3x^2-4=7x standard form in quadratic ?

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Use the following statements to write a compound statement for the conjunction or disjunction. then find its truth value. p: an isosceles triangle has two congruent sides. q: a right angle measures 90° r: four points are always coplanar. s: a decagon has 12 sides. a) a right angle measures 90° or an isosceles triangle has two congruent sides; true. b) a right angle measures 90° and an isosceles triangle has two congruent sides; true. c) a right angle measures 90° and an isosceles triangle does not have two congruent sides; false. d) a right angle measures 90° or an isosceles triangle does not have two congruent sides; true.