Mario's $15,000 car depreciates in value at a rate of 27.1% per year. The value, V, after t years can Be modeled by the function V = 15,000 (0.729)t . Which function is equivalent to the original function?

1) 15,000 (0.9)3 t
2) 15,000 (0.9)2 t
3) 12,000 (0.9)t /9
4) 13,000

What values of x satisfy the inequality x^2-9x< 0? how is your answer shown on the graph?

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?

Asix-sided die of unknown bias is rolled 20 times, and the number 3 comes up 6 times. in the next three rounds (the die is rolled 20 times in each round), the number 3 comes up 6 times, 5 times, and 7 times. the experimental probability of rolling a 3 is 10 %, which is approximately % more than its theoretical probability. (round off your answers to the nearest integer.)