible answers. Prove by induction that the number of different ways of completing a test with n questions is 6n.
What will be an ideal response?
Solve the problem.A grasshopper is perched on a reed 5 inches above the ground. It hops off the reed and lands on the ground about 3.8 inches away. During its hop, its height is given by the equation 
, where x is the distance in inches from the base of the reed, and h is in inches. How far was the grasshopper from the base of the reed when it was 4.25 inches above the ground? Round to the nearest tenth.
A. 0.6 inches B. 0.4 inches C. 2.6 inches D. 3.8 inches