The following data shows the amount of pieces of chocolate Ms. Charalambous ate over the last 30
days. Create a dot plot to show how much chocolate
she ate.
3,5,9, 2, 4, 5, 3, 8, 7, 4, 2, 9, 7, 1, 2, 2, 5, 7, 12, 6, 3,
7, 9, 2, 1, 7, 4, 3, 9, 10

Solve the equation 3x2 + 19x + 9 = 0 to the nearest tenth.

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?

Isaac wants the equation below to have no solution when the missing number is placed in the box. which number should he place in the box?