What are the possible numbers of positive real, negative real, and complex zeros of f(x) = 8x4 + 13x3 − 11x2 + x + 9? positive real: 1  negative real: 3 or 1  complex: 2 or 0  positive real: 2 or 0  negative real: 0  complex: 2 or 4  positive real: 3 or 1  negative real: 1  complex: 2 or 0  positive real: 2 or 0  negative real: 2 or 0  complex: 4, 2 or 0

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Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

Consider the following geometry problems in 3-space enter t or f depending on whether the statement is true or false. (you must enter t or f -- true and false will not work.) f equation editorequation editor 1. a plane and a line either intersect or are parallel t equation editorequation editor 2. two planes parallel to a third plane are parallel f equation editorequation editor 3. two lines either intersect or are parallel f equation editorequation editor 4. two planes orthogonal to a third plane are parallel f equation editorequation editor 5. two planes orthogonal to a line are parallel f equation editorequation editor 6. two planes either intersect or are parallel f equation editorequation editor 7. two lines orthogonal to a third line are parallel t equation editorequation editor 8. two lines parallel to a third line are parallel t equation editorequation editor 9. two planes parallel to a line are parallel f equation editorequation editor 10. two lines parallel to a plane are parallel f equation editorequation editor 11. two lines orthogonal to a plane are parallel