What conditions must be met in order to use the quadratic formula to solve a quadratic equation? (le 2 = 5(x + 2) ) Answer in complete sentences and include the following words: standard form, rewrite, and zero.

Apublic library wants to place 4 magazines and 9 books on each display shelf. the expression 4s+9s represents the total number of items that will be displayed on s shelves. simplify the expression

X+ y = 5 ; x - y =3 solve using linear combination

Long division setup showing an incomplete calculation. 12 is in the divisor, 6839 is in the dividend, and 5 hundreds and 6 tens is written in the quotient. 6000 is subtracted from 6839 to give 839. an unknown value represented by a box is being subtracted from 839. what number should be placed in the box to complete the division calculation?