For question 1-4, find the simplified form of each expression. 1. (-3)^-4 (1 point) a. 12 b.-81 c.1/81 d.-1/81 2. (-7.4)^0 (1 point) a.-1 b.-7.4 c.0 d.1 3. -(5)^-1 (1point) a.-1/5 b.-5 c.5 d.1/5 4. simplify (1 point) -(3ab^2)^-3

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