A student found the product of 5 × 105 and 9 × 104 to be 4.5 × 109. What is the error? What is the correct product? Complete the explanation. The student . The correct product is × 109 or .

225/100 of last years cost. write each fraction as a decimal and as a percent

What is the value of x? enter your answer in the box. (cm)

In the following diagram it is given that dec,ab || dc, ad || eb, and ad is congruent to bc. a)why isn't abc a parallelogram even though it has a pair of parallel sides and a pair of congruent sides b)explain why be must be congruent to bc. further explain what type of triangle this makes triangle abc and what it tells you about angle 1 and angle 2c) finally why must angle 3 be congruent to angle 1? further, explain why we know that angle 3 is congruent to angle 2