Which of the following is the correct word equation for the reaction described below? calcium hydroxide and hydrogen gas are produced by the reaction of calcium hydride and water. a.) calcium hydride + hydrogen → calcium hydroxide + water b.) calcium hydride + water → calcium hydroxide + hydrogen c.) calcium hydroxide + hydrogen → calcium hydride + water d.) calcium hydroxide + water → calcium hydride + hydrogen

The first hexagon is dilated to form the second hexagon select the answers from the drop box menus to correctly complete the statement

Demonstrate the proof of your new polynomial identity through an algebraic proof and a numerical proof in an engaging way! make it so the whole world wants to purchase your polynomial identity and can't imagine living without it! you must: label and display your new polynomial identity prove that it is true through an algebraic proof, identifying each step demonstrate that your polynomial identity works on numerical relationships create your own using the columns below. see what happens when different binomials or trinomials are combined. square one factor from column a and add it to one factor from column b to develop your own identity. column a column b (x − y) (x2 + 2xy + y2) (x + y) (x2 − 2xy + y2) (y + x) (ax + b) (y − x) (cy + d)

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?