Solve the problem.An object is suspended from a coiled spring. It is pulled downward and released. The position P above or below its rest position after t seconds is given by P = -e-x/2? cos xFind all values of t (0 ? t < 4?) for which the object is at the rest position and graph the equation for 
What will be an ideal response?
t = 
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; 
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Tell whether the relation is reflexive, symmetric, or transitive on the set of all people. Also tell whether the relation is an equivalence relation."Is a sibling of"
A. Reflexive and symmetric; not an equivalence relation B. Reflexive, symmetric and transitive; equivalence relation C. Symmetric and transitive; not an equivalence relation D. Reflexive and transitive; not an equivalence relation
Solve the linear inequality. Graph the solution set on a number line, and express the solution using interval notation.
x ? 1 + 
x
A. [-4, ?)
B. (-?, 4]
C. (4, ?)
D. [4, ?)
Perform the indicated division or state that the expression is undefined.
A. 0 B. 1 C. -15 D. undefined
Convert to fraction notation.206
A. 
B. 
C. 
D. 