Solve the system by the substitution method.
A. (3, -4), (-3, 4)
B. (3, 4), (-3, -4)
C. (3, -4), (-3, -4)
D. (3, -4)
Answer: A
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The equation gives the position s = f(t) of a body moving on a coordinate line (s in meters, t in seconds). s (m)
When is the body moving backward?
A. 2 < t < 3, 4 < t < 5, 7 < t < 9 B. 8 < t ? 10 C. 2 < t < 3, 4 < t < 5, 7 < t < 8 D. 8 < t < 9
Determine whether the equation defines y as a function of x. y = |x|
A. function B. not a function
Give the domain and range of the relation.{(2, 2), (-1, -1), (-6, -6), (5, 5)}
A. None of these B. domain: {-6, -1}; range: {2, 5} C. domain: {2, 5}; range: {-6, -1} D. domain: {-6, -1, 2, 5}; range: {-6, -1, 2, 5}
List the elements in the sample space of the experiment.An 8-sided die is rolled. The sides contain the numbers 1, 2, 3, 4, 5, 6, 7, 8. List the sample space of rolling one die.
A. {64} B. None of these C. {1, 2, 3, 4, 5, 6, 7, 8} D. {8}