Solve.The distance that an object falls when it is dropped is directly proportional to the square of the amount of time since it was dropped. An object falls 88.2 meters in 3 seconds. Find the distance the object falls in 4 seconds.
A. 117.6 meters
B. 39.2 meters
C. 156.8 meters
D. 12 meters
Answer: C
Mathematics
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Multiply.(x + 1)(-2x - 8)
A. -2x2 - 10x - 10 B. -2x2 - 8x - 10 C. -2x2 - 10x - 8 D. -2x2 - 12x - 8
Mathematics
Multiply. Assume all variables represent nonnegative real numbers.
? 
A. x4
B. 15x4
C. 
D. 
Mathematics
State the domain and range of the one-to-one functions f and f-1.f(x) = 
A. f(x): domain (-?, ?), range (-?, ?);
f-1(x): domain (-?, ?), range (-?, ?)
B. f(x): domain 
? 
, range 
? 
;
f-1(x): domain 
? 
, range 
? 
C. f(x): domain 
? 
, range (-?, 1) ? (1, ?);
f-1(x): domain (-?, 1) ? (1, ?), range 
? 
D. f(x): domain 
? 
, range (-?, 0) ? (0, ?);
f-1(x): range (-?, 0) ? (0, ?), range 
? 
Mathematics
Solve the equation.
- 
= 
A. 4
B. 7
C. -4
D. 
Mathematics